Download pdf - WASHING MACHINEpdf.lowes.com/useandcareguides/036725570214_use.pdf · 2012-06-30 · are OK, check water level. 9 dc Unbalance or cabinet bump is detected during final spin, which

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WASHING MACHINETechnical Information

Code No. : DC68-03011B_EN

• Duetopossibilityofpersonalinjuryorpropertydamage,alwayscontactanauthorizedtechnicianforservicingorrepairofthisunit.

• RefertoServiceManualfordetailedinstallation,operating,testing,troubleshooting,anddisassemblyinstructions.

AllsafetyinformationmustbefollowedasprovidedinServiceManual.

CAUTION

Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.

WARNING

(Technical information)WF501ANWX-03011B_EN.indd 1 2011-06-24 �� 6:20:23

ALIGNMENT AND ADJUSTMENTS

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GENERAL ERROR FUNCTION

NOError Code

(Diagnostic Code Error Image)

Description Corrective Action

1 nd ThewaterlevelfailstodropbelowtheResetWaterLevelwithin15minutes.

Goto“WillNotDrain”TroubleshootingSection.

2 Lo DoorfailstoUnlockAfter7attempts. Goto“WillNotUnlock”TroubleshootingSection.

3 nFWhenthefillingContinuesformorethan40minutesorthereisnochangeofwaterlevelfor6minutes.

Goto“NoWaterFill”TroubleshootingSection.

4 FL Doorfailstolockafter7attempts. Goto“WillNotLock”TroubleshootingSection.

5 LEAwaterlevellowerthantheResetwaterlevelisdetectedfor5secondsduringtheWash/Rinsecycle.

Goto“NoWaterFill”TroubleshootingSection.

6 1E Waterlevelsensorproblem. GOyo“NOWaterFill”Troubleshootingsection

7 dL Doorisunlockedwhenwasherisrunning.

PressthePowerbuttontoturnoffyourwasher,thenrestartthecycle.Ifthecodereappears,callforservice.

8 OE

Afaultisdetectedinthewaterlevelsensor.Data(frequency)showsthewaterlevelisatorabovetheoverflowwaterlevel.(Whenthisconditionisdetected,themachinewillautomaticallystartsdrainingwateruntilthewaterlevelfallsbelowtheresetwaterlevel)

Firstchecktoseethatallofwatervalvesarenotstuck.IfwatervalvesareOK,checkwaterlevel.

9 dc

Unbalanceorcabinetbumpisdetectedduringfinalspin,whichpreventsthedrumfromspinningover150rpm.(Neverexceeds150RPMduetounbalancedload)

Goto“WetClothes”TroubleshootingSection.

10 E2JammedKey.(Whenkeyinputsignalsarecomingoutformorethan30seconds,itisregardedasajam.)

Checkallofkeys.IfAkeyissensedtobepressed,allkeyswilldonotrespond.


WARNING



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NOError Code

(Diagnostic Code Error Image)

Description Corrective Action

11 dS Doorisdetectedasopenwhileitistryingtolockthedoor.

Goto“QuickTestMode”andthendoDoorLock/UnlockTest

12 tEAbnormalhigh/lowtemperatureorresistance(ThermalsensororPBAresistance).

Goto“BoardInputTest”andcheckWaterTemperature.Checklooseorpinchedwires.ReplacePCBorthermistor.

13 3E Motorproblem restartthecycleifthecodereappears,callforservice

14 Hr HeaterRelayFailure(NoHeaterRelayCheckSignal) ReplacePCB

15 nF1 Thehot/coldwaterhoseconnectionisnotcorrect.

Pleaseconnectthehot/coldwaterhoseconnectioncorrectly.

16 2E Voltageformotorcontrolbusisoverorunderspecifiedlimit. ReplacePCB

17 Suds

Sudsisdetectedduringthewashingsession.(“SUdS”isnotanerror.Ifthewasherisinsudsperiod,“SUdS”willlightupinsteadofremainingtime.)

Guideausertoreduceamountofdetergentusage.

18 AE CommunicationerrorbetweenSUBPBAandMAINPBA

CheckMainPBA, SUBPBA&Wire-harness.ReplacePCB

19 8E1 FrontMEMSsensorproblemCheckMEMSSensor,MANIPCB&WIREHarness

20 8E2 RearMEMSsensorproblemCheckMEMSSensor,MANIPCB&WIREHarness


WARNING



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TEST MODETest Mode:EachTestModefortheGRACEisasfollowsinthecomingpages.Thetestmodesindicatedbytheredarrowsaremodesunabletogetanaccessoncethewashingcyclehasstartedduetosafetyresons.

Quick Test Mode

Definition of Quick Test Mode:- CheckoperationofallLED’s(VerifyfaultyLED).- Checkmodelandsoftwareversion.- Checkdifferentoperatingmodes(e.g.watervalve,motor,door,drainpump,etc.).How to Enter:- Plugintheunit.- PressSoilKey,SpinKeyandPowerKeyatthesameTime.


WARNING

Special Test Mode

Power Off State

Quick Test Mode

EEPROM ClearMode

Continuous CycleMode

Service Mode

Demo Mode

Quick Spin Test Mode

Cycle Count Check Mode

S/W Version Check Mode

Fast Time Down Test Mode

Board Input Test Mode

Diagnostic Code CheckMode

Power On State(Normal User Mode)



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Quick Test Mode:1. AllLED’slightupanditsendsoutBeepSoundwhenit

entersintotheQuickTestMode.(Including7-Segment)2. DisplayssoftwareversionforasecandClearEEprom.(Ex.If

S/WVersionis49,7-SegmentwilldisplayL349)3. Whentheversionisdisplayed,turntheJog-Dialsothat

theversiondisappears.Pressthefollowingkeystotestthevariouscomponents. -TempKey:WaterValveTest -SpinKey:DoorLock/UnlockTest -SoilKey:WaterHeaterTest -IntensiveWash:DrainPumpTest

EEPROM Clear CheckDefinition of EEPROM Clear Mode:- EEPROMinitialization.- Allcourse/optionsettingsaretoberesettodefault

valuesafterEEPROMinitialization.- WhenServicearisesanditneedsPCBreplacement,

EEPROMshouldbereset.How to Enter:- Theunitneedstobeon.- PressDelayStartKey,andPowerKeyatthesame

time.


WARNING



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Continuous Run Mode

Definition of Continuous Run Mode:- WillcontinuouslyrepeatthecurrentcycleuntiltheContinuousRunModeiscancelled.How to Enter:- PressTemp+IntensiveWashKeytogetherfor7sec.Continuous Run Mode:1. PressTemp+IntensiveWashKeyfor7secduringPowerOnState(NormalUserMode).2. OnceinContinuousRunMode,Thesevensegmentswillnolongerdisplay“0000”andwillalternate

betweendisplayingthenumberofcyclesofthecompletedcourseandtheremainingtimeofthecourse.3. TheContinuousRunModewillrepeatthepreviouscycleuntilcontinuousrunmodeiscancelled.4. DuringContinuousRunMode,presstemp+spinKeyfor7sectoreturntonormalusermode.The

sevensegmentswillnolongerdisplaythenumberofcyclesandwilldisplaythemaintenancetimeonly.

5. IfyouexitServiceModeafterenteringitfromContinuousMode,thewashingmachinereturnstoContinuousMode.

6. IfpowerislostinContinuousRunMode(thatis,whenthepowerplugisdisconnectedorthePowerkeyispressedturningthewashingmachineoff),themodeisreleasedwhenthewashingmachineisturnedonagain.

Service ModeDefinition of Service Mode:- ServiceModeenablesservicetechnicianstoverifytheoperationofthewashingmachineand

dotroubleshooting.- ServiceModecanbeenteredduringallwashingcyclewithoutinterruptingthecycleexcept

someoftestmodes.- VarioustestscanbedonewithServiceMode.So,troubleshootingcanbedonebasedonthe

resultingdiagnosticcodes.How to Enter:- ToentertheServiceMode,presstheSignalandExtraRinseKeysfor3secondsoruntiltheunit

sendsoutbeepingsounds.


WARNING



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Service Mode

Service Mode:1.ThewashermustbeontogointotheServiceMode.2.Themotorspeedwillbedisplayedwhenstarted(Itdisplays0whenthemotordoesnotspin).3.Thepresentstateofthemachinewillnotbechanged.

(i.e.,thecurrentcycleinprogresswillnotbeinterruptedandonlythedisplaywillchange)4. ToexitServiceMode,pressSignalandExtraRinseKeysfor3secondagain,orPowerKey.Ifnokey

isoperatedduringServiceModefor5minutes,themachinewillreturntonormalusermode.

Quick Spin Test Mode

Definition of Quick Spin Test Mode:- QuickSpinTestModeistodoSpinCheck.(HighRPM)How to Enter:- DuringServiceMode,presstheDelayStart+RinseAddKeysfor3secondstoenterQuickSpin

TestMode.- Cannotenteroncethewashingcyclehasstarted.Quick Spin Test Mode:AsitentersintotheQuickSpinTestMode,itstartsspinningandreachestoitsmaximumRPM.OncetheSpinspeedreachesthemaximumRPM,thespeeddropsimmediately.ToholdQuickSpinTestMode(enteringHoldSpeedMode),presstheStart/Pausebutton.IftheStart/PausebuttonispressedduringQuickSpinTestMode,itwillstopacceleratingandholditsspinningspeedfor10minutesbeforegoingbacktoQuickSpinTestMode.Also,tocanceltheholdandallowQuickSpinTestModetocontinue,presstheDelayStart+RinseAddKeystogetherfor3seconds.IfyouholddowntheDelayStart+RinseAddkeysforthree(3)secondswhenthewashingmachineisnotinHoldSpeedMode,QuickSpinModeisexitedandServiceModeisrestored.


WARNING



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Cycle Count Check Mode

Definition of Cycle Count Check Mode:- CycleCountCheckModeistotallyupthenumberofwashings.How to Enter:- ToentertheCycleCountCheckMode,presstheSignalKeyduringServiceMode.Cycle Count Check Mode:1. ActivatetheServiceModeinadvance.2.WhentheSignalkeyispressed,thetotalnumberofwashingswilllightupandasignalLEDwill

glow.3.Themaximumnumberofcycleswillbe1999.

Thecounterwillrolloverto0andstartcountingagainafter1999.4.Thecountingwillbecarriedoutattheendofthenormalcycle.

(FornormalandContinuousRuncycles,thecountiscarriedoutattheendofthecycles.5. ToexittheCycleCountCheckMode,pressthe“Signal”keyagain.

S/W Version Check ModeDefinition of S/W Version Check Mode:

- S/WVersionCheckModeistobringupS/WVersioninformation.How to Enter:- ToentertheS/WVersionCheckMode,presstheSoilLevelKeyduringServiceMode.S/W Version Check Mode:1. ActivatetheServiceModeinadvance.2. PresstheSoilLevelKeytobringupitssoftwareVersion

EX)GenerateL349atVersion49(L3isMicomcode,49isit’ssoftwareversion)3. ToexittheS/WVersionCheckMode,presstheSoilLevelS/Wonceagain.

Then,itreturnstotheServiceModewithmotorRPMilluminating.


WARNING



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Fast Time Down Test Mode

Definition of Fast Time Down Test Mode:- FastTimeDownTestModeistoforwardtheprogramtothenextcyclestage.How to Enter:- ToentertheFastTimeDownTestMode,presstheTempkeyduringServiceMode.Fast Time Down Test Mode:1. ActivatetheServiceModeinadvance.2. Toforwardtheprogramtothenextcyclestage,presstheTempkey.Each stage is located at key points of a complete cycle as follows:- EndofEachFill(BeginningofWashorRinseTumbleSession)

Caution:CheckifthecurrentwaterlevelishigherthantheResetwaterlevelandthenperformtheFasttimedowntest.

- BeginningofDrainSession- BeginningofSpinSession(Here,itchecksthewaterlevel.So,ifitisovertheresetlevel,itcarries

outdrainingbeforethespinning.)- BeginningofFillSession- BeginningofBleachFill- BeginningofFabricSoftenerFill- Every3minutesduringWashandRinseTumbleSession


WARNING



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Board Input Test Mode

Definition of Board Input Test Mode:- BoardInputTestModeistodisplaysaspecifiedinputafterakeypress.How to Enter:- ToentertheBoardInputTestMode,presstheExtraRinsekeyduringServiceMode.Board Input Test Mode:1. ActivatetheServiceModefirst.2. PressthekeytostartBoardInputTest.3.TurntheJog-DialsothatthenormalcourseLEDisturnedon,andTheWaterTemperaturewillbe

displayedinCelsius.4.TurntheJog-DialsothattheHeavydutycycleLEDisturnedon,TheWaterTemperaturewillbe

displayedinFahrenheit.5.TurntheJog-DialsothatthePermPresscycleLEDisturnedon,Thedoorstatuswillbedisplayed

(OPifopen,CLifclosed).6. TurntheJog-DialsothattheSanitizeLEDisturnedon,TheDoorLockSwitchstatuswillbe

displayed(ULifunlocked,LOiflocked).


WARNING



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Diagnostic Code Check Mode

Definition of Diagnostic Code Check Mode:- DiagnosticCodeCheckModeistobringupthestoreddiagnosticcodes(referecodesforservice

technicians).How to Enter:- ToentertheDiagnosticCodeCheckModewithcode“d”flashing,presstheSpinkeyduring

ServiceMode.Board Input Test Mode:1.ActivatetheServiceModefirst.2. Pressthe“Spinkey”keytostartErrorCodeCheckModewithCode“d”flashing.3. Tocyclethroughtheerrorcodes,turntheRotaryCycleSelectorinonedirection(either

ClockwiseorCounterclockwise).4. Now,whenturningtheRotarySelectorKeyinthesamedirection,itshowserrorcodesfromthe

latest.5. Whenturningitintheoppositedirection,itshowstheerrorcodesinthereverseorder.


WARNING

Service Mode Spin Diagnostic Code



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Demo Mode

- DemomodeisenteredwhentheDelayStart+SoilLevelbuttonsarehelddownforfive(5)secondssimultaneouslyinthepoweronstate.

- WhenenteringDemomode,thebuzzerringsthree(3)timesand“----”isdisplayedonthe7segmentdisplayandallotherLEDsareturnedoff.(InitialDemomode)

- DemomodeconsistsofWASH,SPINandLEDmodes.- IftheTempbuttonispressedduringtheinitialDemomode,“WASH”blinksonthe7segment

displayandthewashingmachineentersWASHmode.- IftheStart/PausebuttonispressedinWASHmode,thedoorislocked(DoorLock)andthemotor

rotatesleftandrightat45RPMina7seconand3-secoffcycle.- WASHmodecontinuesuptofive(5)minutesoncestarted.Afterthefive(5)minuteshave

elapsed,“----”isdisplayedonthe7segmentdisplayandtheinitialDemomodeismaintained.- IftheStart/PausebuttonispressedduringaWASHmodeoperation,“----”isdisplayedonthe7

segmentdisplayandtheinitialDemomodeismaintained.- IftheSpinbuttonispressedintheinitialDemomode,“Spin”blinksonthe7segmentdisplay

andthewashingmachineentersSPINmode.- IftheStart/PausebuttonispressedintheSPINmode,thedoorislocked(DoorLock)andaspin

isoperatedat1150RPM.Whenthespeedreaches0RPM,theNoSpin,Low,Medium,High,andExtraHighLEDsareturnedon.

- Duringaspinoperation,theNoSpinLEDturnsonwhenthespeedislowerthan400RPM.TheLowLEDturnsonbetween400RPMand700RPM.TheMediumLEDturnsonbetween700RPMand900RPM.TheHighLEDturnsonbetween900RPMand1100RPM.AllspinspeedLEDturnoffmorethan1100RPM.

- SPINmodecontinuesuptofour(4)minutesoncestarted.Afterthefour(4)minuteshaveelapsed,“----”isdisplayedonthe7segmentdisplayandtheinitialDemomodeismaintained.

- IftheStart/PausebuttonispressedduringaSPINmodeoperation,“----”isdisplayedonthe7segmentdisplayandtheinitialDemomodeismaintained.

- ForLEDmode,useSOILLEVELkey.- IftheStart/PausebuttonispressedinLEDmode,allLEDsareturnedon.TheLEDmode

continuesuptothirty(30)secondsoncestarted.Afterthethirty(30)secondshaveelapsed,“----”isdisplayedonthe7segmentdisplayandtheinitialDemomodeisentered.

- IftheStart/PausebuttonispressedduringanLEDmodeoperation,“----”isdisplayedonthe7segmentdisplayandtheinitialDemomodeisentered.


WARNING


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TROUBLE DIAGNOSIS- Asthemicomwashmachineisconfiguredofthecomplicatestructure,theremightbethe

servicecall. Belowinformationispreparedforexacttroublediagnosisandsuitablerepairguide.

Caution for the Repair and Replacement

Pleasefollowbelowinstructionforthetroublediagnosisandpartsreplacement.

1) Assomeelectroniccomponentsaredamagedbythechargedstaticelectricityfromtheresinpartofmachineorthehumanbody,preparethehumanbodyearthorremovethepotentialdifferenceofthehumanbodyandmachinebycontactingthepowersupplyplugwhentheworkcontactingtoPCBisexecuted.

2) SinceAC120VisappliedtothetriacT1andT2onP.C.B,theelectricshockmayoccurbytouchingandbecarefulthatthestrongandweakelectricityaremixed.

3) AstheP.C.Bassemblyisdesignedfornotrouble,donotreplacetheP.C.Bassemblybythewrongdiagnosisandfollowtheprocedureofthetroublediagnosiswhenthemicomisnotoperatednormally.

TROUBLE SHOOTING


WARNING


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TROUBLE DIAGNOSISWill Not Start• Plugtheunitintothewalloutlet.Checkforpropervoltage.• Checkfuseorresetcircuitbreaker.• PushanykeytoturnonthewasherandpresstheStart/Pausekeytorunthewasher.• ClosedoorandpushtheStart/Pausekeytorunthewasher.• Checkifwasherisinapause,soakorsudsprocess.Waitbrieflyanditmaystart.(Ifthewasherisinsuds

period,Sudswilllightupinsteadofremainingtime.)• Checkforrestricteddrainsystem.(Ifthereiselectricalproblemindrainsystem,“NODraining”errorwilloccur

after15minutes.)• CheckWaterSupply.• Checkthelineorwatervalvescreenfilter.• CheckifPCBconnectorsareassembledproperly.• CheckifCN6terminalsonPCBareingoodcondition.(RefertoPCBConnectorCheck.)• ReplacePCB.Leaking• Makesureinlethoseconnectionsarenotleaking.Checkforrubbergasketdamageduetoovertightening.• Checkstandpipeforleak.Wrapadryragaroundthestandpipeopening.

Ifragbecomeswet,leakisfaultofhomeplumbing. Besurethestandpipeiscapableofacceptingtheflowofwaterfromthewasher.

• Makesureendofdrainhoseiscorrectlyinsertedandsecuredtodrainstandpipe.• Checkinternalhoseconnections(fill,drainsystems,dispenserhoses&clamps).• Checkrubberboot.Remove,repositionandreinstall,ifnecessary.• Checkforpossiblekinkeddispensertooutertubhose.Hotwaterpressurizationmayforcedooropen.No Tumble• Startnormalcyclewithanemptymachineandallowafilltochecktumble.• PerformQuickSpinTest.(Beforetest,makesurethatthetumblerisempty.)• CheckforlooseconnectionsatMachineControlBoard,PressureSwitch,Motor,TachHarnessandMotor

Control.(Refertothecomponenttestingprocedure)• Checkmotorwindingsresistance. CN8pins1&3=11.6ohms±7%, Pins1&2=11.6ohms±7%, Pins2&3=11.6ohms±7%• FaultyMainControlBoard.• Faultymotor.Will Not Spin• Makesuretoclosethedoorcompletely.• Checkforwaterleftinsidethewasher.Ifso,goto“WillNotDrain”.• PerformQuickTestModeorQuickSpinTest.Doesthewasherspin?(Beforethetest,emptytheunitinside.)

Ifitdoesn’ttumbleaftertheabove,changePCB.Whentheproblempersists,changethemotor.• PerformQuickTestModeorQuickSpinTest.Doesthewasherspin?Ifitdoes,CheckPossibleunbalanced

loadscenarioinnormalmode.• CheckforlooseconnectionsatPCB,WaterLevelSensor,Motor,HallSensorWireHarness.(CN7,CN5,CN6)

(RefertotheComponentTestingProcedure.)• Checkmotorwindingsresistance.(CN8Pin1&3=11.6ohms(at±7%20°C/68°F),

Pin1&2=11.6ohms(at±7%20°C), Pin2&3=11.6ohms(at±7%20°C))

TROUBLE SHOOTING


WARNING


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TROUBLE DIAGNOSISNo Water Fill• PerformQuickTestMode.CheckallofWaterValvesvisually.

(PreWashValve,ColdWaterValve,BleachWaterValve,SoftenerdispensesusingCold&BleachWaterValve,andHotWaterValve.)

• Checkifwatertapsareturnedonfully.• CheckWaterValvesandWaterLevelSensor(RefertoPCBConnectorCheck)• Checkifthereisanykinkininlethoses.• Checkifinletscreensarecloggedup.• Checkifwaterhasenoughpressure.Ifso,findoutitscontributors.• Checkifthereisanyfrozenareaintheunit(DrainHose,etc)• MeasuretheresistanceofWaterValveCoil.

(Itshouldread1.18Kohms.CheckPin#1ofCN6andPIN#1,2,7,8,9ofCN1)• CheckPressureS/WandPCBforlooseconnections.(RefertoPCBConnectorCheck.)Tub Full of Suds• Goto“WillNotDrain”and“WillNotSpin”andcheckthedraining.• CheckPCBandDrainPumpforanyloosewireconnection.• PerformQuickTestModeorBoardOutputTesttodrain.• UseHE(High-Efficiency)orlowsudsingdetergentspeciallyformulatedforfrontloadwashers.• Reducetheamountofdetergentforthatspecificloadsizeandsoillevel.Keepinmindthattowelcreates

moresudsgenerally.• Reducetheamountofdetergentwhenwaterissoft,orlaundryissmallorlightlysoiled.• Doonemorewashingcyclewithcoldwaterandatablespoonofsaltwithoutdetergent.Wet Clothes• Unbalanceduetonotenoughload.Putadditionalload.• Duetoexcessivesudsbyusinggeneraldetergent.UseHE(High-Efficiency)orreduceitsquantity.• LowSpinSpeedorDrainOnlywasselected.• Goto“WillNotSpin”.Will Not Lock• Doorisnotalignedorclosedproperly.• PerformQuickTestMode.CheckDoorLock.

ChecktheoutputvoltageofDoorLockCoil. Ifitreads120V,changeDoorLockSwitch,andifnot,changePCB.(RefertoPCBConnectorCheck.)

• ReadLockSwitchandPCB(CN6&CN1).(RefertoPCBConnectorCheck.)• TryDoorLockandcheckfor120VtoDoorLockConnector.If120Vpresent,changeMainControlBoardand

ifnot,changeDoorLockswitch.Will Not Unlock• Checkifthedoorisbeingpushedout,whichmaykeepitfromunlocking.• Doorlocksitselfwhenthewaterlevelistoohigh.Openingdoorwillresultinwaterdrainingfromdooropening.• CheckthefollowingwithBoardInputTestMode.

WaterLevel(frequency):Over23.80KHz. Ifso,referto“WillNotDrain”. Temperature(InsideDrum):Higherthan60ºC/140ºF. Ifso,waituntilitdrops. Wheneverythingisnormal,checkPCBconnectorsandDoorLockSwitch.

• Drainmanuallyafterremovingtheplasticdrainhoseholder.• Displayshows“Thedoorwillnotunlock”.Turnoffandontheunit.If“Thedoorwillnotunlock”keeps

illuminating,checkPCBandDoorLockSwitch.

TROUBLE SHOOTING


WARNING


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TROUBLE DIAGNOSIS• ReadLockSwitchandPCB(CN6&CN1).(RefertoPCBConnectorCheck.)• PerformQuickTestMode.CheckDoorLock.ChecktheoutputvoltageofDoorLockCoil.

Ifitreads120V,changeDoorLockSwitch,andifnot,changePCB.(RefertoPCBConnectorCheck.)No Key Operation• OptionandFunctionbuttonsresponddifferentlyaccordingtoeachcycle.• ChildLockisbeingactivated.Toexit,holddownSoilLevelKeyandSignalKeysimultaneouslyuntilitsends

outabeepingsound.• When“End“illuminatesonthedisplay,onlyPowerbuttonworks.PressPowerbuttonandmakenewcycle

selections.Will Not Drain• Checkforanykinkonthedrainhose.Ifany,straightitout.• Checkforanyrestrictioninthedrainhose.• ClosethedoorandpresstheStart/PauseButton.Forsafetyreasons,thewasherdoesnottumbleorspinwith

thedooropen.• Whenitisfreezingoutside,checkifitisfrozeninsidethedrainhose.• Checkifthewaterlevelsignalinputiscorrect.GotoBoardInputTestMode.• GotoQuickTestModeanddoDrainPumpTest.• Checkifthereisanytwistinthehose(theonebetweenTubandDrainPump).• CheckifitreadsAC120Vatthepumpwhenaspincycleisselected.• Readthewindingresistanceofthepumpmotor.(14.2±7%Ohms)• CheckthepumpatCN1(PIN3)onPCB.ItshouldreadAC110~120V.(RefertoPCBConnectorCheck)Wrong Water Temperature• Checkifbothofthewatertapsarefullyopen.• Makesurethedomesticwaterheaterissettodeliverwaterlowerthan120°F(49°C)hotwateratthetap.

Alsocheckwaterheatercapacityandrecoveryrate.• Ifthewaterheaterislocatedfarfromthewasher,screwoutthehotwatertapandletitswaterpassuntilyou

gethotwater.• TooHot/TooCold:ReducedamountofwaterissuppliedwhilePCBcontrolstheinfluxtoregulatetheactual

temperatureofthewaterinthetub.Thismayappeartobesignificantlyhotter/colderthanexpected.• Checkifthetemperatureselectioniscorrect.• DisconnectinlethosesfromtheWaterValveandremoveanyresidueintheinletscreens.Noisy and/or Vibration/Walking• Checkifthewasherisleveledandthelocknutsaretighteneduponthebottomplate.• Checkifalloftheshippingboltsandspacersareremovedfromthebackpanel.• Checkifloadisbigenoughandthereisnounbalance.Ifthereisnotenoughload,putinafewtowelstobalanceit.• Checkifthemotorisfastenedenough.• Removevarioustroublecontributors(suchasdustcoatonthefloor).Rubber Feet Leaving Marks on Floor• Useapencilerasertoremovemark.• Walkwasherintolocation,donotdrag.Additive Cups Full of Water• Smallamountofwaterinbottomofadditivecupsisnormal.• RemoveandwashDispenserTray,removableCup,andRinseCap.• Levelwasher.Buttons do not Respond• OptionandFunctionbuttonsresponddifferentlyaccordingtoeachcycle.• ChildLockfeaturehasbeenselected.TodisablefeaturepressandholdTempandSpinsimultaneouslyuntila

beepisheard.• Whendisplayshows“End”,onlythePowerbuttonwillfunction.PressPowerandmakenewcycleselections.

TROUBLE SHOOTING


WARNING


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Hall Sensor CheckCheckVoltageatPin#4and#3ofCN3TesterCheck=DC0Vor1.3VCheckVoltageatPin#4and#2ofCN3TesterCheck=DC0Vor1.3VMotor CheckResistanceatPin#1of#2ofCN8=12ΩResistanceatPin#2of#3ofCN8=12ΩResistanceatPin#3of#1ofCN8=12ΩDoor Lock CheckCheckVoltageatPin#1ofCN6andPin#5ofCN1WhenDoorLock=AC120VDrain Motor CheckCheckVoltageatPin#1ofCN6andPin#3ofCN1WhenDrainPumpoperates=AC120V

Water Valve CheckCheckVoltageatPin#1ofCN6andPin#1,2,7,8,9ofCN1WhenEachValveoperates=AC120VAC Power CheckCheckVoltageatPin#1and#2ofCN6CheckVoltageatPin#1CN2andPin#2ofRY1WASH Heater Relay CheckCheckVoltageatPin#1ofCN6andPin#2ofRY13WhenHeaterRelayoperates=AC120V

PROBLEM CHECKING AND METHOD OF PCB- IfyoupluginthepowercordandturnPowerS/Won,memorizeddataisdisplayed.

Ifanydataisnotdisplayed,checkthefollowings.

Thermistor CheckCheckVoltageatPin#4and#5ofCN6TesterCheck=DC1.6VIfitready5V,checkifitsconnectorisengagedproperly.

Water Sensor CheckCheckVoltageandFrequencyatPin#6and#5ofCN6Resetwaterlevel=DC1.6V,26.0KHzCheckVoltageandFrequencyatPin#7and#5ofCN6Resetwaterlevel=DC1.6V,26.0KHz

TROUBLE SHOOTING


WARNING


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Model: WF501AN*

WIRING DIAGRAM


WARNING


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WATER FLOW DIAGRAM


WARNING

