WASHING MACHINE (TOP-LOADING) CONTENTS

SERVICE Manual

WASHING MACHINETOP-LOADING TYPEBasic Name WA48H7400AW (WA7000H PJT)Basic Code WA48H7400AWA2Model Name WA48J7700AW WA48J7770AP WA48J7770AW (WA7700J PJT)Model Code WA48J7700AWA2 WA48J7770APA2 WA48J7770AWA2

1 Safety Instructions

2FeaturesandSpecifications

3 Disassembly and Reassembly

4 Troubleshooting

5 PCB Diagram

6 Wiring Diagram

7 Reference

CoNTeNTS

1 Safety instructions 11-1 Safety instructions for service engineers 1

2 FeaturesandSpecifications 52-1 Features 52-2 Specifications 62-3 Detail features 72-4 Optionsspecifications 8

3 Disassembly and Reassembly 93-1 Tools for disassembly and reassembly 93-2 Standard disassembly drawings 10

4 Troubleshooting 194-1 Error modes 194-2 Corrective actions for each error code 234-3 The installation for leveling 27

5 PCB diagram 295-1 Main PCB 295-2 Detailed Manual for Connector and Relay Terminal Part - Main PCB 305-3 Sub PCB 315-4 Detailed Manual for Connector Terminal Part - Sub PCB 32

6 Wiring diagram 336-1 Wiring diagram 33

7 Reference 347-1 Model Number Naming Rules 34

Safety Instructions _ 1

1 SAfeTy INSTRuCTIoNS

1-1 SAfeTy INSTRuCTIoNS foR SeRvICe eNgINeeRS Besuretoobservethefollowinginstructionstooperatetheproductcorrectlyandsafelytopreventpossibleaccidents

and hazards while servicing TwotypesofsafetysymbolsWarningandCautionareusedinthesafetyinstructions

WARNINgHazards or unsafe practices that may result in severe personal injury or death

CAuTIoNHazards or unsafe practices that may result in minor personal injury or property damage

BefoRe SeRvICINg

bull (Whenservicingelectricalpartsorharnesses)Makesuretodisconnectthepowerplugbeforeservicing4 Failingtodosomayresultinariskofelectricshock

bull Donotallowconsumerstoconnectseveralappliancestoasinglepoweroutletatthesame time4 Thereisariskoffireduetooverheating

bull Whenremovingthepowercordmakesuretoholdthepowerplugwhenpullingtheplugfrom the outlet4 Failingtodosomaydamagetheplugandresultinfireorelectricshock

bull Whenthewashingmachineisnotbeingusedmakesuretodisconnectthepowerplugfrom the power outlet4 Failingtodosomayresultinelectricshockorfireduetolightning

bull Donotplaceorusegasolinethinnersalcoholorotherflammableorexplosivesubstancesnearthewashingmachine4 Thereisariskofexplosionandfirecausedfromelectricsparks

WARNINg

2 _ Safety Instructions

WHILe SeRvICINg

bull Checkifthepowerplugandoutletaredamagedflattenedcutorotherwisedegraded4 Iffaultyreplaceitimmediately

Failingtodosomayresultinelectricshockorfire

bull Completelyremoveanydustorforeignmaterialfromthehousingwiringandconnectionparts4 Thiswillpreventariskoffireduetotrackingandelectricalhazard

bull Whenconnectingwiresmakesuretoconnectthemusingtherelevantconnectorsandcheckthattheyarecompletely properly4 Iftapeisusedinsteadoftheconnectorsitmaycausefireduetotracking

bull MakesuretodischargethePBApowerterminalsbeforestartingtheservice4 Failingtodosomayresultinahighvoltageelectricshock

bull Whenreplacingtheheatermakesuretofastenthenutafterensuringthatitisinsertedintothebracket-heater4 Ifnotinsertedintothebracket-heaterittouchesthedrumandcausesnoiseandelectricleakage

AfTeR SeRvICINg

bull Checkthewiring4 Ensure that no wire touches a rotating part or a sharpened part of the electrical harness

bull Checkforanywaterleakage4 Performatestrunforthewashingmachineusingthestandardcourseandcheckwhetherthereisanywater

leakagethroughthefloorsectionorthepipes

bull Donotallowconsumerstorepairorserviceanypartofthewashingmachinethemselves4 This may result in personal injury and shorten the product lifetime

bull Ifitseemsthatgroundingisneededduetowaterormoisturemakesuretorungrounding wires (Checkthegroundingofthepoweroutletandadditionallygroundittoametallicwaterpipe)4 Failingtodosomayresultinelectricshockduetoelectricleakage

[Running a grounding wire]- Twistagroundingwire(copperwire)twoorthreetimesaroundthetap- Ifyouconnectthegroundingwiretoacopperplateburyit75cmundertheearthina

place with a lot of moisture DonotconnectthegroundingwiretoagaspipeplasticwaterpipeortelephonewireThereisariskofelectricshockorexplosion

Grounding terminal

75 cm

Copperplate

WARNINg

WARNINg

Safety Instructions _ 3

BefoRe SeRvICINg

bull Donotsprinklewaterontothewashingmachinedirectlywhencleaningit4 Thismayresultinelectricshockorfireandmayshortentheproductlifetime

bull Donotplaceanycontainerswithwateronthewashingmachine4 IfthewaterisspilleditmayresultinelectricshockorfireThiswillalsoshortenthe

product lifetime

bull Donotinstallthewashingmachineinalocationexposedtosnoworrain4 Thismayresultinelectricshockorfireandshortentheproductlifetime

bull Donotpressacontrolbuttonusingasharptoolorobject4 Thismayresultinelectricshockordamagetotheproduct

WHILe SeRvICINg

bull Whenwiringaharnessmakesuretosealitcompletelysonoliquidcanenter4 Makesurethattheydonotbreakwhenforceisexerted

bull Checkifthereisanyresiduethatshowsthatliquidenteredtheelectricpartsorharnesses4 Ifanyliquidhasenteredintoapartreplaceitorcompletelyremoveanyremainingmoisturefromit

bull Ifyouneedtoplacethewashingmachineonitsbackforservicingpurposesplaceasupport(s)onthefloorandlayitdowncarefullysoitssideisonthefloor4 Do not lay it down on its front This may result in the inside tub damaging parts

CAuTIoN

CAuTIoN

4 _ Safety Instructions

AfTeR SeRvICINg

bull Checktheassembledstatusoftheparts4 NowisagoodtimetoinspectyourworkReviewallconnectionsandwiringincludingmountinghardware

bull Checktheinsulationresistance4 Disconnect the power cord from the power outlet and measure the insulation resistance between the power plug

andthegroundingwireofthewashingmachineThevaluemustbegreaterthan10MΩwhenmeasuredwitha500V DC Megger

bull Checkwhetherthewashingmachineislevelthefloorwithrespecttotheoriginalpositionof the washing machine prior to service By doing this now will reduce for the need of customer dissatisfaction and redo call 4 Vibrations can shorten the lifetime of the product

CAuTIoN

FeaturesandSpecifications_5

2 feATuReS AND SPeCIfICATIoNS

2-1 feATuReS

features Description

The Great Capacity bull EvenbulkygarmentsandblanketsgetsupercleanTheGreatcapacityleavesenoughroomforamorethoroughcleanerwash

AquaJetTM

bull AquaJettradewashesloadsgentlyandmorethoroughlythanconventionaltoploaders Sprayed water allows detergent to distribute evenly and penetrate fabricsfasteranddeeperAquaJettradedeliversimprovedcleanlinessandadvanced fabric care

DD Motor

bull ThepowertohandleanythingOurdirect-driveinvertermotordeliverspowerrighttothewashertubfromavariablespeedreversiblemotorBeltlessdirect-drivemotorgeneratesahigherspinspeedformoreeffectivequietoperationThewasheralsohasfewermovingpartsmeaningfewerrepairs

Mist Shower bull Aseparatenozzlehasbeenadoptedthatsprayswaterequallysothattherinse cycle is effective even with a small amount of water

VRTreg (VibrationReductionTechnology)

bull ThisSamsungwasherperformssmoothlyattopspinspeedsminimizingnoise and vibration

Eco Plus bull Ifyouselectthisoptionthewatertemperatureissettoslightlylowerthanduring the normal wash course to save energy

Self Clean(TubCleaningcycle)

bull CleanyourdrumwithonebuttonThisPureCycleisspeciallydesignedtoremovedetergentresidueampdirtbulidupinthetubwithouttheneedforspecial chemical detergents

EZ-Closed Lid bull Thedoorisdesignedtoclosesoftlyandpreventusersfrombeinginjured

My Cycle bull Thisisaconvenientfunctionthatenablesyoutosaveafrequently-used

washcourseOncethisissetyoucandoawashsimplybypressingthePowerMyCycleandStartbuttonsinthissequence

Smart Care bull SamsungrsquosSmartCareanautomaticCheck-monitoringsystemdetectsanddiagnosesproblemsatanearlystageandprovidesquickandeasysolutions

Prewash (WaterJetampBuilt-insink)

bull WaterJetandBuilt-insinkhelpyouhandwashbeforethewashingmachinestartsoperationWaterJetisavailableonlywhenthedoorisopenwiththe

waterlevelsettolessthanHighForprewashingusetheBuilt-insinkthatisdesigned to facilitate the hand-wash

6_FeaturesandSpecifications

2-2 SPeCIfICATIoNS

TyPe ToP LoADINg WASHeR

DIMENSION(Inchescm)

AHeight 439Prime1115cm

B Width 270Prime686cm

C Height with Door open 581Prime1476cm

D Depth 293Prime744cm

WATERPRESSURE 20~116psi(137~800kPa)

WEIGHT 640kg(1411lb)

CAPACITY 48cuft

POWER CONSUMPTION

WASHING 120V 700W

SPIN 120V 400W

DRAIN 120V 80W

SPINREVOLUTION 1100rpm

C

B

A

D

FeaturesandSpecifications_7

2-3 DeTAIL feATuReS

gradeWA48J7700AWA48J7770A

WA48H7400AW

Image

Main Spec

Capacity(DOE) 48 48

AquaJetTM Yes Yes

Smart Care Yes Yes

Diamond interior drum Yes Yes

Self Clean Yes Yes

Washing Cycles 11 11

Internal Heater - -

VRTreg Yes Yes

Pulsator material STS STS

Maxrpm(Maxspinspeed)

1100 1100

Mist Shower Yes Yes

Motor DD DD

Design

Color White Inox

Neat White

Main display 1888 1888

JogDial Chrome Chrome

LED color Ice-blue Ice-blue

Door Lid TC Transparent Glass Tempered Tinted glass

Easy door Yes Yes

Top Cover Steel(EGI)+Painting Steel(EGI)+Painting

energy

EstimatedYearlyOperating Cost (whenusedwithan electric water heater)

$15

EstimatedYearlyEnergy Cost (whenusedwithan electric water heater)

$17

EstimatedYearlyElectricityUse 129kWh EstimatedYearly

ElectricityUse 145kWh

EstimatedYearlyOperating Cost (whenusedwithanatural gas water heater)

$9

EstimatedYearlyEnergy Cost (whenusedwithanatural gas water heater)

$11

8_FeaturesandSpecifications

2-4 oPTIoNS SPeCIfICATIoNS

Item Item Name Code No Remark

HOSE-HANGER DC61-00224A Default

MANUAL-BOOK DC68-03132L Default

CABLETIE 6501-000121 Default

ASSYCAPVW DC97-18313A Default

ASSY-LEGSUPPORT DC97-14095A Service

Notebull CustomercanpurchaseWatersupplydrainhosesandassylegsupportfromaservicecenter

Disassembly and Reassembly _ 9

3 DISASSeMBLy AND ReASSeMBLy

3-1 TooLS foR DISASSeMBLy AND ReASSeMBLy

Tool Type Remarks

Boxdriver10mm17mm

Tub(16)Fixerscrew(5)Motor(1)Balance(5)Damper(2)Damper(friction1)

Double-ended spanner

10mm17mm

ReplacedbyboxdriverLeg

Vice pliersAToolforprotectingemptyturningofboltorabrasionfromusingboxdriverFor disassembly of Spin drum

Others(screwdrivernipperlongnosepliers)

Common tools for servicing

JIGfortheASSYSPINBASKET

10 _ Disassembly and Reassembly

3-2 STANDARD DISASSeMBLy DRAWINgS Thisisastandarddisassemblydiagramandmaydifferfromtheactualproduct

Usethismaterialasareferencewhendisassemblingandreassemblingtheproduct

Part figure Description

Sub and Main PCB Assembly

1 Remove the 6 screws holding the control panel assembly

2 Separatethebothhooks(LeftandRight)3 Separate the cover panel upward

Ifitisdifficulttodisassembleusethe(-)drivertodisassemblehooks (Becarefuldamageofhooks)

4 Remove the 2 screws holding the control panel assembly and turn the panel over

5 PulltheEncoder-Knobtoseparateitandthenremovethe4fixingscrews WhenreassemblingthePCBtakecarethat you do not damage the control-panel fixinghookAfterreplacingthesubPCBcheckthekeyoperation

6 Separatethecoverpcb(m)andthewiresconnectedtothemainPBA Afterreassemblingthehousingcheckif the wires are properly connected When disassembling and reassembling thehousingtakecarethatyoudonotdamage the part

Disassembly and Reassembly _ 11

Part figure Description

Water valve

1 Afterseparatingthecontrolpanelseparatethe water-valve housing

2 Removethe3fixingscrews

3 Remove the wire-harness and release the 2 clamps connecting the hoses Whenreleasingtheclampstakecarethat you do not tear the hoses

12 _ Disassembly and Reassembly

Part figure Description

Door Assembly1 Remove the 2 inlay tapes 2 Remove the 4 screws holding the door

lid TC and separate the door

Disassembly and Reassembly _ 13

Part figure Description

Top Cover Assembly Door Switch

1 Remove the 2 screws from the cover plate

2 Separate the control panel assembly

3 SeparatetheAssyValveWaterthemainPBAtheAssySensorPressureandthefilterEMIhousing

Separate the housing to prevent stress and damage to the wire-harness

4 SeparatethemainwireharnessthepressureswitchhoseclipGroundingscrew

5 Release the bleach hose clamp

6 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

7 youcancheckthedoorswitchIfturntheTop cover upside down

Sensor Pressure Switch

1 Disassemble the control panel assembly2 Separate the pressure switch housing

3 Beforeseparatingthehosereleasetheclip Whenreleasingthecliptakecarethat you do not tear the hose

14 _ Disassembly and Reassembly

Part figure Description

Drain-Pump

1 Separatethebackcover2 Separate 2 clamps3 Remove the 13 screws in base4 Remove the 3 screws5screwsareseparatedbylsquo+rsquoshapehand

driver

Thermistor 1 Remove the 2 screws

Disassembly and Reassembly _ 15

Part figure Description

Clutch Assembly (continued)

1 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

2 Remove the 2 screws holding the panel control Separate all the wires connected to the housing

3 Removethe4screwsfixingthetub-cover and separate the tub-cover

4 Separate the pulsator-cap by inserting thetipofa(-)screwdriverbetweenthepulsator-cap and the pulsator and then liftingthescrewdriverup(uarr)

5 Remove the bolt holding the pulsator with a 10mm wrench

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

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mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

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nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

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apacity

(by M

arket)

Intro Year

Serie

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eature

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IntroR

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F-C

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F-C

ode 3

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W

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① P

roduct typ

e (C

AN

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uto W

ash

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ach

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AM

SU

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rsquos G

uide Lin

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② M

arke

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im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

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Hig

h

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re Ta

ble

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Cold

wate

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r 7 Inve

rter M

oto

rActiv D

ual W

ash

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rain

Pum

p

⑥ In

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PE A

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SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

CoNTeNTS

1 Safety instructions 11-1 Safety instructions for service engineers 1

2 FeaturesandSpecifications 52-1 Features 52-2 Specifications 62-3 Detail features 72-4 Optionsspecifications 8

3 Disassembly and Reassembly 93-1 Tools for disassembly and reassembly 93-2 Standard disassembly drawings 10

4 Troubleshooting 194-1 Error modes 194-2 Corrective actions for each error code 234-3 The installation for leveling 27

5 PCB diagram 295-1 Main PCB 295-2 Detailed Manual for Connector and Relay Terminal Part - Main PCB 305-3 Sub PCB 315-4 Detailed Manual for Connector Terminal Part - Sub PCB 32

6 Wiring diagram 336-1 Wiring diagram 33

7 Reference 347-1 Model Number Naming Rules 34

Safety Instructions _ 1

1 SAfeTy INSTRuCTIoNS

1-1 SAfeTy INSTRuCTIoNS foR SeRvICe eNgINeeRS Besuretoobservethefollowinginstructionstooperatetheproductcorrectlyandsafelytopreventpossibleaccidents

and hazards while servicing TwotypesofsafetysymbolsWarningandCautionareusedinthesafetyinstructions

WARNINgHazards or unsafe practices that may result in severe personal injury or death

CAuTIoNHazards or unsafe practices that may result in minor personal injury or property damage

BefoRe SeRvICINg

bull (Whenservicingelectricalpartsorharnesses)Makesuretodisconnectthepowerplugbeforeservicing4 Failingtodosomayresultinariskofelectricshock

bull Donotallowconsumerstoconnectseveralappliancestoasinglepoweroutletatthesame time4 Thereisariskoffireduetooverheating

bull Whenremovingthepowercordmakesuretoholdthepowerplugwhenpullingtheplugfrom the outlet4 Failingtodosomaydamagetheplugandresultinfireorelectricshock

bull Whenthewashingmachineisnotbeingusedmakesuretodisconnectthepowerplugfrom the power outlet4 Failingtodosomayresultinelectricshockorfireduetolightning

bull Donotplaceorusegasolinethinnersalcoholorotherflammableorexplosivesubstancesnearthewashingmachine4 Thereisariskofexplosionandfirecausedfromelectricsparks

WARNINg

2 _ Safety Instructions

WHILe SeRvICINg

bull Checkifthepowerplugandoutletaredamagedflattenedcutorotherwisedegraded4 Iffaultyreplaceitimmediately

Failingtodosomayresultinelectricshockorfire

bull Completelyremoveanydustorforeignmaterialfromthehousingwiringandconnectionparts4 Thiswillpreventariskoffireduetotrackingandelectricalhazard

bull Whenconnectingwiresmakesuretoconnectthemusingtherelevantconnectorsandcheckthattheyarecompletely properly4 Iftapeisusedinsteadoftheconnectorsitmaycausefireduetotracking

bull MakesuretodischargethePBApowerterminalsbeforestartingtheservice4 Failingtodosomayresultinahighvoltageelectricshock

bull Whenreplacingtheheatermakesuretofastenthenutafterensuringthatitisinsertedintothebracket-heater4 Ifnotinsertedintothebracket-heaterittouchesthedrumandcausesnoiseandelectricleakage

AfTeR SeRvICINg

bull Checkthewiring4 Ensure that no wire touches a rotating part or a sharpened part of the electrical harness

bull Checkforanywaterleakage4 Performatestrunforthewashingmachineusingthestandardcourseandcheckwhetherthereisanywater

leakagethroughthefloorsectionorthepipes

bull Donotallowconsumerstorepairorserviceanypartofthewashingmachinethemselves4 This may result in personal injury and shorten the product lifetime

bull Ifitseemsthatgroundingisneededduetowaterormoisturemakesuretorungrounding wires (Checkthegroundingofthepoweroutletandadditionallygroundittoametallicwaterpipe)4 Failingtodosomayresultinelectricshockduetoelectricleakage

[Running a grounding wire]- Twistagroundingwire(copperwire)twoorthreetimesaroundthetap- Ifyouconnectthegroundingwiretoacopperplateburyit75cmundertheearthina

place with a lot of moisture DonotconnectthegroundingwiretoagaspipeplasticwaterpipeortelephonewireThereisariskofelectricshockorexplosion

Grounding terminal

75 cm

Copperplate

WARNINg

WARNINg

Safety Instructions _ 3

BefoRe SeRvICINg

bull Donotsprinklewaterontothewashingmachinedirectlywhencleaningit4 Thismayresultinelectricshockorfireandmayshortentheproductlifetime

bull Donotplaceanycontainerswithwateronthewashingmachine4 IfthewaterisspilleditmayresultinelectricshockorfireThiswillalsoshortenthe

product lifetime

bull Donotinstallthewashingmachineinalocationexposedtosnoworrain4 Thismayresultinelectricshockorfireandshortentheproductlifetime

bull Donotpressacontrolbuttonusingasharptoolorobject4 Thismayresultinelectricshockordamagetotheproduct

WHILe SeRvICINg

bull Whenwiringaharnessmakesuretosealitcompletelysonoliquidcanenter4 Makesurethattheydonotbreakwhenforceisexerted

bull Checkifthereisanyresiduethatshowsthatliquidenteredtheelectricpartsorharnesses4 Ifanyliquidhasenteredintoapartreplaceitorcompletelyremoveanyremainingmoisturefromit

bull Ifyouneedtoplacethewashingmachineonitsbackforservicingpurposesplaceasupport(s)onthefloorandlayitdowncarefullysoitssideisonthefloor4 Do not lay it down on its front This may result in the inside tub damaging parts

CAuTIoN

CAuTIoN

4 _ Safety Instructions

AfTeR SeRvICINg

bull Checktheassembledstatusoftheparts4 NowisagoodtimetoinspectyourworkReviewallconnectionsandwiringincludingmountinghardware

bull Checktheinsulationresistance4 Disconnect the power cord from the power outlet and measure the insulation resistance between the power plug

andthegroundingwireofthewashingmachineThevaluemustbegreaterthan10MΩwhenmeasuredwitha500V DC Megger

bull Checkwhetherthewashingmachineislevelthefloorwithrespecttotheoriginalpositionof the washing machine prior to service By doing this now will reduce for the need of customer dissatisfaction and redo call 4 Vibrations can shorten the lifetime of the product

CAuTIoN

FeaturesandSpecifications_5

2 feATuReS AND SPeCIfICATIoNS

2-1 feATuReS

features Description

The Great Capacity bull EvenbulkygarmentsandblanketsgetsupercleanTheGreatcapacityleavesenoughroomforamorethoroughcleanerwash

AquaJetTM

bull AquaJettradewashesloadsgentlyandmorethoroughlythanconventionaltoploaders Sprayed water allows detergent to distribute evenly and penetrate fabricsfasteranddeeperAquaJettradedeliversimprovedcleanlinessandadvanced fabric care

DD Motor

bull ThepowertohandleanythingOurdirect-driveinvertermotordeliverspowerrighttothewashertubfromavariablespeedreversiblemotorBeltlessdirect-drivemotorgeneratesahigherspinspeedformoreeffectivequietoperationThewasheralsohasfewermovingpartsmeaningfewerrepairs

Mist Shower bull Aseparatenozzlehasbeenadoptedthatsprayswaterequallysothattherinse cycle is effective even with a small amount of water

VRTreg (VibrationReductionTechnology)

bull ThisSamsungwasherperformssmoothlyattopspinspeedsminimizingnoise and vibration

Eco Plus bull Ifyouselectthisoptionthewatertemperatureissettoslightlylowerthanduring the normal wash course to save energy

Self Clean(TubCleaningcycle)

bull CleanyourdrumwithonebuttonThisPureCycleisspeciallydesignedtoremovedetergentresidueampdirtbulidupinthetubwithouttheneedforspecial chemical detergents

EZ-Closed Lid bull Thedoorisdesignedtoclosesoftlyandpreventusersfrombeinginjured

My Cycle bull Thisisaconvenientfunctionthatenablesyoutosaveafrequently-used

washcourseOncethisissetyoucandoawashsimplybypressingthePowerMyCycleandStartbuttonsinthissequence

Smart Care bull SamsungrsquosSmartCareanautomaticCheck-monitoringsystemdetectsanddiagnosesproblemsatanearlystageandprovidesquickandeasysolutions

Prewash (WaterJetampBuilt-insink)

bull WaterJetandBuilt-insinkhelpyouhandwashbeforethewashingmachinestartsoperationWaterJetisavailableonlywhenthedoorisopenwiththe

waterlevelsettolessthanHighForprewashingusetheBuilt-insinkthatisdesigned to facilitate the hand-wash

6_FeaturesandSpecifications

2-2 SPeCIfICATIoNS

TyPe ToP LoADINg WASHeR

DIMENSION(Inchescm)

AHeight 439Prime1115cm

B Width 270Prime686cm

C Height with Door open 581Prime1476cm

D Depth 293Prime744cm

WATERPRESSURE 20~116psi(137~800kPa)

WEIGHT 640kg(1411lb)

CAPACITY 48cuft

POWER CONSUMPTION

WASHING 120V 700W

SPIN 120V 400W

DRAIN 120V 80W

SPINREVOLUTION 1100rpm

C

B

A

D

FeaturesandSpecifications_7

2-3 DeTAIL feATuReS

gradeWA48J7700AWA48J7770A

WA48H7400AW

Image

Main Spec

Capacity(DOE) 48 48

AquaJetTM Yes Yes

Smart Care Yes Yes

Diamond interior drum Yes Yes

Self Clean Yes Yes

Washing Cycles 11 11

Internal Heater - -

VRTreg Yes Yes

Pulsator material STS STS

Maxrpm(Maxspinspeed)

1100 1100

Mist Shower Yes Yes

Motor DD DD

Design

Color White Inox

Neat White

Main display 1888 1888

JogDial Chrome Chrome

LED color Ice-blue Ice-blue

Door Lid TC Transparent Glass Tempered Tinted glass

Easy door Yes Yes

Top Cover Steel(EGI)+Painting Steel(EGI)+Painting

energy

EstimatedYearlyOperating Cost (whenusedwithan electric water heater)

$15

EstimatedYearlyEnergy Cost (whenusedwithan electric water heater)

$17

EstimatedYearlyElectricityUse 129kWh EstimatedYearly

ElectricityUse 145kWh

EstimatedYearlyOperating Cost (whenusedwithanatural gas water heater)

$9

EstimatedYearlyEnergy Cost (whenusedwithanatural gas water heater)

$11

8_FeaturesandSpecifications

2-4 oPTIoNS SPeCIfICATIoNS

Item Item Name Code No Remark

HOSE-HANGER DC61-00224A Default

MANUAL-BOOK DC68-03132L Default

CABLETIE 6501-000121 Default

ASSYCAPVW DC97-18313A Default

ASSY-LEGSUPPORT DC97-14095A Service

Notebull CustomercanpurchaseWatersupplydrainhosesandassylegsupportfromaservicecenter

Disassembly and Reassembly _ 9

3 DISASSeMBLy AND ReASSeMBLy

3-1 TooLS foR DISASSeMBLy AND ReASSeMBLy

Tool Type Remarks

Boxdriver10mm17mm

Tub(16)Fixerscrew(5)Motor(1)Balance(5)Damper(2)Damper(friction1)

Double-ended spanner

10mm17mm

ReplacedbyboxdriverLeg

Vice pliersAToolforprotectingemptyturningofboltorabrasionfromusingboxdriverFor disassembly of Spin drum

Others(screwdrivernipperlongnosepliers)

Common tools for servicing

JIGfortheASSYSPINBASKET

10 _ Disassembly and Reassembly

3-2 STANDARD DISASSeMBLy DRAWINgS Thisisastandarddisassemblydiagramandmaydifferfromtheactualproduct

Usethismaterialasareferencewhendisassemblingandreassemblingtheproduct

Part figure Description

Sub and Main PCB Assembly

1 Remove the 6 screws holding the control panel assembly

2 Separatethebothhooks(LeftandRight)3 Separate the cover panel upward

Ifitisdifficulttodisassembleusethe(-)drivertodisassemblehooks (Becarefuldamageofhooks)

4 Remove the 2 screws holding the control panel assembly and turn the panel over

5 PulltheEncoder-Knobtoseparateitandthenremovethe4fixingscrews WhenreassemblingthePCBtakecarethat you do not damage the control-panel fixinghookAfterreplacingthesubPCBcheckthekeyoperation

6 Separatethecoverpcb(m)andthewiresconnectedtothemainPBA Afterreassemblingthehousingcheckif the wires are properly connected When disassembling and reassembling thehousingtakecarethatyoudonotdamage the part

Disassembly and Reassembly _ 11

Part figure Description

Water valve

1 Afterseparatingthecontrolpanelseparatethe water-valve housing

2 Removethe3fixingscrews

3 Remove the wire-harness and release the 2 clamps connecting the hoses Whenreleasingtheclampstakecarethat you do not tear the hoses

12 _ Disassembly and Reassembly

Part figure Description

Door Assembly1 Remove the 2 inlay tapes 2 Remove the 4 screws holding the door

lid TC and separate the door

Disassembly and Reassembly _ 13

Part figure Description

Top Cover Assembly Door Switch

1 Remove the 2 screws from the cover plate

2 Separate the control panel assembly

3 SeparatetheAssyValveWaterthemainPBAtheAssySensorPressureandthefilterEMIhousing

Separate the housing to prevent stress and damage to the wire-harness

4 SeparatethemainwireharnessthepressureswitchhoseclipGroundingscrew

5 Release the bleach hose clamp

6 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

7 youcancheckthedoorswitchIfturntheTop cover upside down

Sensor Pressure Switch

1 Disassemble the control panel assembly2 Separate the pressure switch housing

3 Beforeseparatingthehosereleasetheclip Whenreleasingthecliptakecarethat you do not tear the hose

14 _ Disassembly and Reassembly

Part figure Description

Drain-Pump

1 Separatethebackcover2 Separate 2 clamps3 Remove the 13 screws in base4 Remove the 3 screws5screwsareseparatedbylsquo+rsquoshapehand

driver

Thermistor 1 Remove the 2 screws

Disassembly and Reassembly _ 15

Part figure Description

Clutch Assembly (continued)

1 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

2 Remove the 2 screws holding the panel control Separate all the wires connected to the housing

3 Removethe4screwsfixingthetub-cover and separate the tub-cover

4 Separate the pulsator-cap by inserting thetipofa(-)screwdriverbetweenthepulsator-cap and the pulsator and then liftingthescrewdriverup(uarr)

5 Remove the bolt holding the pulsator with a 10mm wrench

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

Safety Instructions _ 1

1 SAfeTy INSTRuCTIoNS

1-1 SAfeTy INSTRuCTIoNS foR SeRvICe eNgINeeRS Besuretoobservethefollowinginstructionstooperatetheproductcorrectlyandsafelytopreventpossibleaccidents

and hazards while servicing TwotypesofsafetysymbolsWarningandCautionareusedinthesafetyinstructions

WARNINgHazards or unsafe practices that may result in severe personal injury or death

CAuTIoNHazards or unsafe practices that may result in minor personal injury or property damage

BefoRe SeRvICINg

bull (Whenservicingelectricalpartsorharnesses)Makesuretodisconnectthepowerplugbeforeservicing4 Failingtodosomayresultinariskofelectricshock

bull Donotallowconsumerstoconnectseveralappliancestoasinglepoweroutletatthesame time4 Thereisariskoffireduetooverheating

bull Whenremovingthepowercordmakesuretoholdthepowerplugwhenpullingtheplugfrom the outlet4 Failingtodosomaydamagetheplugandresultinfireorelectricshock

bull Whenthewashingmachineisnotbeingusedmakesuretodisconnectthepowerplugfrom the power outlet4 Failingtodosomayresultinelectricshockorfireduetolightning

bull Donotplaceorusegasolinethinnersalcoholorotherflammableorexplosivesubstancesnearthewashingmachine4 Thereisariskofexplosionandfirecausedfromelectricsparks

WARNINg

2 _ Safety Instructions

WHILe SeRvICINg

bull Checkifthepowerplugandoutletaredamagedflattenedcutorotherwisedegraded4 Iffaultyreplaceitimmediately

Failingtodosomayresultinelectricshockorfire

bull Completelyremoveanydustorforeignmaterialfromthehousingwiringandconnectionparts4 Thiswillpreventariskoffireduetotrackingandelectricalhazard

bull Whenconnectingwiresmakesuretoconnectthemusingtherelevantconnectorsandcheckthattheyarecompletely properly4 Iftapeisusedinsteadoftheconnectorsitmaycausefireduetotracking

bull MakesuretodischargethePBApowerterminalsbeforestartingtheservice4 Failingtodosomayresultinahighvoltageelectricshock

bull Whenreplacingtheheatermakesuretofastenthenutafterensuringthatitisinsertedintothebracket-heater4 Ifnotinsertedintothebracket-heaterittouchesthedrumandcausesnoiseandelectricleakage

AfTeR SeRvICINg

bull Checkthewiring4 Ensure that no wire touches a rotating part or a sharpened part of the electrical harness

bull Checkforanywaterleakage4 Performatestrunforthewashingmachineusingthestandardcourseandcheckwhetherthereisanywater

leakagethroughthefloorsectionorthepipes

bull Donotallowconsumerstorepairorserviceanypartofthewashingmachinethemselves4 This may result in personal injury and shorten the product lifetime

bull Ifitseemsthatgroundingisneededduetowaterormoisturemakesuretorungrounding wires (Checkthegroundingofthepoweroutletandadditionallygroundittoametallicwaterpipe)4 Failingtodosomayresultinelectricshockduetoelectricleakage

[Running a grounding wire]- Twistagroundingwire(copperwire)twoorthreetimesaroundthetap- Ifyouconnectthegroundingwiretoacopperplateburyit75cmundertheearthina

place with a lot of moisture DonotconnectthegroundingwiretoagaspipeplasticwaterpipeortelephonewireThereisariskofelectricshockorexplosion

Grounding terminal

75 cm

Copperplate

WARNINg

WARNINg

Safety Instructions _ 3

BefoRe SeRvICINg

bull Donotsprinklewaterontothewashingmachinedirectlywhencleaningit4 Thismayresultinelectricshockorfireandmayshortentheproductlifetime

bull Donotplaceanycontainerswithwateronthewashingmachine4 IfthewaterisspilleditmayresultinelectricshockorfireThiswillalsoshortenthe

product lifetime

bull Donotinstallthewashingmachineinalocationexposedtosnoworrain4 Thismayresultinelectricshockorfireandshortentheproductlifetime

bull Donotpressacontrolbuttonusingasharptoolorobject4 Thismayresultinelectricshockordamagetotheproduct

WHILe SeRvICINg

bull Whenwiringaharnessmakesuretosealitcompletelysonoliquidcanenter4 Makesurethattheydonotbreakwhenforceisexerted

bull Checkifthereisanyresiduethatshowsthatliquidenteredtheelectricpartsorharnesses4 Ifanyliquidhasenteredintoapartreplaceitorcompletelyremoveanyremainingmoisturefromit

bull Ifyouneedtoplacethewashingmachineonitsbackforservicingpurposesplaceasupport(s)onthefloorandlayitdowncarefullysoitssideisonthefloor4 Do not lay it down on its front This may result in the inside tub damaging parts

CAuTIoN

CAuTIoN

4 _ Safety Instructions

AfTeR SeRvICINg

bull Checktheassembledstatusoftheparts4 NowisagoodtimetoinspectyourworkReviewallconnectionsandwiringincludingmountinghardware

bull Checktheinsulationresistance4 Disconnect the power cord from the power outlet and measure the insulation resistance between the power plug

andthegroundingwireofthewashingmachineThevaluemustbegreaterthan10MΩwhenmeasuredwitha500V DC Megger

bull Checkwhetherthewashingmachineislevelthefloorwithrespecttotheoriginalpositionof the washing machine prior to service By doing this now will reduce for the need of customer dissatisfaction and redo call 4 Vibrations can shorten the lifetime of the product

CAuTIoN

FeaturesandSpecifications_5

2 feATuReS AND SPeCIfICATIoNS

2-1 feATuReS

features Description

The Great Capacity bull EvenbulkygarmentsandblanketsgetsupercleanTheGreatcapacityleavesenoughroomforamorethoroughcleanerwash

AquaJetTM

bull AquaJettradewashesloadsgentlyandmorethoroughlythanconventionaltoploaders Sprayed water allows detergent to distribute evenly and penetrate fabricsfasteranddeeperAquaJettradedeliversimprovedcleanlinessandadvanced fabric care

DD Motor

bull ThepowertohandleanythingOurdirect-driveinvertermotordeliverspowerrighttothewashertubfromavariablespeedreversiblemotorBeltlessdirect-drivemotorgeneratesahigherspinspeedformoreeffectivequietoperationThewasheralsohasfewermovingpartsmeaningfewerrepairs

Mist Shower bull Aseparatenozzlehasbeenadoptedthatsprayswaterequallysothattherinse cycle is effective even with a small amount of water

VRTreg (VibrationReductionTechnology)

bull ThisSamsungwasherperformssmoothlyattopspinspeedsminimizingnoise and vibration

Eco Plus bull Ifyouselectthisoptionthewatertemperatureissettoslightlylowerthanduring the normal wash course to save energy

Self Clean(TubCleaningcycle)

bull CleanyourdrumwithonebuttonThisPureCycleisspeciallydesignedtoremovedetergentresidueampdirtbulidupinthetubwithouttheneedforspecial chemical detergents

EZ-Closed Lid bull Thedoorisdesignedtoclosesoftlyandpreventusersfrombeinginjured

My Cycle bull Thisisaconvenientfunctionthatenablesyoutosaveafrequently-used

washcourseOncethisissetyoucandoawashsimplybypressingthePowerMyCycleandStartbuttonsinthissequence

Smart Care bull SamsungrsquosSmartCareanautomaticCheck-monitoringsystemdetectsanddiagnosesproblemsatanearlystageandprovidesquickandeasysolutions

Prewash (WaterJetampBuilt-insink)

bull WaterJetandBuilt-insinkhelpyouhandwashbeforethewashingmachinestartsoperationWaterJetisavailableonlywhenthedoorisopenwiththe

waterlevelsettolessthanHighForprewashingusetheBuilt-insinkthatisdesigned to facilitate the hand-wash

6_FeaturesandSpecifications

2-2 SPeCIfICATIoNS

TyPe ToP LoADINg WASHeR

DIMENSION(Inchescm)

AHeight 439Prime1115cm

B Width 270Prime686cm

C Height with Door open 581Prime1476cm

D Depth 293Prime744cm

WATERPRESSURE 20~116psi(137~800kPa)

WEIGHT 640kg(1411lb)

CAPACITY 48cuft

POWER CONSUMPTION

WASHING 120V 700W

SPIN 120V 400W

DRAIN 120V 80W

SPINREVOLUTION 1100rpm

C

B

A

D

FeaturesandSpecifications_7

2-3 DeTAIL feATuReS

gradeWA48J7700AWA48J7770A

WA48H7400AW

Image

Main Spec

Capacity(DOE) 48 48

AquaJetTM Yes Yes

Smart Care Yes Yes

Diamond interior drum Yes Yes

Self Clean Yes Yes

Washing Cycles 11 11

Internal Heater - -

VRTreg Yes Yes

Pulsator material STS STS

Maxrpm(Maxspinspeed)

1100 1100

Mist Shower Yes Yes

Motor DD DD

Design

Color White Inox

Neat White

Main display 1888 1888

JogDial Chrome Chrome

LED color Ice-blue Ice-blue

Door Lid TC Transparent Glass Tempered Tinted glass

Easy door Yes Yes

Top Cover Steel(EGI)+Painting Steel(EGI)+Painting

energy

EstimatedYearlyOperating Cost (whenusedwithan electric water heater)

$15

EstimatedYearlyEnergy Cost (whenusedwithan electric water heater)

$17

EstimatedYearlyElectricityUse 129kWh EstimatedYearly

ElectricityUse 145kWh

EstimatedYearlyOperating Cost (whenusedwithanatural gas water heater)

$9

EstimatedYearlyEnergy Cost (whenusedwithanatural gas water heater)

$11

8_FeaturesandSpecifications

2-4 oPTIoNS SPeCIfICATIoNS

Item Item Name Code No Remark

HOSE-HANGER DC61-00224A Default

MANUAL-BOOK DC68-03132L Default

CABLETIE 6501-000121 Default

ASSYCAPVW DC97-18313A Default

ASSY-LEGSUPPORT DC97-14095A Service

Notebull CustomercanpurchaseWatersupplydrainhosesandassylegsupportfromaservicecenter

Disassembly and Reassembly _ 9

3 DISASSeMBLy AND ReASSeMBLy

3-1 TooLS foR DISASSeMBLy AND ReASSeMBLy

Tool Type Remarks

Boxdriver10mm17mm

Tub(16)Fixerscrew(5)Motor(1)Balance(5)Damper(2)Damper(friction1)

Double-ended spanner

10mm17mm

ReplacedbyboxdriverLeg

Vice pliersAToolforprotectingemptyturningofboltorabrasionfromusingboxdriverFor disassembly of Spin drum

Others(screwdrivernipperlongnosepliers)

Common tools for servicing

JIGfortheASSYSPINBASKET

10 _ Disassembly and Reassembly

3-2 STANDARD DISASSeMBLy DRAWINgS Thisisastandarddisassemblydiagramandmaydifferfromtheactualproduct

Usethismaterialasareferencewhendisassemblingandreassemblingtheproduct

Part figure Description

Sub and Main PCB Assembly

1 Remove the 6 screws holding the control panel assembly

2 Separatethebothhooks(LeftandRight)3 Separate the cover panel upward

Ifitisdifficulttodisassembleusethe(-)drivertodisassemblehooks (Becarefuldamageofhooks)

4 Remove the 2 screws holding the control panel assembly and turn the panel over

5 PulltheEncoder-Knobtoseparateitandthenremovethe4fixingscrews WhenreassemblingthePCBtakecarethat you do not damage the control-panel fixinghookAfterreplacingthesubPCBcheckthekeyoperation

6 Separatethecoverpcb(m)andthewiresconnectedtothemainPBA Afterreassemblingthehousingcheckif the wires are properly connected When disassembling and reassembling thehousingtakecarethatyoudonotdamage the part

Disassembly and Reassembly _ 11

Part figure Description

Water valve

1 Afterseparatingthecontrolpanelseparatethe water-valve housing

2 Removethe3fixingscrews

3 Remove the wire-harness and release the 2 clamps connecting the hoses Whenreleasingtheclampstakecarethat you do not tear the hoses

12 _ Disassembly and Reassembly

Part figure Description

Door Assembly1 Remove the 2 inlay tapes 2 Remove the 4 screws holding the door

lid TC and separate the door

Disassembly and Reassembly _ 13

Part figure Description

Top Cover Assembly Door Switch

1 Remove the 2 screws from the cover plate

2 Separate the control panel assembly

3 SeparatetheAssyValveWaterthemainPBAtheAssySensorPressureandthefilterEMIhousing

Separate the housing to prevent stress and damage to the wire-harness

4 SeparatethemainwireharnessthepressureswitchhoseclipGroundingscrew

5 Release the bleach hose clamp

6 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

7 youcancheckthedoorswitchIfturntheTop cover upside down

Sensor Pressure Switch

1 Disassemble the control panel assembly2 Separate the pressure switch housing

3 Beforeseparatingthehosereleasetheclip Whenreleasingthecliptakecarethat you do not tear the hose

14 _ Disassembly and Reassembly

Part figure Description

Drain-Pump

1 Separatethebackcover2 Separate 2 clamps3 Remove the 13 screws in base4 Remove the 3 screws5screwsareseparatedbylsquo+rsquoshapehand

driver

Thermistor 1 Remove the 2 screws

Disassembly and Reassembly _ 15

Part figure Description

Clutch Assembly (continued)

1 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

2 Remove the 2 screws holding the panel control Separate all the wires connected to the housing

3 Removethe4screwsfixingthetub-cover and separate the tub-cover

4 Separate the pulsator-cap by inserting thetipofa(-)screwdriverbetweenthepulsator-cap and the pulsator and then liftingthescrewdriverup(uarr)

5 Remove the bolt holding the pulsator with a 10mm wrench

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

2 _ Safety Instructions

WHILe SeRvICINg

bull Checkifthepowerplugandoutletaredamagedflattenedcutorotherwisedegraded4 Iffaultyreplaceitimmediately

Failingtodosomayresultinelectricshockorfire

bull Completelyremoveanydustorforeignmaterialfromthehousingwiringandconnectionparts4 Thiswillpreventariskoffireduetotrackingandelectricalhazard

bull Whenconnectingwiresmakesuretoconnectthemusingtherelevantconnectorsandcheckthattheyarecompletely properly4 Iftapeisusedinsteadoftheconnectorsitmaycausefireduetotracking

bull MakesuretodischargethePBApowerterminalsbeforestartingtheservice4 Failingtodosomayresultinahighvoltageelectricshock

bull Whenreplacingtheheatermakesuretofastenthenutafterensuringthatitisinsertedintothebracket-heater4 Ifnotinsertedintothebracket-heaterittouchesthedrumandcausesnoiseandelectricleakage

AfTeR SeRvICINg

bull Checkthewiring4 Ensure that no wire touches a rotating part or a sharpened part of the electrical harness

bull Checkforanywaterleakage4 Performatestrunforthewashingmachineusingthestandardcourseandcheckwhetherthereisanywater

leakagethroughthefloorsectionorthepipes

bull Donotallowconsumerstorepairorserviceanypartofthewashingmachinethemselves4 This may result in personal injury and shorten the product lifetime

bull Ifitseemsthatgroundingisneededduetowaterormoisturemakesuretorungrounding wires (Checkthegroundingofthepoweroutletandadditionallygroundittoametallicwaterpipe)4 Failingtodosomayresultinelectricshockduetoelectricleakage

[Running a grounding wire]- Twistagroundingwire(copperwire)twoorthreetimesaroundthetap- Ifyouconnectthegroundingwiretoacopperplateburyit75cmundertheearthina

place with a lot of moisture DonotconnectthegroundingwiretoagaspipeplasticwaterpipeortelephonewireThereisariskofelectricshockorexplosion

Grounding terminal

75 cm

Copperplate

WARNINg

WARNINg

Safety Instructions _ 3

BefoRe SeRvICINg

bull Donotsprinklewaterontothewashingmachinedirectlywhencleaningit4 Thismayresultinelectricshockorfireandmayshortentheproductlifetime

bull Donotplaceanycontainerswithwateronthewashingmachine4 IfthewaterisspilleditmayresultinelectricshockorfireThiswillalsoshortenthe

product lifetime

bull Donotinstallthewashingmachineinalocationexposedtosnoworrain4 Thismayresultinelectricshockorfireandshortentheproductlifetime

bull Donotpressacontrolbuttonusingasharptoolorobject4 Thismayresultinelectricshockordamagetotheproduct

WHILe SeRvICINg

bull Whenwiringaharnessmakesuretosealitcompletelysonoliquidcanenter4 Makesurethattheydonotbreakwhenforceisexerted

bull Checkifthereisanyresiduethatshowsthatliquidenteredtheelectricpartsorharnesses4 Ifanyliquidhasenteredintoapartreplaceitorcompletelyremoveanyremainingmoisturefromit

bull Ifyouneedtoplacethewashingmachineonitsbackforservicingpurposesplaceasupport(s)onthefloorandlayitdowncarefullysoitssideisonthefloor4 Do not lay it down on its front This may result in the inside tub damaging parts

CAuTIoN

CAuTIoN

4 _ Safety Instructions

AfTeR SeRvICINg

bull Checktheassembledstatusoftheparts4 NowisagoodtimetoinspectyourworkReviewallconnectionsandwiringincludingmountinghardware

bull Checktheinsulationresistance4 Disconnect the power cord from the power outlet and measure the insulation resistance between the power plug

andthegroundingwireofthewashingmachineThevaluemustbegreaterthan10MΩwhenmeasuredwitha500V DC Megger

bull Checkwhetherthewashingmachineislevelthefloorwithrespecttotheoriginalpositionof the washing machine prior to service By doing this now will reduce for the need of customer dissatisfaction and redo call 4 Vibrations can shorten the lifetime of the product

CAuTIoN

FeaturesandSpecifications_5

2 feATuReS AND SPeCIfICATIoNS

2-1 feATuReS

features Description

The Great Capacity bull EvenbulkygarmentsandblanketsgetsupercleanTheGreatcapacityleavesenoughroomforamorethoroughcleanerwash

AquaJetTM

bull AquaJettradewashesloadsgentlyandmorethoroughlythanconventionaltoploaders Sprayed water allows detergent to distribute evenly and penetrate fabricsfasteranddeeperAquaJettradedeliversimprovedcleanlinessandadvanced fabric care

DD Motor

bull ThepowertohandleanythingOurdirect-driveinvertermotordeliverspowerrighttothewashertubfromavariablespeedreversiblemotorBeltlessdirect-drivemotorgeneratesahigherspinspeedformoreeffectivequietoperationThewasheralsohasfewermovingpartsmeaningfewerrepairs

Mist Shower bull Aseparatenozzlehasbeenadoptedthatsprayswaterequallysothattherinse cycle is effective even with a small amount of water

VRTreg (VibrationReductionTechnology)

bull ThisSamsungwasherperformssmoothlyattopspinspeedsminimizingnoise and vibration

Eco Plus bull Ifyouselectthisoptionthewatertemperatureissettoslightlylowerthanduring the normal wash course to save energy

Self Clean(TubCleaningcycle)

bull CleanyourdrumwithonebuttonThisPureCycleisspeciallydesignedtoremovedetergentresidueampdirtbulidupinthetubwithouttheneedforspecial chemical detergents

EZ-Closed Lid bull Thedoorisdesignedtoclosesoftlyandpreventusersfrombeinginjured

My Cycle bull Thisisaconvenientfunctionthatenablesyoutosaveafrequently-used

washcourseOncethisissetyoucandoawashsimplybypressingthePowerMyCycleandStartbuttonsinthissequence

Smart Care bull SamsungrsquosSmartCareanautomaticCheck-monitoringsystemdetectsanddiagnosesproblemsatanearlystageandprovidesquickandeasysolutions

Prewash (WaterJetampBuilt-insink)

bull WaterJetandBuilt-insinkhelpyouhandwashbeforethewashingmachinestartsoperationWaterJetisavailableonlywhenthedoorisopenwiththe

waterlevelsettolessthanHighForprewashingusetheBuilt-insinkthatisdesigned to facilitate the hand-wash

6_FeaturesandSpecifications

2-2 SPeCIfICATIoNS

TyPe ToP LoADINg WASHeR

DIMENSION(Inchescm)

AHeight 439Prime1115cm

B Width 270Prime686cm

C Height with Door open 581Prime1476cm

D Depth 293Prime744cm

WATERPRESSURE 20~116psi(137~800kPa)

WEIGHT 640kg(1411lb)

CAPACITY 48cuft

POWER CONSUMPTION

WASHING 120V 700W

SPIN 120V 400W

DRAIN 120V 80W

SPINREVOLUTION 1100rpm

C

B

A

D

FeaturesandSpecifications_7

2-3 DeTAIL feATuReS

gradeWA48J7700AWA48J7770A

WA48H7400AW

Image

Main Spec

Capacity(DOE) 48 48

AquaJetTM Yes Yes

Smart Care Yes Yes

Diamond interior drum Yes Yes

Self Clean Yes Yes

Washing Cycles 11 11

Internal Heater - -

VRTreg Yes Yes

Pulsator material STS STS

Maxrpm(Maxspinspeed)

1100 1100

Mist Shower Yes Yes

Motor DD DD

Design

Color White Inox

Neat White

Main display 1888 1888

JogDial Chrome Chrome

LED color Ice-blue Ice-blue

Door Lid TC Transparent Glass Tempered Tinted glass

Easy door Yes Yes

Top Cover Steel(EGI)+Painting Steel(EGI)+Painting

energy

EstimatedYearlyOperating Cost (whenusedwithan electric water heater)

$15

EstimatedYearlyEnergy Cost (whenusedwithan electric water heater)

$17

EstimatedYearlyElectricityUse 129kWh EstimatedYearly

ElectricityUse 145kWh

EstimatedYearlyOperating Cost (whenusedwithanatural gas water heater)

$9

EstimatedYearlyEnergy Cost (whenusedwithanatural gas water heater)

$11

8_FeaturesandSpecifications

2-4 oPTIoNS SPeCIfICATIoNS

Item Item Name Code No Remark

HOSE-HANGER DC61-00224A Default

MANUAL-BOOK DC68-03132L Default

CABLETIE 6501-000121 Default

ASSYCAPVW DC97-18313A Default

ASSY-LEGSUPPORT DC97-14095A Service

Notebull CustomercanpurchaseWatersupplydrainhosesandassylegsupportfromaservicecenter

Disassembly and Reassembly _ 9

3 DISASSeMBLy AND ReASSeMBLy

3-1 TooLS foR DISASSeMBLy AND ReASSeMBLy

Tool Type Remarks

Boxdriver10mm17mm

Tub(16)Fixerscrew(5)Motor(1)Balance(5)Damper(2)Damper(friction1)

Double-ended spanner

10mm17mm

ReplacedbyboxdriverLeg

Vice pliersAToolforprotectingemptyturningofboltorabrasionfromusingboxdriverFor disassembly of Spin drum

Others(screwdrivernipperlongnosepliers)

Common tools for servicing

JIGfortheASSYSPINBASKET

10 _ Disassembly and Reassembly

3-2 STANDARD DISASSeMBLy DRAWINgS Thisisastandarddisassemblydiagramandmaydifferfromtheactualproduct

Usethismaterialasareferencewhendisassemblingandreassemblingtheproduct

Part figure Description

Sub and Main PCB Assembly

1 Remove the 6 screws holding the control panel assembly

2 Separatethebothhooks(LeftandRight)3 Separate the cover panel upward

Ifitisdifficulttodisassembleusethe(-)drivertodisassemblehooks (Becarefuldamageofhooks)

4 Remove the 2 screws holding the control panel assembly and turn the panel over

5 PulltheEncoder-Knobtoseparateitandthenremovethe4fixingscrews WhenreassemblingthePCBtakecarethat you do not damage the control-panel fixinghookAfterreplacingthesubPCBcheckthekeyoperation

6 Separatethecoverpcb(m)andthewiresconnectedtothemainPBA Afterreassemblingthehousingcheckif the wires are properly connected When disassembling and reassembling thehousingtakecarethatyoudonotdamage the part

Disassembly and Reassembly _ 11

Part figure Description

Water valve

1 Afterseparatingthecontrolpanelseparatethe water-valve housing

2 Removethe3fixingscrews

3 Remove the wire-harness and release the 2 clamps connecting the hoses Whenreleasingtheclampstakecarethat you do not tear the hoses

12 _ Disassembly and Reassembly

Part figure Description

Door Assembly1 Remove the 2 inlay tapes 2 Remove the 4 screws holding the door

lid TC and separate the door

Disassembly and Reassembly _ 13

Part figure Description

Top Cover Assembly Door Switch

1 Remove the 2 screws from the cover plate

2 Separate the control panel assembly

3 SeparatetheAssyValveWaterthemainPBAtheAssySensorPressureandthefilterEMIhousing

Separate the housing to prevent stress and damage to the wire-harness

4 SeparatethemainwireharnessthepressureswitchhoseclipGroundingscrew

5 Release the bleach hose clamp

6 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

7 youcancheckthedoorswitchIfturntheTop cover upside down

Sensor Pressure Switch

1 Disassemble the control panel assembly2 Separate the pressure switch housing

3 Beforeseparatingthehosereleasetheclip Whenreleasingthecliptakecarethat you do not tear the hose

14 _ Disassembly and Reassembly

Part figure Description

Drain-Pump

1 Separatethebackcover2 Separate 2 clamps3 Remove the 13 screws in base4 Remove the 3 screws5screwsareseparatedbylsquo+rsquoshapehand

driver

Thermistor 1 Remove the 2 screws

Disassembly and Reassembly _ 15

Part figure Description

Clutch Assembly (continued)

1 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

2 Remove the 2 screws holding the panel control Separate all the wires connected to the housing

3 Removethe4screwsfixingthetub-cover and separate the tub-cover

4 Separate the pulsator-cap by inserting thetipofa(-)screwdriverbetweenthepulsator-cap and the pulsator and then liftingthescrewdriverup(uarr)

5 Remove the bolt holding the pulsator with a 10mm wrench

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

Safety Instructions _ 3

BefoRe SeRvICINg

bull Donotsprinklewaterontothewashingmachinedirectlywhencleaningit4 Thismayresultinelectricshockorfireandmayshortentheproductlifetime

bull Donotplaceanycontainerswithwateronthewashingmachine4 IfthewaterisspilleditmayresultinelectricshockorfireThiswillalsoshortenthe

product lifetime

bull Donotinstallthewashingmachineinalocationexposedtosnoworrain4 Thismayresultinelectricshockorfireandshortentheproductlifetime

bull Donotpressacontrolbuttonusingasharptoolorobject4 Thismayresultinelectricshockordamagetotheproduct

WHILe SeRvICINg

bull Whenwiringaharnessmakesuretosealitcompletelysonoliquidcanenter4 Makesurethattheydonotbreakwhenforceisexerted

bull Checkifthereisanyresiduethatshowsthatliquidenteredtheelectricpartsorharnesses4 Ifanyliquidhasenteredintoapartreplaceitorcompletelyremoveanyremainingmoisturefromit

bull Ifyouneedtoplacethewashingmachineonitsbackforservicingpurposesplaceasupport(s)onthefloorandlayitdowncarefullysoitssideisonthefloor4 Do not lay it down on its front This may result in the inside tub damaging parts

CAuTIoN

CAuTIoN

4 _ Safety Instructions

AfTeR SeRvICINg

bull Checktheassembledstatusoftheparts4 NowisagoodtimetoinspectyourworkReviewallconnectionsandwiringincludingmountinghardware

bull Checktheinsulationresistance4 Disconnect the power cord from the power outlet and measure the insulation resistance between the power plug

andthegroundingwireofthewashingmachineThevaluemustbegreaterthan10MΩwhenmeasuredwitha500V DC Megger

bull Checkwhetherthewashingmachineislevelthefloorwithrespecttotheoriginalpositionof the washing machine prior to service By doing this now will reduce for the need of customer dissatisfaction and redo call 4 Vibrations can shorten the lifetime of the product

CAuTIoN

FeaturesandSpecifications_5

2 feATuReS AND SPeCIfICATIoNS

2-1 feATuReS

features Description

The Great Capacity bull EvenbulkygarmentsandblanketsgetsupercleanTheGreatcapacityleavesenoughroomforamorethoroughcleanerwash

AquaJetTM

bull AquaJettradewashesloadsgentlyandmorethoroughlythanconventionaltoploaders Sprayed water allows detergent to distribute evenly and penetrate fabricsfasteranddeeperAquaJettradedeliversimprovedcleanlinessandadvanced fabric care

DD Motor

bull ThepowertohandleanythingOurdirect-driveinvertermotordeliverspowerrighttothewashertubfromavariablespeedreversiblemotorBeltlessdirect-drivemotorgeneratesahigherspinspeedformoreeffectivequietoperationThewasheralsohasfewermovingpartsmeaningfewerrepairs

Mist Shower bull Aseparatenozzlehasbeenadoptedthatsprayswaterequallysothattherinse cycle is effective even with a small amount of water

VRTreg (VibrationReductionTechnology)

bull ThisSamsungwasherperformssmoothlyattopspinspeedsminimizingnoise and vibration

Eco Plus bull Ifyouselectthisoptionthewatertemperatureissettoslightlylowerthanduring the normal wash course to save energy

Self Clean(TubCleaningcycle)

bull CleanyourdrumwithonebuttonThisPureCycleisspeciallydesignedtoremovedetergentresidueampdirtbulidupinthetubwithouttheneedforspecial chemical detergents

EZ-Closed Lid bull Thedoorisdesignedtoclosesoftlyandpreventusersfrombeinginjured

My Cycle bull Thisisaconvenientfunctionthatenablesyoutosaveafrequently-used

washcourseOncethisissetyoucandoawashsimplybypressingthePowerMyCycleandStartbuttonsinthissequence

Smart Care bull SamsungrsquosSmartCareanautomaticCheck-monitoringsystemdetectsanddiagnosesproblemsatanearlystageandprovidesquickandeasysolutions

Prewash (WaterJetampBuilt-insink)

bull WaterJetandBuilt-insinkhelpyouhandwashbeforethewashingmachinestartsoperationWaterJetisavailableonlywhenthedoorisopenwiththe

waterlevelsettolessthanHighForprewashingusetheBuilt-insinkthatisdesigned to facilitate the hand-wash

6_FeaturesandSpecifications

2-2 SPeCIfICATIoNS

TyPe ToP LoADINg WASHeR

DIMENSION(Inchescm)

AHeight 439Prime1115cm

B Width 270Prime686cm

C Height with Door open 581Prime1476cm

D Depth 293Prime744cm

WATERPRESSURE 20~116psi(137~800kPa)

WEIGHT 640kg(1411lb)

CAPACITY 48cuft

POWER CONSUMPTION

WASHING 120V 700W

SPIN 120V 400W

DRAIN 120V 80W

SPINREVOLUTION 1100rpm

C

B

A

D

FeaturesandSpecifications_7

2-3 DeTAIL feATuReS

gradeWA48J7700AWA48J7770A

WA48H7400AW

Image

Main Spec

Capacity(DOE) 48 48

AquaJetTM Yes Yes

Smart Care Yes Yes

Diamond interior drum Yes Yes

Self Clean Yes Yes

Washing Cycles 11 11

Internal Heater - -

VRTreg Yes Yes

Pulsator material STS STS

Maxrpm(Maxspinspeed)

1100 1100

Mist Shower Yes Yes

Motor DD DD

Design

Color White Inox

Neat White

Main display 1888 1888

JogDial Chrome Chrome

LED color Ice-blue Ice-blue

Door Lid TC Transparent Glass Tempered Tinted glass

Easy door Yes Yes

Top Cover Steel(EGI)+Painting Steel(EGI)+Painting

energy

EstimatedYearlyOperating Cost (whenusedwithan electric water heater)

$15

EstimatedYearlyEnergy Cost (whenusedwithan electric water heater)

$17

EstimatedYearlyElectricityUse 129kWh EstimatedYearly

ElectricityUse 145kWh

EstimatedYearlyOperating Cost (whenusedwithanatural gas water heater)

$9

EstimatedYearlyEnergy Cost (whenusedwithanatural gas water heater)

$11

8_FeaturesandSpecifications

2-4 oPTIoNS SPeCIfICATIoNS

Item Item Name Code No Remark

HOSE-HANGER DC61-00224A Default

MANUAL-BOOK DC68-03132L Default

CABLETIE 6501-000121 Default

ASSYCAPVW DC97-18313A Default

ASSY-LEGSUPPORT DC97-14095A Service

Notebull CustomercanpurchaseWatersupplydrainhosesandassylegsupportfromaservicecenter

Disassembly and Reassembly _ 9

3 DISASSeMBLy AND ReASSeMBLy

3-1 TooLS foR DISASSeMBLy AND ReASSeMBLy

Tool Type Remarks

Boxdriver10mm17mm

Tub(16)Fixerscrew(5)Motor(1)Balance(5)Damper(2)Damper(friction1)

Double-ended spanner

10mm17mm

ReplacedbyboxdriverLeg

Vice pliersAToolforprotectingemptyturningofboltorabrasionfromusingboxdriverFor disassembly of Spin drum

Others(screwdrivernipperlongnosepliers)

Common tools for servicing

JIGfortheASSYSPINBASKET

10 _ Disassembly and Reassembly

3-2 STANDARD DISASSeMBLy DRAWINgS Thisisastandarddisassemblydiagramandmaydifferfromtheactualproduct

Usethismaterialasareferencewhendisassemblingandreassemblingtheproduct

Part figure Description

Sub and Main PCB Assembly

1 Remove the 6 screws holding the control panel assembly

2 Separatethebothhooks(LeftandRight)3 Separate the cover panel upward

Ifitisdifficulttodisassembleusethe(-)drivertodisassemblehooks (Becarefuldamageofhooks)

4 Remove the 2 screws holding the control panel assembly and turn the panel over

5 PulltheEncoder-Knobtoseparateitandthenremovethe4fixingscrews WhenreassemblingthePCBtakecarethat you do not damage the control-panel fixinghookAfterreplacingthesubPCBcheckthekeyoperation

6 Separatethecoverpcb(m)andthewiresconnectedtothemainPBA Afterreassemblingthehousingcheckif the wires are properly connected When disassembling and reassembling thehousingtakecarethatyoudonotdamage the part

Disassembly and Reassembly _ 11

Part figure Description

Water valve

1 Afterseparatingthecontrolpanelseparatethe water-valve housing

2 Removethe3fixingscrews

3 Remove the wire-harness and release the 2 clamps connecting the hoses Whenreleasingtheclampstakecarethat you do not tear the hoses

12 _ Disassembly and Reassembly

Part figure Description

Door Assembly1 Remove the 2 inlay tapes 2 Remove the 4 screws holding the door

lid TC and separate the door

Disassembly and Reassembly _ 13

Part figure Description

Top Cover Assembly Door Switch

1 Remove the 2 screws from the cover plate

2 Separate the control panel assembly

3 SeparatetheAssyValveWaterthemainPBAtheAssySensorPressureandthefilterEMIhousing

Separate the housing to prevent stress and damage to the wire-harness

4 SeparatethemainwireharnessthepressureswitchhoseclipGroundingscrew

5 Release the bleach hose clamp

6 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

7 youcancheckthedoorswitchIfturntheTop cover upside down

Sensor Pressure Switch

1 Disassemble the control panel assembly2 Separate the pressure switch housing

3 Beforeseparatingthehosereleasetheclip Whenreleasingthecliptakecarethat you do not tear the hose

14 _ Disassembly and Reassembly

Part figure Description

Drain-Pump

1 Separatethebackcover2 Separate 2 clamps3 Remove the 13 screws in base4 Remove the 3 screws5screwsareseparatedbylsquo+rsquoshapehand

driver

Thermistor 1 Remove the 2 screws

Disassembly and Reassembly _ 15

Part figure Description

Clutch Assembly (continued)

1 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

2 Remove the 2 screws holding the panel control Separate all the wires connected to the housing

3 Removethe4screwsfixingthetub-cover and separate the tub-cover

4 Separate the pulsator-cap by inserting thetipofa(-)screwdriverbetweenthepulsator-cap and the pulsator and then liftingthescrewdriverup(uarr)

5 Remove the bolt holding the pulsator with a 10mm wrench

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

4 _ Safety Instructions

AfTeR SeRvICINg

bull Checktheassembledstatusoftheparts4 NowisagoodtimetoinspectyourworkReviewallconnectionsandwiringincludingmountinghardware

bull Checktheinsulationresistance4 Disconnect the power cord from the power outlet and measure the insulation resistance between the power plug

andthegroundingwireofthewashingmachineThevaluemustbegreaterthan10MΩwhenmeasuredwitha500V DC Megger

bull Checkwhetherthewashingmachineislevelthefloorwithrespecttotheoriginalpositionof the washing machine prior to service By doing this now will reduce for the need of customer dissatisfaction and redo call 4 Vibrations can shorten the lifetime of the product

CAuTIoN

FeaturesandSpecifications_5

2 feATuReS AND SPeCIfICATIoNS

2-1 feATuReS

features Description

The Great Capacity bull EvenbulkygarmentsandblanketsgetsupercleanTheGreatcapacityleavesenoughroomforamorethoroughcleanerwash

AquaJetTM

bull AquaJettradewashesloadsgentlyandmorethoroughlythanconventionaltoploaders Sprayed water allows detergent to distribute evenly and penetrate fabricsfasteranddeeperAquaJettradedeliversimprovedcleanlinessandadvanced fabric care

DD Motor

bull ThepowertohandleanythingOurdirect-driveinvertermotordeliverspowerrighttothewashertubfromavariablespeedreversiblemotorBeltlessdirect-drivemotorgeneratesahigherspinspeedformoreeffectivequietoperationThewasheralsohasfewermovingpartsmeaningfewerrepairs

Mist Shower bull Aseparatenozzlehasbeenadoptedthatsprayswaterequallysothattherinse cycle is effective even with a small amount of water

VRTreg (VibrationReductionTechnology)

bull ThisSamsungwasherperformssmoothlyattopspinspeedsminimizingnoise and vibration

Eco Plus bull Ifyouselectthisoptionthewatertemperatureissettoslightlylowerthanduring the normal wash course to save energy

Self Clean(TubCleaningcycle)

bull CleanyourdrumwithonebuttonThisPureCycleisspeciallydesignedtoremovedetergentresidueampdirtbulidupinthetubwithouttheneedforspecial chemical detergents

EZ-Closed Lid bull Thedoorisdesignedtoclosesoftlyandpreventusersfrombeinginjured

My Cycle bull Thisisaconvenientfunctionthatenablesyoutosaveafrequently-used

washcourseOncethisissetyoucandoawashsimplybypressingthePowerMyCycleandStartbuttonsinthissequence

Smart Care bull SamsungrsquosSmartCareanautomaticCheck-monitoringsystemdetectsanddiagnosesproblemsatanearlystageandprovidesquickandeasysolutions

Prewash (WaterJetampBuilt-insink)

bull WaterJetandBuilt-insinkhelpyouhandwashbeforethewashingmachinestartsoperationWaterJetisavailableonlywhenthedoorisopenwiththe

waterlevelsettolessthanHighForprewashingusetheBuilt-insinkthatisdesigned to facilitate the hand-wash

6_FeaturesandSpecifications

2-2 SPeCIfICATIoNS

TyPe ToP LoADINg WASHeR

DIMENSION(Inchescm)

AHeight 439Prime1115cm

B Width 270Prime686cm

C Height with Door open 581Prime1476cm

D Depth 293Prime744cm

WATERPRESSURE 20~116psi(137~800kPa)

WEIGHT 640kg(1411lb)

CAPACITY 48cuft

POWER CONSUMPTION

WASHING 120V 700W

SPIN 120V 400W

DRAIN 120V 80W

SPINREVOLUTION 1100rpm

C

B

A

D

FeaturesandSpecifications_7

2-3 DeTAIL feATuReS

gradeWA48J7700AWA48J7770A

WA48H7400AW

Image

Main Spec

Capacity(DOE) 48 48

AquaJetTM Yes Yes

Smart Care Yes Yes

Diamond interior drum Yes Yes

Self Clean Yes Yes

Washing Cycles 11 11

Internal Heater - -

VRTreg Yes Yes

Pulsator material STS STS

Maxrpm(Maxspinspeed)

1100 1100

Mist Shower Yes Yes

Motor DD DD

Design

Color White Inox

Neat White

Main display 1888 1888

JogDial Chrome Chrome

LED color Ice-blue Ice-blue

Door Lid TC Transparent Glass Tempered Tinted glass

Easy door Yes Yes

Top Cover Steel(EGI)+Painting Steel(EGI)+Painting

energy

EstimatedYearlyOperating Cost (whenusedwithan electric water heater)

$15

EstimatedYearlyEnergy Cost (whenusedwithan electric water heater)

$17

EstimatedYearlyElectricityUse 129kWh EstimatedYearly

ElectricityUse 145kWh

EstimatedYearlyOperating Cost (whenusedwithanatural gas water heater)

$9

EstimatedYearlyEnergy Cost (whenusedwithanatural gas water heater)

$11

8_FeaturesandSpecifications

2-4 oPTIoNS SPeCIfICATIoNS

Item Item Name Code No Remark

HOSE-HANGER DC61-00224A Default

MANUAL-BOOK DC68-03132L Default

CABLETIE 6501-000121 Default

ASSYCAPVW DC97-18313A Default

ASSY-LEGSUPPORT DC97-14095A Service

Notebull CustomercanpurchaseWatersupplydrainhosesandassylegsupportfromaservicecenter

Disassembly and Reassembly _ 9

3 DISASSeMBLy AND ReASSeMBLy

3-1 TooLS foR DISASSeMBLy AND ReASSeMBLy

Tool Type Remarks

Boxdriver10mm17mm

Tub(16)Fixerscrew(5)Motor(1)Balance(5)Damper(2)Damper(friction1)

Double-ended spanner

10mm17mm

ReplacedbyboxdriverLeg

Vice pliersAToolforprotectingemptyturningofboltorabrasionfromusingboxdriverFor disassembly of Spin drum

Others(screwdrivernipperlongnosepliers)

Common tools for servicing

JIGfortheASSYSPINBASKET

10 _ Disassembly and Reassembly

3-2 STANDARD DISASSeMBLy DRAWINgS Thisisastandarddisassemblydiagramandmaydifferfromtheactualproduct

Usethismaterialasareferencewhendisassemblingandreassemblingtheproduct

Part figure Description

Sub and Main PCB Assembly

1 Remove the 6 screws holding the control panel assembly

2 Separatethebothhooks(LeftandRight)3 Separate the cover panel upward

Ifitisdifficulttodisassembleusethe(-)drivertodisassemblehooks (Becarefuldamageofhooks)

4 Remove the 2 screws holding the control panel assembly and turn the panel over

5 PulltheEncoder-Knobtoseparateitandthenremovethe4fixingscrews WhenreassemblingthePCBtakecarethat you do not damage the control-panel fixinghookAfterreplacingthesubPCBcheckthekeyoperation

6 Separatethecoverpcb(m)andthewiresconnectedtothemainPBA Afterreassemblingthehousingcheckif the wires are properly connected When disassembling and reassembling thehousingtakecarethatyoudonotdamage the part

Disassembly and Reassembly _ 11

Part figure Description

Water valve

1 Afterseparatingthecontrolpanelseparatethe water-valve housing

2 Removethe3fixingscrews

3 Remove the wire-harness and release the 2 clamps connecting the hoses Whenreleasingtheclampstakecarethat you do not tear the hoses

12 _ Disassembly and Reassembly

Part figure Description

Door Assembly1 Remove the 2 inlay tapes 2 Remove the 4 screws holding the door

lid TC and separate the door

Disassembly and Reassembly _ 13

Part figure Description

Top Cover Assembly Door Switch

1 Remove the 2 screws from the cover plate

2 Separate the control panel assembly

3 SeparatetheAssyValveWaterthemainPBAtheAssySensorPressureandthefilterEMIhousing

Separate the housing to prevent stress and damage to the wire-harness

4 SeparatethemainwireharnessthepressureswitchhoseclipGroundingscrew

5 Release the bleach hose clamp

6 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

7 youcancheckthedoorswitchIfturntheTop cover upside down

Sensor Pressure Switch

1 Disassemble the control panel assembly2 Separate the pressure switch housing

3 Beforeseparatingthehosereleasetheclip Whenreleasingthecliptakecarethat you do not tear the hose

14 _ Disassembly and Reassembly

Part figure Description

Drain-Pump

1 Separatethebackcover2 Separate 2 clamps3 Remove the 13 screws in base4 Remove the 3 screws5screwsareseparatedbylsquo+rsquoshapehand

driver

Thermistor 1 Remove the 2 screws

Disassembly and Reassembly _ 15

Part figure Description

Clutch Assembly (continued)

1 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

2 Remove the 2 screws holding the panel control Separate all the wires connected to the housing

3 Removethe4screwsfixingthetub-cover and separate the tub-cover

4 Separate the pulsator-cap by inserting thetipofa(-)screwdriverbetweenthepulsator-cap and the pulsator and then liftingthescrewdriverup(uarr)

5 Remove the bolt holding the pulsator with a 10mm wrench

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

FeaturesandSpecifications_5

2 feATuReS AND SPeCIfICATIoNS

2-1 feATuReS

features Description

The Great Capacity bull EvenbulkygarmentsandblanketsgetsupercleanTheGreatcapacityleavesenoughroomforamorethoroughcleanerwash

AquaJetTM

bull AquaJettradewashesloadsgentlyandmorethoroughlythanconventionaltoploaders Sprayed water allows detergent to distribute evenly and penetrate fabricsfasteranddeeperAquaJettradedeliversimprovedcleanlinessandadvanced fabric care

DD Motor

bull ThepowertohandleanythingOurdirect-driveinvertermotordeliverspowerrighttothewashertubfromavariablespeedreversiblemotorBeltlessdirect-drivemotorgeneratesahigherspinspeedformoreeffectivequietoperationThewasheralsohasfewermovingpartsmeaningfewerrepairs

Mist Shower bull Aseparatenozzlehasbeenadoptedthatsprayswaterequallysothattherinse cycle is effective even with a small amount of water

VRTreg (VibrationReductionTechnology)

bull ThisSamsungwasherperformssmoothlyattopspinspeedsminimizingnoise and vibration

Eco Plus bull Ifyouselectthisoptionthewatertemperatureissettoslightlylowerthanduring the normal wash course to save energy

Self Clean(TubCleaningcycle)

bull CleanyourdrumwithonebuttonThisPureCycleisspeciallydesignedtoremovedetergentresidueampdirtbulidupinthetubwithouttheneedforspecial chemical detergents

EZ-Closed Lid bull Thedoorisdesignedtoclosesoftlyandpreventusersfrombeinginjured

My Cycle bull Thisisaconvenientfunctionthatenablesyoutosaveafrequently-used

washcourseOncethisissetyoucandoawashsimplybypressingthePowerMyCycleandStartbuttonsinthissequence

Smart Care bull SamsungrsquosSmartCareanautomaticCheck-monitoringsystemdetectsanddiagnosesproblemsatanearlystageandprovidesquickandeasysolutions

Prewash (WaterJetampBuilt-insink)

bull WaterJetandBuilt-insinkhelpyouhandwashbeforethewashingmachinestartsoperationWaterJetisavailableonlywhenthedoorisopenwiththe

waterlevelsettolessthanHighForprewashingusetheBuilt-insinkthatisdesigned to facilitate the hand-wash

6_FeaturesandSpecifications

2-2 SPeCIfICATIoNS

TyPe ToP LoADINg WASHeR

DIMENSION(Inchescm)

AHeight 439Prime1115cm

B Width 270Prime686cm

C Height with Door open 581Prime1476cm

D Depth 293Prime744cm

WATERPRESSURE 20~116psi(137~800kPa)

WEIGHT 640kg(1411lb)

CAPACITY 48cuft

POWER CONSUMPTION

WASHING 120V 700W

SPIN 120V 400W

DRAIN 120V 80W

SPINREVOLUTION 1100rpm

C

B

A

D

FeaturesandSpecifications_7

2-3 DeTAIL feATuReS

gradeWA48J7700AWA48J7770A

WA48H7400AW

Image

Main Spec

Capacity(DOE) 48 48

AquaJetTM Yes Yes

Smart Care Yes Yes

Diamond interior drum Yes Yes

Self Clean Yes Yes

Washing Cycles 11 11

Internal Heater - -

VRTreg Yes Yes

Pulsator material STS STS

Maxrpm(Maxspinspeed)

1100 1100

Mist Shower Yes Yes

Motor DD DD

Design

Color White Inox

Neat White

Main display 1888 1888

JogDial Chrome Chrome

LED color Ice-blue Ice-blue

Door Lid TC Transparent Glass Tempered Tinted glass

Easy door Yes Yes

Top Cover Steel(EGI)+Painting Steel(EGI)+Painting

energy

EstimatedYearlyOperating Cost (whenusedwithan electric water heater)

$15

EstimatedYearlyEnergy Cost (whenusedwithan electric water heater)

$17

EstimatedYearlyElectricityUse 129kWh EstimatedYearly

ElectricityUse 145kWh

EstimatedYearlyOperating Cost (whenusedwithanatural gas water heater)

$9

EstimatedYearlyEnergy Cost (whenusedwithanatural gas water heater)

$11

8_FeaturesandSpecifications

2-4 oPTIoNS SPeCIfICATIoNS

Item Item Name Code No Remark

HOSE-HANGER DC61-00224A Default

MANUAL-BOOK DC68-03132L Default

CABLETIE 6501-000121 Default

ASSYCAPVW DC97-18313A Default

ASSY-LEGSUPPORT DC97-14095A Service

Notebull CustomercanpurchaseWatersupplydrainhosesandassylegsupportfromaservicecenter

Disassembly and Reassembly _ 9

3 DISASSeMBLy AND ReASSeMBLy

3-1 TooLS foR DISASSeMBLy AND ReASSeMBLy

Tool Type Remarks

Boxdriver10mm17mm

Tub(16)Fixerscrew(5)Motor(1)Balance(5)Damper(2)Damper(friction1)

Double-ended spanner

10mm17mm

ReplacedbyboxdriverLeg

Vice pliersAToolforprotectingemptyturningofboltorabrasionfromusingboxdriverFor disassembly of Spin drum

Others(screwdrivernipperlongnosepliers)

Common tools for servicing

JIGfortheASSYSPINBASKET

10 _ Disassembly and Reassembly

3-2 STANDARD DISASSeMBLy DRAWINgS Thisisastandarddisassemblydiagramandmaydifferfromtheactualproduct

Usethismaterialasareferencewhendisassemblingandreassemblingtheproduct

Part figure Description

Sub and Main PCB Assembly

1 Remove the 6 screws holding the control panel assembly

2 Separatethebothhooks(LeftandRight)3 Separate the cover panel upward

Ifitisdifficulttodisassembleusethe(-)drivertodisassemblehooks (Becarefuldamageofhooks)

4 Remove the 2 screws holding the control panel assembly and turn the panel over

5 PulltheEncoder-Knobtoseparateitandthenremovethe4fixingscrews WhenreassemblingthePCBtakecarethat you do not damage the control-panel fixinghookAfterreplacingthesubPCBcheckthekeyoperation

6 Separatethecoverpcb(m)andthewiresconnectedtothemainPBA Afterreassemblingthehousingcheckif the wires are properly connected When disassembling and reassembling thehousingtakecarethatyoudonotdamage the part

Disassembly and Reassembly _ 11

Part figure Description

Water valve

1 Afterseparatingthecontrolpanelseparatethe water-valve housing

2 Removethe3fixingscrews

3 Remove the wire-harness and release the 2 clamps connecting the hoses Whenreleasingtheclampstakecarethat you do not tear the hoses

12 _ Disassembly and Reassembly

Part figure Description

Door Assembly1 Remove the 2 inlay tapes 2 Remove the 4 screws holding the door

lid TC and separate the door

Disassembly and Reassembly _ 13

Part figure Description

Top Cover Assembly Door Switch

1 Remove the 2 screws from the cover plate

2 Separate the control panel assembly

3 SeparatetheAssyValveWaterthemainPBAtheAssySensorPressureandthefilterEMIhousing

Separate the housing to prevent stress and damage to the wire-harness

4 SeparatethemainwireharnessthepressureswitchhoseclipGroundingscrew

5 Release the bleach hose clamp

6 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

7 youcancheckthedoorswitchIfturntheTop cover upside down

Sensor Pressure Switch

1 Disassemble the control panel assembly2 Separate the pressure switch housing

3 Beforeseparatingthehosereleasetheclip Whenreleasingthecliptakecarethat you do not tear the hose

14 _ Disassembly and Reassembly

Part figure Description

Drain-Pump

1 Separatethebackcover2 Separate 2 clamps3 Remove the 13 screws in base4 Remove the 3 screws5screwsareseparatedbylsquo+rsquoshapehand

driver

Thermistor 1 Remove the 2 screws

Disassembly and Reassembly _ 15

Part figure Description

Clutch Assembly (continued)

1 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

2 Remove the 2 screws holding the panel control Separate all the wires connected to the housing

3 Removethe4screwsfixingthetub-cover and separate the tub-cover

4 Separate the pulsator-cap by inserting thetipofa(-)screwdriverbetweenthepulsator-cap and the pulsator and then liftingthescrewdriverup(uarr)

5 Remove the bolt holding the pulsator with a 10mm wrench

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

6_FeaturesandSpecifications

2-2 SPeCIfICATIoNS

TyPe ToP LoADINg WASHeR

DIMENSION(Inchescm)

AHeight 439Prime1115cm

B Width 270Prime686cm

C Height with Door open 581Prime1476cm

D Depth 293Prime744cm

WATERPRESSURE 20~116psi(137~800kPa)

WEIGHT 640kg(1411lb)

CAPACITY 48cuft

POWER CONSUMPTION

WASHING 120V 700W

SPIN 120V 400W

DRAIN 120V 80W

SPINREVOLUTION 1100rpm

C

B

A

D

FeaturesandSpecifications_7

2-3 DeTAIL feATuReS

gradeWA48J7700AWA48J7770A

WA48H7400AW

Image

Main Spec

Capacity(DOE) 48 48

AquaJetTM Yes Yes

Smart Care Yes Yes

Diamond interior drum Yes Yes

Self Clean Yes Yes

Washing Cycles 11 11

Internal Heater - -

VRTreg Yes Yes

Pulsator material STS STS

Maxrpm(Maxspinspeed)

1100 1100

Mist Shower Yes Yes

Motor DD DD

Design

Color White Inox

Neat White

Main display 1888 1888

JogDial Chrome Chrome

LED color Ice-blue Ice-blue

Door Lid TC Transparent Glass Tempered Tinted glass

Easy door Yes Yes

Top Cover Steel(EGI)+Painting Steel(EGI)+Painting

energy

EstimatedYearlyOperating Cost (whenusedwithan electric water heater)

$15

EstimatedYearlyEnergy Cost (whenusedwithan electric water heater)

$17

EstimatedYearlyElectricityUse 129kWh EstimatedYearly

ElectricityUse 145kWh

EstimatedYearlyOperating Cost (whenusedwithanatural gas water heater)

$9

EstimatedYearlyEnergy Cost (whenusedwithanatural gas water heater)

$11

8_FeaturesandSpecifications

2-4 oPTIoNS SPeCIfICATIoNS

Item Item Name Code No Remark

HOSE-HANGER DC61-00224A Default

MANUAL-BOOK DC68-03132L Default

CABLETIE 6501-000121 Default

ASSYCAPVW DC97-18313A Default

ASSY-LEGSUPPORT DC97-14095A Service

Notebull CustomercanpurchaseWatersupplydrainhosesandassylegsupportfromaservicecenter

Disassembly and Reassembly _ 9

3 DISASSeMBLy AND ReASSeMBLy

3-1 TooLS foR DISASSeMBLy AND ReASSeMBLy

Tool Type Remarks

Boxdriver10mm17mm

Tub(16)Fixerscrew(5)Motor(1)Balance(5)Damper(2)Damper(friction1)

Double-ended spanner

10mm17mm

ReplacedbyboxdriverLeg

Vice pliersAToolforprotectingemptyturningofboltorabrasionfromusingboxdriverFor disassembly of Spin drum

Others(screwdrivernipperlongnosepliers)

Common tools for servicing

JIGfortheASSYSPINBASKET

10 _ Disassembly and Reassembly

3-2 STANDARD DISASSeMBLy DRAWINgS Thisisastandarddisassemblydiagramandmaydifferfromtheactualproduct

Usethismaterialasareferencewhendisassemblingandreassemblingtheproduct

Part figure Description

Sub and Main PCB Assembly

1 Remove the 6 screws holding the control panel assembly

2 Separatethebothhooks(LeftandRight)3 Separate the cover panel upward

Ifitisdifficulttodisassembleusethe(-)drivertodisassemblehooks (Becarefuldamageofhooks)

4 Remove the 2 screws holding the control panel assembly and turn the panel over

5 PulltheEncoder-Knobtoseparateitandthenremovethe4fixingscrews WhenreassemblingthePCBtakecarethat you do not damage the control-panel fixinghookAfterreplacingthesubPCBcheckthekeyoperation

6 Separatethecoverpcb(m)andthewiresconnectedtothemainPBA Afterreassemblingthehousingcheckif the wires are properly connected When disassembling and reassembling thehousingtakecarethatyoudonotdamage the part

Disassembly and Reassembly _ 11

Part figure Description

Water valve

1 Afterseparatingthecontrolpanelseparatethe water-valve housing

2 Removethe3fixingscrews

3 Remove the wire-harness and release the 2 clamps connecting the hoses Whenreleasingtheclampstakecarethat you do not tear the hoses

12 _ Disassembly and Reassembly

Part figure Description

Door Assembly1 Remove the 2 inlay tapes 2 Remove the 4 screws holding the door

lid TC and separate the door

Disassembly and Reassembly _ 13

Part figure Description

Top Cover Assembly Door Switch

1 Remove the 2 screws from the cover plate

2 Separate the control panel assembly

3 SeparatetheAssyValveWaterthemainPBAtheAssySensorPressureandthefilterEMIhousing

Separate the housing to prevent stress and damage to the wire-harness

4 SeparatethemainwireharnessthepressureswitchhoseclipGroundingscrew

5 Release the bleach hose clamp

6 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

7 youcancheckthedoorswitchIfturntheTop cover upside down

Sensor Pressure Switch

1 Disassemble the control panel assembly2 Separate the pressure switch housing

3 Beforeseparatingthehosereleasetheclip Whenreleasingthecliptakecarethat you do not tear the hose

14 _ Disassembly and Reassembly

Part figure Description

Drain-Pump

1 Separatethebackcover2 Separate 2 clamps3 Remove the 13 screws in base4 Remove the 3 screws5screwsareseparatedbylsquo+rsquoshapehand

driver

Thermistor 1 Remove the 2 screws

Disassembly and Reassembly _ 15

Part figure Description

Clutch Assembly (continued)

1 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

2 Remove the 2 screws holding the panel control Separate all the wires connected to the housing

3 Removethe4screwsfixingthetub-cover and separate the tub-cover

4 Separate the pulsator-cap by inserting thetipofa(-)screwdriverbetweenthepulsator-cap and the pulsator and then liftingthescrewdriverup(uarr)

5 Remove the bolt holding the pulsator with a 10mm wrench

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

FeaturesandSpecifications_7

2-3 DeTAIL feATuReS

gradeWA48J7700AWA48J7770A

WA48H7400AW

Image

Main Spec

Capacity(DOE) 48 48

AquaJetTM Yes Yes

Smart Care Yes Yes

Diamond interior drum Yes Yes

Self Clean Yes Yes

Washing Cycles 11 11

Internal Heater - -

VRTreg Yes Yes

Pulsator material STS STS

Maxrpm(Maxspinspeed)

1100 1100

Mist Shower Yes Yes

Motor DD DD

Design

Color White Inox

Neat White

Main display 1888 1888

JogDial Chrome Chrome

LED color Ice-blue Ice-blue

Door Lid TC Transparent Glass Tempered Tinted glass

Easy door Yes Yes

Top Cover Steel(EGI)+Painting Steel(EGI)+Painting

energy

EstimatedYearlyOperating Cost (whenusedwithan electric water heater)

$15

EstimatedYearlyEnergy Cost (whenusedwithan electric water heater)

$17

EstimatedYearlyElectricityUse 129kWh EstimatedYearly

ElectricityUse 145kWh

EstimatedYearlyOperating Cost (whenusedwithanatural gas water heater)

$9

EstimatedYearlyEnergy Cost (whenusedwithanatural gas water heater)

$11

8_FeaturesandSpecifications

2-4 oPTIoNS SPeCIfICATIoNS

Item Item Name Code No Remark

HOSE-HANGER DC61-00224A Default

MANUAL-BOOK DC68-03132L Default

CABLETIE 6501-000121 Default

ASSYCAPVW DC97-18313A Default

ASSY-LEGSUPPORT DC97-14095A Service

Notebull CustomercanpurchaseWatersupplydrainhosesandassylegsupportfromaservicecenter

Disassembly and Reassembly _ 9

3 DISASSeMBLy AND ReASSeMBLy

3-1 TooLS foR DISASSeMBLy AND ReASSeMBLy

Tool Type Remarks

Boxdriver10mm17mm

Tub(16)Fixerscrew(5)Motor(1)Balance(5)Damper(2)Damper(friction1)

Double-ended spanner

10mm17mm

ReplacedbyboxdriverLeg

Vice pliersAToolforprotectingemptyturningofboltorabrasionfromusingboxdriverFor disassembly of Spin drum

Others(screwdrivernipperlongnosepliers)

Common tools for servicing

JIGfortheASSYSPINBASKET

10 _ Disassembly and Reassembly

3-2 STANDARD DISASSeMBLy DRAWINgS Thisisastandarddisassemblydiagramandmaydifferfromtheactualproduct

Usethismaterialasareferencewhendisassemblingandreassemblingtheproduct

Part figure Description

Sub and Main PCB Assembly

1 Remove the 6 screws holding the control panel assembly

2 Separatethebothhooks(LeftandRight)3 Separate the cover panel upward

Ifitisdifficulttodisassembleusethe(-)drivertodisassemblehooks (Becarefuldamageofhooks)

4 Remove the 2 screws holding the control panel assembly and turn the panel over

5 PulltheEncoder-Knobtoseparateitandthenremovethe4fixingscrews WhenreassemblingthePCBtakecarethat you do not damage the control-panel fixinghookAfterreplacingthesubPCBcheckthekeyoperation

6 Separatethecoverpcb(m)andthewiresconnectedtothemainPBA Afterreassemblingthehousingcheckif the wires are properly connected When disassembling and reassembling thehousingtakecarethatyoudonotdamage the part

Disassembly and Reassembly _ 11

Part figure Description

Water valve

1 Afterseparatingthecontrolpanelseparatethe water-valve housing

2 Removethe3fixingscrews

3 Remove the wire-harness and release the 2 clamps connecting the hoses Whenreleasingtheclampstakecarethat you do not tear the hoses

12 _ Disassembly and Reassembly

Part figure Description

Door Assembly1 Remove the 2 inlay tapes 2 Remove the 4 screws holding the door

lid TC and separate the door

Disassembly and Reassembly _ 13

Part figure Description

Top Cover Assembly Door Switch

1 Remove the 2 screws from the cover plate

2 Separate the control panel assembly

3 SeparatetheAssyValveWaterthemainPBAtheAssySensorPressureandthefilterEMIhousing

Separate the housing to prevent stress and damage to the wire-harness

4 SeparatethemainwireharnessthepressureswitchhoseclipGroundingscrew

5 Release the bleach hose clamp

6 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

7 youcancheckthedoorswitchIfturntheTop cover upside down

Sensor Pressure Switch

1 Disassemble the control panel assembly2 Separate the pressure switch housing

3 Beforeseparatingthehosereleasetheclip Whenreleasingthecliptakecarethat you do not tear the hose

14 _ Disassembly and Reassembly

Part figure Description

Drain-Pump

1 Separatethebackcover2 Separate 2 clamps3 Remove the 13 screws in base4 Remove the 3 screws5screwsareseparatedbylsquo+rsquoshapehand

driver

Thermistor 1 Remove the 2 screws

Disassembly and Reassembly _ 15

Part figure Description

Clutch Assembly (continued)

1 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

2 Remove the 2 screws holding the panel control Separate all the wires connected to the housing

3 Removethe4screwsfixingthetub-cover and separate the tub-cover

4 Separate the pulsator-cap by inserting thetipofa(-)screwdriverbetweenthepulsator-cap and the pulsator and then liftingthescrewdriverup(uarr)

5 Remove the bolt holding the pulsator with a 10mm wrench

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

8_FeaturesandSpecifications

2-4 oPTIoNS SPeCIfICATIoNS

Item Item Name Code No Remark

HOSE-HANGER DC61-00224A Default

MANUAL-BOOK DC68-03132L Default

CABLETIE 6501-000121 Default

ASSYCAPVW DC97-18313A Default

ASSY-LEGSUPPORT DC97-14095A Service

Notebull CustomercanpurchaseWatersupplydrainhosesandassylegsupportfromaservicecenter

Disassembly and Reassembly _ 9

3 DISASSeMBLy AND ReASSeMBLy

3-1 TooLS foR DISASSeMBLy AND ReASSeMBLy

Tool Type Remarks

Boxdriver10mm17mm

Tub(16)Fixerscrew(5)Motor(1)Balance(5)Damper(2)Damper(friction1)

Double-ended spanner

10mm17mm

ReplacedbyboxdriverLeg

Vice pliersAToolforprotectingemptyturningofboltorabrasionfromusingboxdriverFor disassembly of Spin drum

Others(screwdrivernipperlongnosepliers)

Common tools for servicing

JIGfortheASSYSPINBASKET

10 _ Disassembly and Reassembly

3-2 STANDARD DISASSeMBLy DRAWINgS Thisisastandarddisassemblydiagramandmaydifferfromtheactualproduct

Usethismaterialasareferencewhendisassemblingandreassemblingtheproduct

Part figure Description

Sub and Main PCB Assembly

1 Remove the 6 screws holding the control panel assembly

2 Separatethebothhooks(LeftandRight)3 Separate the cover panel upward

Ifitisdifficulttodisassembleusethe(-)drivertodisassemblehooks (Becarefuldamageofhooks)

4 Remove the 2 screws holding the control panel assembly and turn the panel over

5 PulltheEncoder-Knobtoseparateitandthenremovethe4fixingscrews WhenreassemblingthePCBtakecarethat you do not damage the control-panel fixinghookAfterreplacingthesubPCBcheckthekeyoperation

6 Separatethecoverpcb(m)andthewiresconnectedtothemainPBA Afterreassemblingthehousingcheckif the wires are properly connected When disassembling and reassembling thehousingtakecarethatyoudonotdamage the part

Disassembly and Reassembly _ 11

Part figure Description

Water valve

1 Afterseparatingthecontrolpanelseparatethe water-valve housing

2 Removethe3fixingscrews

3 Remove the wire-harness and release the 2 clamps connecting the hoses Whenreleasingtheclampstakecarethat you do not tear the hoses

12 _ Disassembly and Reassembly

Part figure Description

Door Assembly1 Remove the 2 inlay tapes 2 Remove the 4 screws holding the door

lid TC and separate the door

Disassembly and Reassembly _ 13

Part figure Description

Top Cover Assembly Door Switch

1 Remove the 2 screws from the cover plate

2 Separate the control panel assembly

3 SeparatetheAssyValveWaterthemainPBAtheAssySensorPressureandthefilterEMIhousing

Separate the housing to prevent stress and damage to the wire-harness

4 SeparatethemainwireharnessthepressureswitchhoseclipGroundingscrew

5 Release the bleach hose clamp

6 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

7 youcancheckthedoorswitchIfturntheTop cover upside down

Sensor Pressure Switch

1 Disassemble the control panel assembly2 Separate the pressure switch housing

3 Beforeseparatingthehosereleasetheclip Whenreleasingthecliptakecarethat you do not tear the hose

14 _ Disassembly and Reassembly

Part figure Description

Drain-Pump

1 Separatethebackcover2 Separate 2 clamps3 Remove the 13 screws in base4 Remove the 3 screws5screwsareseparatedbylsquo+rsquoshapehand

driver

Thermistor 1 Remove the 2 screws

Disassembly and Reassembly _ 15

Part figure Description

Clutch Assembly (continued)

1 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

2 Remove the 2 screws holding the panel control Separate all the wires connected to the housing

3 Removethe4screwsfixingthetub-cover and separate the tub-cover

4 Separate the pulsator-cap by inserting thetipofa(-)screwdriverbetweenthepulsator-cap and the pulsator and then liftingthescrewdriverup(uarr)

5 Remove the bolt holding the pulsator with a 10mm wrench

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

Disassembly and Reassembly _ 9

3 DISASSeMBLy AND ReASSeMBLy

3-1 TooLS foR DISASSeMBLy AND ReASSeMBLy

Tool Type Remarks

Boxdriver10mm17mm

Tub(16)Fixerscrew(5)Motor(1)Balance(5)Damper(2)Damper(friction1)

Double-ended spanner

10mm17mm

ReplacedbyboxdriverLeg

Vice pliersAToolforprotectingemptyturningofboltorabrasionfromusingboxdriverFor disassembly of Spin drum

Others(screwdrivernipperlongnosepliers)

Common tools for servicing

JIGfortheASSYSPINBASKET

10 _ Disassembly and Reassembly

3-2 STANDARD DISASSeMBLy DRAWINgS Thisisastandarddisassemblydiagramandmaydifferfromtheactualproduct

Usethismaterialasareferencewhendisassemblingandreassemblingtheproduct

Part figure Description

Sub and Main PCB Assembly

1 Remove the 6 screws holding the control panel assembly

2 Separatethebothhooks(LeftandRight)3 Separate the cover panel upward

Ifitisdifficulttodisassembleusethe(-)drivertodisassemblehooks (Becarefuldamageofhooks)

4 Remove the 2 screws holding the control panel assembly and turn the panel over

5 PulltheEncoder-Knobtoseparateitandthenremovethe4fixingscrews WhenreassemblingthePCBtakecarethat you do not damage the control-panel fixinghookAfterreplacingthesubPCBcheckthekeyoperation

6 Separatethecoverpcb(m)andthewiresconnectedtothemainPBA Afterreassemblingthehousingcheckif the wires are properly connected When disassembling and reassembling thehousingtakecarethatyoudonotdamage the part

Disassembly and Reassembly _ 11

Part figure Description

Water valve

1 Afterseparatingthecontrolpanelseparatethe water-valve housing

2 Removethe3fixingscrews

3 Remove the wire-harness and release the 2 clamps connecting the hoses Whenreleasingtheclampstakecarethat you do not tear the hoses

12 _ Disassembly and Reassembly

Part figure Description

Door Assembly1 Remove the 2 inlay tapes 2 Remove the 4 screws holding the door

lid TC and separate the door

Disassembly and Reassembly _ 13

Part figure Description

Top Cover Assembly Door Switch

1 Remove the 2 screws from the cover plate

2 Separate the control panel assembly

3 SeparatetheAssyValveWaterthemainPBAtheAssySensorPressureandthefilterEMIhousing

Separate the housing to prevent stress and damage to the wire-harness

4 SeparatethemainwireharnessthepressureswitchhoseclipGroundingscrew

5 Release the bleach hose clamp

6 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

7 youcancheckthedoorswitchIfturntheTop cover upside down

Sensor Pressure Switch

1 Disassemble the control panel assembly2 Separate the pressure switch housing

3 Beforeseparatingthehosereleasetheclip Whenreleasingthecliptakecarethat you do not tear the hose

14 _ Disassembly and Reassembly

Part figure Description

Drain-Pump

1 Separatethebackcover2 Separate 2 clamps3 Remove the 13 screws in base4 Remove the 3 screws5screwsareseparatedbylsquo+rsquoshapehand

driver

Thermistor 1 Remove the 2 screws

Disassembly and Reassembly _ 15

Part figure Description

Clutch Assembly (continued)

1 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

2 Remove the 2 screws holding the panel control Separate all the wires connected to the housing

3 Removethe4screwsfixingthetub-cover and separate the tub-cover

4 Separate the pulsator-cap by inserting thetipofa(-)screwdriverbetweenthepulsator-cap and the pulsator and then liftingthescrewdriverup(uarr)

5 Remove the bolt holding the pulsator with a 10mm wrench

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

10 _ Disassembly and Reassembly

3-2 STANDARD DISASSeMBLy DRAWINgS Thisisastandarddisassemblydiagramandmaydifferfromtheactualproduct

Usethismaterialasareferencewhendisassemblingandreassemblingtheproduct

Part figure Description

Sub and Main PCB Assembly

1 Remove the 6 screws holding the control panel assembly

2 Separatethebothhooks(LeftandRight)3 Separate the cover panel upward

Ifitisdifficulttodisassembleusethe(-)drivertodisassemblehooks (Becarefuldamageofhooks)

4 Remove the 2 screws holding the control panel assembly and turn the panel over

5 PulltheEncoder-Knobtoseparateitandthenremovethe4fixingscrews WhenreassemblingthePCBtakecarethat you do not damage the control-panel fixinghookAfterreplacingthesubPCBcheckthekeyoperation

6 Separatethecoverpcb(m)andthewiresconnectedtothemainPBA Afterreassemblingthehousingcheckif the wires are properly connected When disassembling and reassembling thehousingtakecarethatyoudonotdamage the part

Disassembly and Reassembly _ 11

Part figure Description

Water valve

1 Afterseparatingthecontrolpanelseparatethe water-valve housing

2 Removethe3fixingscrews

3 Remove the wire-harness and release the 2 clamps connecting the hoses Whenreleasingtheclampstakecarethat you do not tear the hoses

12 _ Disassembly and Reassembly

Part figure Description

Door Assembly1 Remove the 2 inlay tapes 2 Remove the 4 screws holding the door

lid TC and separate the door

Disassembly and Reassembly _ 13

Part figure Description

Top Cover Assembly Door Switch

1 Remove the 2 screws from the cover plate

2 Separate the control panel assembly

3 SeparatetheAssyValveWaterthemainPBAtheAssySensorPressureandthefilterEMIhousing

Separate the housing to prevent stress and damage to the wire-harness

4 SeparatethemainwireharnessthepressureswitchhoseclipGroundingscrew

5 Release the bleach hose clamp

6 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

7 youcancheckthedoorswitchIfturntheTop cover upside down

Sensor Pressure Switch

1 Disassemble the control panel assembly2 Separate the pressure switch housing

3 Beforeseparatingthehosereleasetheclip Whenreleasingthecliptakecarethat you do not tear the hose

14 _ Disassembly and Reassembly

Part figure Description

Drain-Pump

1 Separatethebackcover2 Separate 2 clamps3 Remove the 13 screws in base4 Remove the 3 screws5screwsareseparatedbylsquo+rsquoshapehand

driver

Thermistor 1 Remove the 2 screws

Disassembly and Reassembly _ 15

Part figure Description

Clutch Assembly (continued)

1 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

2 Remove the 2 screws holding the panel control Separate all the wires connected to the housing

3 Removethe4screwsfixingthetub-cover and separate the tub-cover

4 Separate the pulsator-cap by inserting thetipofa(-)screwdriverbetweenthepulsator-cap and the pulsator and then liftingthescrewdriverup(uarr)

5 Remove the bolt holding the pulsator with a 10mm wrench

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

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HIT

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⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

Disassembly and Reassembly _ 11

Part figure Description

Water valve

1 Afterseparatingthecontrolpanelseparatethe water-valve housing

2 Removethe3fixingscrews

3 Remove the wire-harness and release the 2 clamps connecting the hoses Whenreleasingtheclampstakecarethat you do not tear the hoses

12 _ Disassembly and Reassembly

Part figure Description

Door Assembly1 Remove the 2 inlay tapes 2 Remove the 4 screws holding the door

lid TC and separate the door

Disassembly and Reassembly _ 13

Part figure Description

Top Cover Assembly Door Switch

1 Remove the 2 screws from the cover plate

2 Separate the control panel assembly

3 SeparatetheAssyValveWaterthemainPBAtheAssySensorPressureandthefilterEMIhousing

Separate the housing to prevent stress and damage to the wire-harness

4 SeparatethemainwireharnessthepressureswitchhoseclipGroundingscrew

5 Release the bleach hose clamp

6 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

7 youcancheckthedoorswitchIfturntheTop cover upside down

Sensor Pressure Switch

1 Disassemble the control panel assembly2 Separate the pressure switch housing

3 Beforeseparatingthehosereleasetheclip Whenreleasingthecliptakecarethat you do not tear the hose

14 _ Disassembly and Reassembly

Part figure Description

Drain-Pump

1 Separatethebackcover2 Separate 2 clamps3 Remove the 13 screws in base4 Remove the 3 screws5screwsareseparatedbylsquo+rsquoshapehand

driver

Thermistor 1 Remove the 2 screws

Disassembly and Reassembly _ 15

Part figure Description

Clutch Assembly (continued)

1 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

2 Remove the 2 screws holding the panel control Separate all the wires connected to the housing

3 Removethe4screwsfixingthetub-cover and separate the tub-cover

4 Separate the pulsator-cap by inserting thetipofa(-)screwdriverbetweenthepulsator-cap and the pulsator and then liftingthescrewdriverup(uarr)

5 Remove the bolt holding the pulsator with a 10mm wrench

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

12 _ Disassembly and Reassembly

Part figure Description

Door Assembly1 Remove the 2 inlay tapes 2 Remove the 4 screws holding the door

lid TC and separate the door

Disassembly and Reassembly _ 13

Part figure Description

Top Cover Assembly Door Switch

1 Remove the 2 screws from the cover plate

2 Separate the control panel assembly

3 SeparatetheAssyValveWaterthemainPBAtheAssySensorPressureandthefilterEMIhousing

Separate the housing to prevent stress and damage to the wire-harness

4 SeparatethemainwireharnessthepressureswitchhoseclipGroundingscrew

5 Release the bleach hose clamp

6 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

7 youcancheckthedoorswitchIfturntheTop cover upside down

Sensor Pressure Switch

1 Disassemble the control panel assembly2 Separate the pressure switch housing

3 Beforeseparatingthehosereleasetheclip Whenreleasingthecliptakecarethat you do not tear the hose

14 _ Disassembly and Reassembly

Part figure Description

Drain-Pump

1 Separatethebackcover2 Separate 2 clamps3 Remove the 13 screws in base4 Remove the 3 screws5screwsareseparatedbylsquo+rsquoshapehand

driver

Thermistor 1 Remove the 2 screws

Disassembly and Reassembly _ 15

Part figure Description

Clutch Assembly (continued)

1 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

2 Remove the 2 screws holding the panel control Separate all the wires connected to the housing

3 Removethe4screwsfixingthetub-cover and separate the tub-cover

4 Separate the pulsator-cap by inserting thetipofa(-)screwdriverbetweenthepulsator-cap and the pulsator and then liftingthescrewdriverup(uarr)

5 Remove the bolt holding the pulsator with a 10mm wrench

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

Disassembly and Reassembly _ 13

Part figure Description

Top Cover Assembly Door Switch

1 Remove the 2 screws from the cover plate

2 Separate the control panel assembly

3 SeparatetheAssyValveWaterthemainPBAtheAssySensorPressureandthefilterEMIhousing

Separate the housing to prevent stress and damage to the wire-harness

4 SeparatethemainwireharnessthepressureswitchhoseclipGroundingscrew

5 Release the bleach hose clamp

6 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

7 youcancheckthedoorswitchIfturntheTop cover upside down

Sensor Pressure Switch

1 Disassemble the control panel assembly2 Separate the pressure switch housing

3 Beforeseparatingthehosereleasetheclip Whenreleasingthecliptakecarethat you do not tear the hose

14 _ Disassembly and Reassembly

Part figure Description

Drain-Pump

1 Separatethebackcover2 Separate 2 clamps3 Remove the 13 screws in base4 Remove the 3 screws5screwsareseparatedbylsquo+rsquoshapehand

driver

Thermistor 1 Remove the 2 screws

Disassembly and Reassembly _ 15

Part figure Description

Clutch Assembly (continued)

1 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

2 Remove the 2 screws holding the panel control Separate all the wires connected to the housing

3 Removethe4screwsfixingthetub-cover and separate the tub-cover

4 Separate the pulsator-cap by inserting thetipofa(-)screwdriverbetweenthepulsator-cap and the pulsator and then liftingthescrewdriverup(uarr)

5 Remove the bolt holding the pulsator with a 10mm wrench

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

14 _ Disassembly and Reassembly

Part figure Description

Drain-Pump

1 Separatethebackcover2 Separate 2 clamps3 Remove the 13 screws in base4 Remove the 3 screws5screwsareseparatedbylsquo+rsquoshapehand

driver

Thermistor 1 Remove the 2 screws

Disassembly and Reassembly _ 15

Part figure Description

Clutch Assembly (continued)

1 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

2 Remove the 2 screws holding the panel control Separate all the wires connected to the housing

3 Removethe4screwsfixingthetub-cover and separate the tub-cover

4 Separate the pulsator-cap by inserting thetipofa(-)screwdriverbetweenthepulsator-cap and the pulsator and then liftingthescrewdriverup(uarr)

5 Remove the bolt holding the pulsator with a 10mm wrench

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

Disassembly and Reassembly _ 15

Part figure Description

Clutch Assembly (continued)

1 Separate the top cover assembly by lifting and pushing ahead the top part of the assembly

2 Remove the 2 screws holding the panel control Separate all the wires connected to the housing

3 Removethe4screwsfixingthetub-cover and separate the tub-cover

4 Separate the pulsator-cap by inserting thetipofa(-)screwdriverbetweenthepulsator-cap and the pulsator and then liftingthescrewdriverup(uarr)

5 Remove the bolt holding the pulsator with a 10mm wrench

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

16 _ Disassembly and Reassembly

Part figure Description

Clutch Assembly (continued)

6 Remove the shaft with the jig wrench -Releasethenutinaclockwisedirection-Fastenthenutinacounterclockwise

direction

7 Place the main body so that the front frame faces upward and remove the 4 bolts holding the saddle with a 10mm wrench

When you place the washer on thefloortakecarethatyoudonotdamage or scratch the product

8 Remove the bolt holding the DD-motor housing with a 17mm wrench and then remove the motor housing

9 Remove the 6 bolts holding the DD-motor with a 10mm wrench

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

Disassembly and Reassembly _ 17

Part figure Description

Clutch Assembly (continued)

10Separatethe2markedhousingsandthen remove the DD-motor

11Pressthehooktoseparatethehousing

12 Separate the slide guide and the coupling by pulling them forward Disassemble the coupling and the spring

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

18 _ Disassembly and Reassembly

Part figure Description

13Removetheallscrewsfixingtheclutchassembly and then separate the clutch assembly

Reassembly procedures are in the reverse order of dissasembly procedures

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

Troubleshooting _ 19

4 TRouBLeSHooTINg

4-1 INfoRMATIoN MoDeS This is a washer integrated information mode for detailed information refer to the general repair scripts

Check Type for uSA Causes Remarks

Water Level Sensor 1C

- The part of the hose where the water level sensor is located is damaged(punctured)

- The hose is clogged with foreign material- The hose is folded- Too much lubricant has been applied to the insertion part of the

air hose - HoseengagementCheck(disengaged)- Partfault(Faultyinternalsoldering)- The water level sensor terminal is disengaged- MainPBAfault

Motor Driving Check and Hall Sensor Check

3C

- ThePBAconnectorterminalisnotconnected- The motor spin net is not engaged- Themotorrsquosinternalcoilisdamaged(short-circuitedorcut)- The hall sensor terminal is not connected- Foreignmaterial(ascrew)hasenteredthemotor- Motoroverloadedduetotoomuchlaundry(Non-sensing)- The motor hall sensor terminal is not connected- PBAfault- ThemotordrivingCheckfromthePBAisweak

Unstablerelayoperationetc- This occurs due to erroneous operating signals from the motor

hall sensor - TheIPMterminalofthemainPBAisnotconnected- The DD motor cover is out of place- The PCB housing terminal is not connected- PBAfault- DD motor fault

ThisCheckoccursbecause of restrained revolutions ThisCheckoccurswhen an interference is generated due to too muchlaundryetc

Water Supply Check

4C

- Foreign material is entering the water supply valve- The water supply valve terminal is not connected

(Wiredisconnected)- The warm water and rinse connectors are wrongly connected

to each other- This occurs if the PCB terminal from the drain hose to the

detergentdrawerisnotconnectedCheckwhetherthetransparent hose is folded or torn

4C2

- The cold and warm water supply hoses are wrongly engaged into each other

- The temperature of the water supplied through the dry valve duringadrycycleissensedashigherthan70˚C

- Thewatertemperatureissensedashigherthan50˚CintheWool or Lingerie courses

The water supplied for 1 minute drying the drying cycle is 03 ~ 04 L

Drain Check 5C

- The pump motor impeller is damaged internally- The wrong voltage is supplied to the parts- Part fault- This occurs due to freezing in the winter season- Thedrainhoseisclogged(InjectionCheckforeignmaterial)- Clogged with foreign material- Thewaterpumpterminalisnotconnectedrubberbandbills

cottonhairpinscoinshavecollectedinsidethedrainpumpASSY

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

20 _ Troubleshooting

Check Type for uSA Causes Remarks

Power Check 9C19C2

- Checktheconsumerrsquospowerconditions MakesuretochecktheoperatingvoltageConnecta

tester to the internal power terminals during the Boil or Dry operationsandobservethewashingmachinersquosoperationcarefully

Checkthevoltages (AnCheckoccurswhenunderorovervoltageissupplied)

Checkwhetheraplugreceptacleisused Whentheconnectingwireis1mamomentarylowvoltagemay drop up to 10 V

- MainPBAfault(sometimes)

Communication Check

AC

- ThesignalsbetweenthesubandmainPBAsarenotsensedbecauseofcommuicationCheck

- ChecktheconnectorconnectionsbetweenthesubandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovethesubPBACPanelandcheckforanyfaultysoldering

AC2 - ThediagnosisoftheIOBoardcommunicationcheck

AC3

- ThesignalsbetweenTheDRModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheDRModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheDRModuleandCheckforanyfaultysoldering

AC4

- ThesignalsbetweenTheWIFIModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheWIFIModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemovetheWIFIModuleandCheckforanyfaultysoldering

AC5

- ThesignalsbetweenTheLCDModuleandmainPBAsarenotsensedbecauseofcommunicationCheck

- CheckTheconnectorconnectionsbetweenTheLCDModuleandmainPBAscarefully rarrCheckforincorrectorlooseconnectionsetc

- RemoveTheLCDModuleandCheckforanyfaultysoldering

AC6

-ThesignalsbetweentheInverterPBAandmainPBAarenotsensedbecauseofcommunicationCheck

-CheckTheconnectorconnectionsbetweentheInverterPBAandmainPBAcarefully

rarrCheckforincorrectorlooseconnectionsetc-RemovetheInverterPBAandCheckforanyfaultysoldering

Switch Check(Main Relay Check)

BC2

- The Power button is pressed continually (formorethan12seconds)

- Aswitchisjammedorstuckduetobepressedunevenlyduetodeformation of the control panel or button

- ThisCheckmayoccurwhenthescrewsthatholdthesubPBAin place are tightened too much

- AbuttonotherthanthePowerbuttoniscontinuallypressed (formorethan30seconds)

- Deformation of an internal plastic injection part- AscrewforassemblingthesubPBAistightenedtoomuch

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

Troubleshooting _ 21

Check Type for uSA Causes Remarks

Door Check

DC

- AswitchcontactCheckbecauseofadeformationofthedoorhook

- When the door is pulled by force

When the door is not opened after the door open operation

- This occurs in the Boil wash because the door is pushed due to a pressure difference from internal temperature changes

When the door is not lockedafterthedoorclose operation

DC1

- Thedoorlockswitchterminalisconnectedincorrectly- Thedoorlockswitchterminalisbroken- Thisoccursintermittentlybecauseofanelectricwireleakage- Main PCB fault

DC2-ThisoccursifthePowerswitchisturnedonoffcontinuallyandtoomuchheatisgenerated(Thischeckisdifficulttobereproduced)

Heater CheckHCHC1HC2

- The washing heater is short-circuited or has a wire disconnected

- ThewashingheaterinthetubhasanCheck (ContactChecktemperaturesensorfault)

- If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heaterdetectsatemperatureof100to150˚Cthewashingmachine turns the input power off

- The drying heater is short-circuited or has a wire disconnected

If the heater has no CheckthisoccursbecauseofaPBArelaymalfunction

Water Leakage Check

LCLC1

- Heaterengagementfault(outofplace)- Theairhoseisoutofplaceandwaterleakageoccursduring

the spin cycle- Thetubbackatthesafetyboltsfixingpartisbroken- Waterleakageoccursatthefrontwithfoamingbecauseoftoo

much detergent- Waterleakageoccursbecausetheconnectinghosetothe

detergent drawer is connected incorrectly- Thedrainpumpfiltercoverisengagedincorrectly- Waterleakageoccursatthedrainhose- The duct condensing holding screws are worn- The nozzle-diaphragm is engaged in the opposite direction or

therubberpackagingisomitted- Waterleakageoccursbecausethescrewsthatholdthetub

backandfrontinplacearefastenedincorrectly- Theleakagesensorisfaulty

OverflowCheck OC

- Water is supplied continually because the water level detection doesnotwork

- Because the drain hose is clogged and there is an injection Check(atanarrowsection)thewaterleveldetectiondoesnotworkandwaterissuppliedcontinually

- Water is supplied continually because of freezing or because there is foreign material in the water supply valve

- ThisCheckmayoccurwhenthewaterlevelsensorisdegraded

ThisCheckoccursbecause the water level sensor terminal is out of place

Temperature Sensor Check

TC1TC2

- ThewashingheatersensorinthetubhasanCheck (ContactCheckortemperaturesensorfault)

- The connector is connected incorrectly or is disconnected- If the water level sensor operates without water because the

water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washingheaterdetectsatemperatureof100to150˚Cthewashing machine turns the input power off

Heater sensor fault When the connector is connected incorrectly or has a wire disconnected or contactCheck

TC4 - IPM temperature is abnormally high

unbalance Check UB

- AslaundrycausesthisCheckcheckthelaundry- Find the reason for the unbalance and solve it as directed in

the user manual

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

22 _ Troubleshooting

Check Type for uSA Causes Remarks

foaming Detected SUD

- This occurs when too much foaming is detected It is also displayed while foaming is removed When the removal is finishedthenormalcycleproceeds ldquoSudrdquoorldquoSUdSrdquoisdisplayedwhentoomuchfoamingisdetected and ldquoEndrdquo is displayed when the removal of the foamingisfinished (ThisisoneofthenormaloperationsItisanCheckforpreventingnon-sensingfaults)

Mems PBA Check Detected

8C1 - CheckdetectedintheMemsPBAordataCheckdetectedCheckthewireconnections Replace if necessary1 Checkthewireconnections2 ReplacetheMemsPBA3 MainPBAwireconnectionCheckorPBArsquossilvernanopart

malfunction Replace if necessary

8C2

8C

Clutch motor PC - Whenpositionoftheclutchcanrsquotbedetected

Clutch sensor PC1- Afterpositionoftheclutchisdetectedifthesignaloftheclutchhallgoeswrongoccurserror

System Check

SF1

- Micro Controller Operation Fail ReplaceAssyPCBSF2

SF3

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

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Colo

r

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rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

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ode

WA

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J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

Troubleshooting _ 23

4-2 CoRReCTIve ACTIoNS foR eACH CHeCk CoDeT

hesearecom

montroubleshootingproceduresforeachdrum

-typewasherC

heckmodeFordetailedinformationrefertothegeneralrepairscripts

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

Wat

er L

evel

S

enso

r1C

Checkifthewaterlevel

sens

or is

def

ectiv

e

bullCheckthewaterlevelsensorterminal

conn

ectio

ns

bullCheckthepartcodeofthewaterlevel

sensorbecauseifanincorrectpartisused

anabnormaloperationmayoccur(Abnormal

operation)

bullIfthewaterlevelsensorisdefectivereplace

itbull

Ifnoproblem

swerefoundforallofthe

proceduresabovereplacethePBA

Checkthewaterlevelsensor

frequency

1Checkitafterthewaterlevel

sens

or a

nd th

e co

nnec

tor a

re

conn

ecte

dCheckingPartBlue

Col

or W

ire O

ragn

e C

olor

Wire

2FrequencyApprox264KHz

withoutw

ater(M

in259K

Hz)

Checkifthewaterlevel

sens

or te

rmin

al is

pro

perly

co

nnec

ted

Checkifthewaterlevel

sensorhoseisbroken

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Was

hing

Mot

or

Def

ect

3C

This

may

occ

ur w

hen

the

was

hing

mot

or is

de

fect

ive

bullCheckthemotorconnectorterminal

conn

ectio

ns

bullCheckiftheMotorCoverStateisdam

aged

bullCheckifthecoilisbrokenduetomoisture

from

any

alie

n su

bsta

nce

bullIfthePBAcontrolcircuitisdefectivereplace

thePBA

CheckthemotorW

indingCoil

bullPlugouttheconnectorandread

res

ista

nces

at a

ny tw

o of

the

thre

e t

erm

inal

s on

Mot

orS

houldbe193Ω

(at25oC)

CheckifthewashingMotor

RotorStateisdefectiveor

not

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

24 _ Troubleshooting

Che

ck T

ype

Che

ck M

ode

Cau

ses

Cor

rect

ive

Act

ions

Des

crip

tion

of P

hoto

Wat

er S

uppl

y Check

4C

This

may

occ

ur w

hen

the

wat

er s

uppl

y va

lve

is

defe

ctiv

ebull

Ifthewatersupplyvalveisbrokenreplace

the

valv

ebull

Checkifthewatersupplyisblockeddue

toanaliensubstanceinthevalveorcheck

if th

e w

ater

is s

uppl

ied

to th

e m

achi

ne I

f aproblemisfoundtaketheappropriate

coun

term

easu

re

bullCheckifthewatersupplyisblockeddueto

the

wat

er b

eing

froz

en

bullIfthePBARelaymalfunctionsreplacethe

PBA

1 M

easu

re th

e re

sist

ance

of t

he

wat

er s

uppl

y va

lve

-Resistance09KΩto11KΩ

betw

een

the

term

inal

s of

the

Wat

er S

uppl

y Va

lve

2C

heckwhetherthereisforeign

mat

eria

l in

the

Wat

er s

uppl

y valvefilter

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

This

may

occ

ur d

ue to

fro

zen

wat

er

DrainCheck

5C

This

may

occ

ur w

hen

the

drai

n pu

mp

is d

efec

tive

bullCheckifthereisanyaliensubstanceinside

the

drai

ning

pum

p m

otor

bull

Checkthenaturaldraininthesamemanner

bullCheckifthereareanyincorrectconnections

orbrokenwires

bullIfthemachinemalfunctionsintermittently

whe

n th

e w

ash

tub

wat

er te

mpe

ratu

re is

highreplacethepump

bullIfthemotorstopsduetothewaterbeing

frozeninwinterremovethefrozenwater

refe

rrin

g to

the

rele

vant

repa

ir pr

oced

ures

Checkthedrainpumpresis

tance

(Resistance135~165Ω)

This

may

occ

ur d

ue to

fro

zen

wat

er

Checkifthereisanyalien

subs

tanc

e in

side

the

drai

ning

pum

p

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

Com

mun

icat

ion

Check

AC

The

sign

als

betw

een

the

sub

andmainPBAsarenot

sens

ed

bullCheckthewireconnectionsandterminal

contactsbetweenthesubandmainPBAs

bullCheckfordisconnectedwires

bullCheckwhetherthesubPBAisshort-circuited

beca

use

of m

oist

ure

bullIfthemainPBArsquoscommunicationcircuitis

faultyreplaceit

-In

corr

ect w

ire c

onne

ctio

ns

betw

een

the

sub

and

mai

n PBAs

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

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r TY

PE A

ndash NA

meric

a ⑦

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⑨ B

uye

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SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

Troubleshooting _ 25

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

DoorC

heck

DC

This

may

occ

ur w

hen

the

door

sw

itch

is d

efec

tive

This

may

occ

ur w

hen

the

mai

n P

CB

is d

efec

tive

bullCheckifadECheckoccursduringthe

boili

ng c

ours

ebull

AsthisCheckoccursbecausethedooris

openedclosethedoor

bullSince120Vpow

erisconnectedcheckif

thepowercordisdisconnectedorcheckthe

insu

latio

n st

atus

and

repa

ir it

if ne

cess

ary

bullIfthemainPBAdoordetectioncircuitis

defectivereplaceit

1ChecktheresistanceforR

eed

SW(C

heckingPartWhite-Green

W

ire)

-ResistanceApprox02Ω

b

etw

een

the

term

inal

s of

R

eed

SW

2ChecktheresistanceforM

otor

(C

heckingPartBlack-Brown

W

ire)

-Resistance33Ω

to46Ω

between

th

e te

rmin

als

of M

otor

DC1

D

C2

Thedoorlockswitchunitis

not i

nser

ted

Thedoorlockswitchunitis

dam

aged

Th

e w

ire is

dis

conn

ecte

dThedoorlockswitchunitis

defe

ctiv

eTh

is m

ay o

ccur

due

to a

de

fect

of t

he m

ain

PC

B

bullCheckwhetherthedoorlockswitchunitis

inse

rted

bullCheckwhetherthedoorlockswitchunitis

dam

aged

bull

Checkthedisconnectionofthewire

bullIfthedoorlockswitchunitisdefective

repl

ace

itbull

IfthemainPCBisdefectivereplaceit

3ChecktheresistanceforLock

UnlockContact

(C

heckingPartLockWhite-Red

W

ireUnlockWhite-BlueWire)

- R

esis

tanc

e R

esis

tanc

e

Approx02Ω

betweenthe

te

rmin

als

of C

onta

ct

ChecktheDoorLockUnlock

s

tate

SwitchCheck

(MainRelay

Check)

BC2

The

Pow

er b

utto

n is

co

ntin

ually

pre

ssed

Abuttonotherthanthe

Pow

er b

utto

n is

con

tinua

llypr

esse

d

bullCheckwhethereitherthePow

erswitchora

tac

t sw

itch

is c

ontin

ually

pre

ssed

bullC

heckwhethertheservicePBAholding

scr

ews

are

fast

ened

too

tight

If t

hey

are

fastenedtootightloosenthem

alittle

bullIfthemainPBAsw

itchingIC

onoffC

heckhas

occurredreplacethemainPBA

bullTheldquoE

2rdquoCheckoccursifthemainrelay

connectionsareincorrectCheckthe

connectionsIfthereisnoCheckinthe

connectionsreplacethemainPBA

Checkthecontactbetweenthe

cont

rol p

anel

but

tons

and

thei

rco

rres

pond

ing

tact

sw

itch

- Th

ere

mus

t be

a ga

p be

twee

n a

co

ntro

l pan

el b

utto

n an

d its

co

rres

pond

ing

mic

ro s

witc

h

OtherwiseanCheckoccurs

afterapprox30secondshas

p

asse

d

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

26 _ Troubleshooting

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

WaterLeakage

Check

LC

LC1

This

may

occ

ur w

hen

an

alie

n su

bsta

nce

is in

the

DV

C

ase

bullSincethisoccurswhenanaliensubstanceis

intheDrainingBellowsfornaturaldraining

rem

ove

the

alie

n su

bsta

nce

bullIfthedrainmotorisdefectivereplacethe

mot

or

bullCheckifthewaterleaksfromthetub

conn

ectio

n pa

rt

Checkifthereisanyalien

subs

tanc

e in

the

Dra

inin

g B

ello

ws

Checkifthereisanyalien

s

ubst

ance

suc

h as

und

erw

ear

wirecoinsetc

This

may

occ

ur d

ue to

a

defectoftheproductrsquos

inte

rnal

hos

e or

from

the

part

asse

mbl

y

Unbalance

Check

UB

This

may

occ

ur d

ue to

the

laun

dry

bein

g un

even

ly

dist

ribut

ed

bullCheckthelaundrytypeandcheckifthe

laun

dry

load

is u

nbal

ance

d-Makesuretocheckifthereisanylaundry

pres

ent t

hat a

bsor

bs a

lot o

f wat

er e

ven

if itsvolum

eissmallandexplaintheproblem

comprehensivelyifnecessary

-

Mem

sPBA

Det

ecte

d

8C

8C

1

8C

2

This

may

occ

ur d

ue to

di

scon

nect

ion

bullCheckwireconnections

-

This

may

occ

ur w

hen

the

Mem

sPBAisdefective

bullReplacetheMem

sPBA

bullReplaceMem

sPBAbecauseofthemain

PBAwiredisconnectionCheckorP

BAsilver

nano

par

t mal

func

tion

Overflow

Check

OC

This

may

occ

ur w

hen

the

wat

er le

vel s

enso

r is

defe

ctiv

e

This

may

occ

ur w

hen

wat

er

is s

uppl

ied

cont

inuo

usly

du

e to

free

zing

or f

orei

gn

mat

eria

ls in

the

wat

er

supp

ly v

alve

bullThewaterlevelsensorisreplaced

-

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

Troubleshooting _ 27

Sym

ptom

Che

ck C

ode

Cou

nter

mea

sure

Trou

bles

hoot

ing

Proc

edur

eM

easu

rem

ent P

ictu

re

HeaterC

heck

HC

H

C1

bullDisconnectionw

irebull

Heaterfalut

bullWash-thermistorfault

bullCheckforconnectionbetweenwireand

heat

er

bullIfwashheaterisfaultyreplaceit

-RefertheTY

PE1

bullIfitisnotproblem

inheaterreplacewash-

ther

mis

tor

-RefertheTY

PE2

-

Tem

pera

ture

SensorC

heck

TC

1

TC2

TC

3

TC4

bullW

ashingtemperature

sens

or fa

ult

bullDrytemperaturesensor

faul

tbullFaultyandincorrect

c

onne

ctio

ns o

f the

dry

c

onde

nsin

g se

nsor

bullMainPCBfault

bullFreezinginthewinter

seas

onbullIP

Mtemperatureis

abno

rmal

ly h

igh

bullChecktheconnectionsforthewashing

heat

er te

mpe

ratu

re s

enso

r con

nect

or

bullIfthewashingheatertem

peraturesensorhas

afunctionalerrorreplaceit

-ATC1checkoccurs

bullChecktheconnectionsforthedryheater

te

mpe

ratu

re s

enso

r con

nect

or

bullIfthedryheatertemperaturesensorhasa

functionalcheckreplaceit

-ATC2checkoccurs

-

Pow

erCheck

UC

(9C19C

2)

bullPow

erconditionfault

bullAncheckoccurswhen

unde

r or o

ver v

olta

ge is

su

pplie

dbullp

lugreceptacleisused

bullMainPBAfault

(som

etimes)

bullC

hecktheconsum

errsquospow

erconditions

Makesuretochecktheoperatingvoltage

bullC

onnectatestertotheinternalpow

er

term

inal

s du

ring

the

Boi

l or D

ry o

pera

tions

andobservethewashingmachinersquos

oper

atio

n ca

refu

lly

Checkthevoltages(A

checkoccurswhen

underorovervoltageissupplied)

Checkwhetheraplugreceptacleis

usedW

hentheconnectingwireis1ma

mom

enta

ry lo

w v

olta

ge m

ay d

rop

up to

10

VbullM

ainPBAfault(sometimes)

-

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

28 _ Troubleshooting

4-3 THe INSTALLATIoN foR LeveLINg

Problem Type Causes Corrective Actions

Iftherearlevelofthefloorislowerthanthefrontleveloftheflooritcanrsquotbeleveled

Front Rear

bull Onlyusethefrontlegstoadjustthelevel

bull Usethelegsupportstoadjustthelevelof the rear

bull Ifthefloorisonasteeplyslopepleaseuse the additional leg supports

bull Customercanpurchasethelegsupports from a service center

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

PCB Diagram _ 29

5 PCB DIAgRAM

5-1 MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 TE8 Motor Control Control to Motor

2 RY1 Main Relay Main Power Relay

3 F1 FUSE Limit the Over-Current

4 BD1 MakingDCVoltage ItworkstoChangetheACtotheDC

5 CE6 Charging Voltage ChargetheDCLINK(300V)

Location Part No function Description

6 IC1 Switching IC MakingastableDC

7 TE6 Trans Circuit ChoppingtheDCLink

8SSR1~6TRIAC1~2

Load Control TurnONOfftheLoad(Valveetc)

9 Q5RY2DoorLockSwitchDriving Circuit

bullDrivetheDoorLockSwitchbullToggleCWCCW

10 IC6 Driving CircuitDrive the SSR or RelaybullSupplytheCurrenttotheActingCurrent

2

6

7

4

3 5

1

89

10

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

30 _ PCB Diagram

5-2 DeTAILeD MANuAL foR CoNNeCToR AND ReLAy TeRMINAL PART - MAIN PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN11 AC12 AC23 AC2-1

CN31 Motor_U2 Motor_V3 Motor_W

CN91 5V2 Hall_A3 Hall_B4 GND

CN81 DoorLockMotor2 DoorLockMotor3 GND4 UnlockContact5 LockContact6 Reed Switch7 5V_1

CN51 Water Level2 Standby3 TX4 RX5 Sub Reset6 5V7 GND8 12V9 Power On

CN41 Bleach Valve2 Rinse Valve3 Hot Valve4 Cold Valve5 Pump6 NC7 Mist Valve8 Clutch

CN101 5V2 GND3 Wash heater

CN61 Flash Micom

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

PCB Diagram _ 31

5-3 SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

Location Part No function Description

1 Micom201 Control Function ControlKeyandLEDFunction

2 SW601 JogDial JogDial

3 CN802 Wash Communication Part ConnectwashMainPBA

4 CN501 Conecting Sensing Part ConnectingThermistorcluchWaterLavelandMemsSensor

5 LED LED Lamp Display Function

6 BZ601 Buzzer Makingasound

7 SW701~SW708SW201 Switch Operating or changing Function

8 DSP701 LED Display Display Funciton

63 4

5

12

7

7

7

7

7

7

7 7 7

5

5 5 5

8

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

32 _ PCB Diagram

5-4 DeTAILeD MANuAL foR CoNNeCToR TeRMINAL PART - SuB PCB ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

CN5011 332 SPC_13 SDI_14 SDO_15 GND6 CS1_17 GND8WATER_THERM9CLUTCH_SEN10WATER_SEN111WATER_SEN212 5V13CLUTCH1415 GND

CN8021CLUTH2WL_MAIN3STANDBY4 TX5 RX6 RESET7 5V8 GND9 12V10 POWER_ON

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

Wiring Diagram _ 33

6 WIRINg DIAgRAM

6-1 WIRINg DIAgRAM ThisDocumentcannotbeusedwithoutSamsungrsquosauthorization

nRefeReNCe INfoRMATIoN

BLK BLACKBLU BLUEGRN GREENGRY GRAYNTR NATURALORG ORANGEPNK PINKRED RED

SKYBLU SKYBLUEVIO VIOLETWHT WHITEYEL YELLOW

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

34 _ Reference

7 RefeReNCe

7-1 MoDeL NuMBeR NAMINg RuLeS①

②③

④⑤

⑥

⑦⑧

⑨

Pro

duct Typ

eC

apacity

(by M

arket)

Intro Year

Serie

s F

eature

Table

IntroR

egio

nor T

YP

E

Colo

r

Buye

rG

rade

F-C

ode 1

F-C

ode 2

F-C

ode 3

Colo

rC

ode

WA

48

J7

70

0A

W

A2

① P

roduct typ

e (C

AN

NO

T C

HA

NG

E) A

uto W

ash

ing m

ach

ine (S

AM

SU

NG

rsquos G

uide Lin

e)

② M

arke

t Cla

im C

apacity

52

cuft

③ In

tro Ye

ar J - In

troYear 2

015 ④

Serie

s Gra

de 7

Hig

h

⑤Featu

re Ta

ble

7 P

rem

ium

Hot-

Cold

wate

r 0

Inverte

r Moto

r 7 Inve

rter M

oto

rActiv D

ual W

ash

0 D

rain

Pum

p

⑥ In

tro R

egio

n o

r TY

PE A

ndash NA

meric

a ⑦

Colo

r P ndash IN

OX

W ndash W

HIT

E

⑧ C

BU

⑨ B

uye

r A2 U

SA

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015

ThisServiceManualisapropertyofSamsungElectronicsCoLtdAnyunauthorizeduseofManualcanbepunishedunderapplicableInternationalandordomesticlaw

copy 2015 Samsung electronics CoLtd All rights reserved16 FEB 2015