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※As the structure of the automatic micro-computer washing machine is comparatively complicated, there areservice calls even if not defective. This section provides the information for exact trouble diagnosis andsuitable repair guide to help customers.

5-1. CAUTIONS FOR THE REPAIR AND REPLACEMENT

Please follow the instructions below for trouble diagnosis and parts replacement.

1) As the electric components are easily damaged by the electric charge from the resin part of thewashing machine or the human body, be sure to ground or remove the potential difference betweenthe human body and the washing machine by touching once the power supply plug if you need tocontact PCB parts for servicing.

2) As the parts on PCB are coated by urethane, they can not be tested by using the test bar of themeter. Check the normality by using the test mode method and then diagnose the trouble in anappropriate procedure.

5. TROUBLE DIAGNOSIS

Power PlugEarth Strap

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5-2. TROUBLESHOOTING

YES

YES

NO

NO

NO

NO

NO

NO

YES

YES

YES

YES

●If you plug in the power cord and turn Power S/W on, memorized data is displayed.If any data is not displayed, check the followings.

No Power ON

Rating voltageis suppliedcorrectly?

Apply ratingvoltage.(Check AC

220V.)

Power plugsecurely

connected?

Plug in thepower cord

securely.

Fuse blownout? Replace fuse.

Replacedefective PCB

ASS`Y.Power ON?

Replace defectivePCB ASS`Y

Is motorrotating

correctly?

OK

Replace defectivePCB ASS`Y

●Pressing a key does not give beep sounds while the indicator turns on, or the indicator doesnot show at all. Display turns on.

●Pressing a key does not give beep sounds while the indicator turns on, or the indicator doesnot show at all. Display turns on.

PCB ASS`Y is defective.Replace.

Unselected indicator turns on.

Replace defective PCBASS`Y.

Is motor rotatingcorrectly?

Replace defectivePCB ASS`Y.

OK

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5-2-1 Troubleshooting - Control Panel

●Pressing the select switch does not give beep sound and the indicator does not turn on.

YES

YES

NO

NO

Unselected indicator turns on.

※ When in an ERROR mode, that is, when "E" shows in the display, pressing any key is not valid.Turn POWER OFF and start again.

Power S/W ON?Turn Power S/W ON.(All select switches are

valid only when the PowerS/W is ON.)

S/W contactsin good

condition?

Defective contacts ofTACT S/W. Replace

PCB ASS`Y.

Replace detectivePCB ASS`Y

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5-2-2 Troubleshooting - Driving Unit

The description below is based on the condition that Power Supply Unit and Key-In Unit areworking correctly. It is based on the status after a Start key is pressed.

1. No Water Supply

YES

YES

YES

YES

YES

YES

YES

YES

YES

YES

NO

NO

NO

NO

NO

NO

NO

NO

No W/S(water supply)

Start/Pauseis pressed after

selecting acourse?

Press Start/Pause key.

W/S valve givesZee sound during

water supply?

Watertap is

opened?Open the water tap.

Connect the terminalfirmly.

W/S valveterminal issecurely

connected?

Watersupply hasbeen cut

off?

Turn off the water tapand turn Power OFF.

W/S valveis electricallycontinuous?

Foreignmaterials existon W/S hose

or valve?Clean the filter by using

a brush.

W/S valve iselectrically

continuous?

Replace defective W/Svalve.

Is pulsatorrotating?

Replace defective LevelSensor.

Replace defectivePCB ASS`Y.

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2. Water Supply does not stop and the washing process does not start either.

NO

YES

YES

YES

YES

NO

NO

Water Supply does not stop.

Moisture inwater level

sensor hose?Air is leaking. Check thesealed area and apply

adhesives on it.

Water levelsensor hose

is bent?

Position the water levelsensor so as not to be bent.

Unplug the power cord whilewater supply keeps going on.

Drain valve ONand water out to

drain hose?Check the drain

valve.

Remove foreign materialslike threads, hair pin,

buttons, etc.

Replace defectivePCB ASS`Y.

3. Water Supply does not stop but the washing process starts to operates.

YES

YES

NO

NO

Wash starts but water supplynot stop.

Water LevelSensor terminal is

securelyconnected?

Connect terminalssecurely.

Washing isgoing on?

Turn Power OFF andstarts to operate again.

Replace defectivePCB ASS`Y.

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4. Pulsator does not rotate.

YES

NO

NONO

NO

NO

NO

YES

YES

YES

YES

NO

NO

YES

YES

YES

YES

NO

NO

YES

Pulsator does not rotate.

Replace defectivePCB ASS`Y.

W/S stopped aftersupplying to

selected level?

Water Level Sensorterminals securely

connected?

Replace defectiveWater Level Sensor.

Does thedisplay "7E"

shows?Connect terminals

securely.

Water issupplied? OK

Replace defectivePCB ASS`Y.

Does the display"7E" show afterblades rotating?

Remove foreignmaterials.

Any foreignmaterials

between blades?

HALL SENSORterminals securely

connected?Replace defectiveHALL SENSOR.

Connect terminalssecurely.

Pulsator isrotating

correctly?

Check motor for shortageand replace if defective.

Pulsator isrotating

correctly?OK.

OK.

Pulsator isrotating

correctly?

Replace defectivePCB ASS`Y.

Replace defectivePCB ASS`Y.

Replacedefective

motor.

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5. Abnormal sounds are heard during washing.

NO

NO

YES

YES

YES

NO

NO

YES

YES

Abnormal sounds are heardduring washing.

Abnormal soundsare from the

washing tub inside?

Any foreign materialsbetween the washing

tub and blades?

Remove foreign materialsaround the washing tub and

blades.

Bad assembly of Pulsatorblades. Adjust the gap.

Noise fromClutch?

Noise fromMotor?

Noises are from contacts ofClutch inside or deformation

due to abrasion.

Break Lever isproperly

adjusted?

Noise from Motorbearing abrasion.

Check other parts inside.Check screws of securing Motorand Motor PulleyCheck Motor Pulley choking status.Check other parts inside.

※ This not a problem.The 'Sha-ah' sounds may be heard when the Spin tub comes to a halt but that isnot problem of the washing machine as they are coming from normal waterflowing inside the spin tub by auto balancing function.

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NO

NO

NO

NO

NO

NO

YES

YES YES

NO

YES

NO

NO

NO

YES

YES

NO

NO

NO

NO

YES

YES

NO

YES

YES

YES

NONO

NO

YES

YES

YES

YES

YES

NO

6. No Spinning

No Spinning

Is it draining?This is normal as

designed to drain beforespinning.

Pulsatorblades arerotating?

Drain motormakes operating

sounds?Improper adjustment ofClutch part. Repair it.

Adjust tension ofthe V-belt.

V-belt tension istoo strong or too

weak?

Drain motorshows

continuity?Replace Drain

Motor.

Educate customerto close the lid. Is the lid open?

Drain Motoroperable as asingle unit?

Replace defective drainmotor lead wires.

Check and adjustsafety switch.

Safety S/Wterminal is lifted

up when lidclosed?

Improper adjustment ofClutch part. Repair it.

Replace safetyS/W.

Terminals of safetyS/W COM and DOOR

continuous?

Unbalance 1st, 2ndtimes automaticallydose waterSupply→Wash.

Unbalance status?

Replace defectivePCB ASS`Y.

Display "7E"ERROR?

HALL SENSORterminals securely

connected?Replace defective

HALL SENSOR.

Any foreignmaterials between the

spin tub and TUB?

Spin tub is rotatingcorrectly?

Remove foreignmaterials. Any foreign

materials between thespin tub and TUB?

Spin tub isrotating correctly? OK.

Spin tub isrotating correctly?

OK.

Replace defectivePCB ASS`Y.

Check motor lead wire.

Spin tub isrotating correctly?

Replace defectivePCB ASS`Y.

Motor is defective

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7. No Draining

YES

YES

YES

YES

YES

YES

NO

NO

YES

NO

NO

NO

YES

YES

NO

NO

NO

NO

YES

No Draining

Drain hoseis put down? Put down the drain

hose.

Drain hoseis bent?

Position the hoseproperly.

Press Start/Pause key 3 or4 times in Drain ·Spin

mode.

Drain Motormakes operating

sounds?

Connect themsecurely.

Spring joining Drainvalve and Motor

deviated?

Drain motor iscontinuous?

Replace defectiveDrain Motor.

Remove foreignmaterials.

Drain hole ofDrain hose is

blocked?

Drain Motorcan operate

alone?Replace Drain Motor.

Lead wire is defective.

Connect them securely.Wires aresecurely

connected?Any blockingmaterials in

Drain Valve?

Take out wash tub(spin tub).

Replace defectivePCB ASS`Y.

Any blockingmaterials in Drain

hole?

OK.