washing machine - lowes holidaypdf.lowes.com/operatingguides/036725569249_oper.pdf ·...
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1
WASHING MACHINETechnical Information
Code No. : DC68-03051A-01_EN
• Duetopossibilityofpersonalinjuryorpropertydamage,alwayscontactanauthorizedtechnicianforservicingorrepairofthisunit.
• RefertoServiceManualfordetailedinstallation,operating,testing,troubleshooting,anddisassemblyinstructions.
Models : WA5471*
WA5451*
AllsafetyinformationmustbefollowedasprovidedinServiceManual.
CAUTION
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 1 2011-05-30 �� 2:38:32
ALIGNMENT AND ADJUSTMENTS
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GENERAL ERROR FUNCTION
NOError Code
(Diagnostic Code Error Image)
Description Corrective Action
1 nd ThewaterlevelfailstodropbelowtheResetWaterLevelwithin30minutes.
Goto“WillNotDrain”TroubleshootingSection.
2 LO DoorfailstoUnlockAfter7attempts. Goto“WillNotUnlock”TroubleshootingSection.
3 nFWhenthefillingContinuesformorethan60minutesorthereisnochangeofwaterlevelfor6minutes.
Goto“NoWaterFill”TroubleshootingSection.
4 FL Doorfailstolockafter7attempts. Goto“WillNotLock”TroubleshootingSection.
5 LEAwaterlevellowerthantheResetwaterlevelisdetectedfor5secondsduringtheWash/Rinsecycle.
Goto“NoWaterFill”TroubleshootingSection.
6 1E
WaterLevelSensorTrouble.(Whentheinputsignalfromthewaterlevelsensorisoutofrange,theunitwillsendoutbeepingsoundsandhaltsthecycle.)
Goto“NoWaterFill”TroubleshootingSection
7 OE
Afaultisdetectedinthewaterlevelsensor.Data(frequency)showsthewaterlevelisatorabovetheoverflowwaterlevel.(Whenthisconditionisdetected,themachinewillautomaticallystartsdrainingwateruntilthewaterlevelfallsbelowtheresetwaterlevel)
Firstchecktoseethatallofwatervalvesarenotstuck.IfwatervalvesareOK,checkwaterlevel.
8 dc Unbalanceorcabinetbumpisdetectedduringfinalspin
Goto“WetClothes”TroubleshootingSection.
9 E2JammedKey.(Whenkeyinputsignalsarecomingoutformorethan30seconds,itisregardedasajam.)
Checkallofkeys.IfAkeyissensedtobepressed,allkeyswilldonotrespond.
10 ds Doorisdetectedasopenwhileitistryingtolockthedoor.
Goto“QuickTestMode”andthendoDoorLock/UnlockTest
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 2 2011-05-30 �� 2:38:32
ALIGNMENT AND ADJUSTMENTS
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NOError Code
(Diagnostic Code Error Image)
Description Corrective Action
11 TE1Thisoccurswhenthewatertemperaturesensorfaultisdetectedcontinuouslyfor5seconds.
Goto“BoardInputTest”andcheckWaterTemperature.Checklooseorpinchedwires.ReplacePCBorthermistor.
12 3E
MICOMisattemptingtodrivethemotorbutisnotgettinganyresponsesignalsfromthehallsensor.Visualcheckshowsmotorisnotrunning.(Locked,DefectiveHallSensororOverload)
Evaluatewireharnessforlooseorunhookedconnections.Goto“QuickTestMode”andtestMotor.
13 HE HeaterRelayFailure(NoHeaterRelayCheckSignal) ReplacePCB
14 nF1 Thehot/coldwaterhoseconnectionisnotcorrect.
Pleaseconnectthehot/coldwaterhoseconnectioncorrectly.
15 SUd
Sudsisdetectedduringthewashingsession.(“SUdS”isnotanerror.Whenitfinisheswashing,EndandtheSUdcodewillblinkinturn.)
Guideausertoreduceamountofdetergentusage.
16 AE CommunicationerrorbetweenSUBPBAandMAINPBA
CheckMainPBA,SUBPBA&Wire-harness.ReplacePCB
17PE
(ClutchMotorError)
Thiserroroccurswhenthepositionoftheclutchisnotdetected.-Ifthepositiondetectionsignalisnotreceived15secondsaftertheclutchmotorstarts,thespindrumisshakenleftandrightandthenthemotorisrestarted.Ifthemotorpositionsignalisnotreceivedevenafter3reattempts,aPEerroroccurs.
1.Checktheclutchmotor.2.Checktheassemblystatusoftheclutchmotor.3.Checkthewireconnectorterminals.
18PE1
(clutchhallsensorerror)
Afterthecompletionoftheclutchpositiondetection,andtheclutchhallsignalisinvalid,thespindrumisshakenleftandrightandthentheclutchhallsignalisevaluatedagain.This,iftheclutchhallsignalisstillinvalid,theclutchpositionswitchingstatusischeckedandthentheoperationisrestarted.(Ifthe15reattemptsfail,thiserroroccurs.)
1.Checktheclutchhallsensor.2.Checkthewireconnectorterminals.3.Checktheclutchswitchingstatus.-Checkthecouplingassemblyanddisassemblystatus.
19 8E
IftheoutputfromtheMEMSsensorisover4.5Vorunder0.5Vanditcontinuesfor5seconds,thiserroroccurs.
1.ChecktheMEMSsensorandPBA.2.Checkthewireconnectorterminals
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 3 2011-05-30 �� 2:38:32
ALIGNMENT AND ADJUSTMENTS
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TEST MODETest Mode:EachTestModefortheORCAisasfollowsinthecomingpages.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.- Pressspinkey,soillevelkeyandPowerKeyatthesameTime.
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 4 2011-05-30 �� 2:38:33
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Quick Test Mode:1. AllLED’slightupanditsendsoutBeepSoundwhenit
entersintotheQuickTestMode.(Including7-Segment)2. DisplayssoftwareversionforasecandClearEEprom.3. Whentheversionisdisplayed,turntheJog-Dialsothat
theversiondisappears.Pressthefollowingkeystotestthevariouscomponents. -TempKey:WaterValveTest -Signal:DoorLock/UnlockTest -SoilKey:WaterHeaterTest -Spin:Drain/circulationpumptest
EEPROM Clear CheckDefinition of EEPROM Clear Mode:- EEPROMinitialization.- Allcourse/optionsettingsaretoberesettodefault
valuesafterEEPROMinitialization.- WhenServicearisesanditneedsPCBreplacement,
EEPROMshouldbereset.How to Enter:- Theunitneedstobeon.- PressDelayStartKey,andPowerKeyatthesame
time.
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 5 2011-05-30 �� 2:38:33
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Continuous Run Mode
Definition of Continuous Run Mode:- WillcontinuouslyrepeatthecurrentcycleuntiltheContinuousRunModeiscancelled.How to Enter:- PressDelayStart+SoilLevelKeytogetherfor7sec.Continuous Run Mode:1. PressDelayStart+SoilLevelKeyfor7secduringPowerOnState(NormalUserMode).2. OnceinContinuousRunMode,Thesevensegmentswillnolongerdisplay“0000”andwillalternate
betweendisplayingthenumberofcyclesofthecompletedcourseandtheremainingtimeofthecourse.3. TheContinuousRunModewillrepeatthepreviouscycleuntilcontinuousrunmodeiscancelled.4. DuringContinuousRunMode,pressDelayStart+SoilLevelKeyfor7sectoreturntonormal
usermode.Thesevensegmentswillnolongerdisplaythenumberofcyclesandwilldisplaythemaintenancetimeonly.
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.
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 6 2011-05-30 �� 2:38:34
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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,presstheDelayStartandTemp.Keysfor3secondstoenterQuickSpin
TestMode.- Cannotenteroncethewashingcyclehasstarted.Quick Spin Test Mode:AsitentersintotheQuickSpinTestMode,itstartsspinningandreachestoitsmaximumRPM.OncetheSpinspeedreachesthemaximumRPM,thespeeddropsimmediately.ToholdQuickSpinTestMode(enteringHoldSpeedMode),presstheStart/Pausebutton.IftheStart/PausebuttonispressedduringQuickSpinTestMode,itwillstopacceleratingandholditsspinningspeedfor10minutesbeforegoingbacktoQuickSpinTestMode.Also,tocanceltheholdandallowQuickSpinTestModetocontinue,presstheDelayStartandTempKeystogetherfor3seconds.IfyouholddowntheDelayStartandTemp.keysforthree(3)secondswhenthewashingmachineisnotinHoldSpeedMode,QuickSpinModeisexitedandServiceModeisrestored.
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 7 2011-05-30 �� 2:38:34
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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)GeneratedE49atVersion49(dEisMicomcode,49isit’ssoftwareversion)3. ToexittheS/WVersionCheckMode,presstheSoilLevelS/Wonceagain.
Then,itreturnstotheServiceModewithmotorRPMilluminating.
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 8 2011-05-30 �� 2:38:34
ALIGNMENT AND ADJUSTMENTS
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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
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 9 2011-05-30 �� 2:38:35
ALIGNMENT AND ADJUSTMENTS
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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-Dialsothatthenormalcourseisturnedon,andTheWaterTemperaturewillbe
displayedinCelsius.4.TurntheJog-DialsothattheHeavydutycycleisturnedon,TheWaterTemperaturewillbe
displayedinFahrenheit.5.TurntheJog-DialsothatthePermPresscycleisturnedon,Thedoorstatuswillbedisplayed(OP
ifopen,CLifclosed).6. TurntheJog-DialsothattheRinse+SpinorQuickWashisturnedon,TheDoorLockSwitch
statuswillbedisplayed(ULifunlocked,LOiflocked).
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 10 2011-05-30 �� 2:38:35
ALIGNMENT AND ADJUSTMENTS
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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.
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
Service Mode Spin Diagnostic Code
WA5471ABP_03051A-01(Technical information).indd 11 2011-05-30 �� 2:38:36
ALIGNMENT AND ADJUSTMENTS
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Demo Mode
- DemomodeisenteredwhenthePureCycle+ExtraRinsebuttonsarehelddownforfive(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
isoperatedat1030RPM.Whenthespeedreaches0RPM,theNoSpin,Low,Medium,High,andExtraHighLEDsareturnedon.
- Duringaspinoperation,theNoSpinLEDturnsonwhenthespeedislowerthan400RPM.TheLowLEDturnsonbetween400RPMand700RPM.TheMediumLEDturnsonbetween700RPMand900RPM.TheHighLEDturnsonbetween900RPMand1030RPM.AllspinspeedLEDturnoffmorethan1030RPM.
- SPINmodecontinuesuptofour(4)minutesoncestarted.Afterthefour(4)minuteshaveelapsed,“----”isdisplayedonthe7segmentdisplayandtheinitialDemomodeismaintained.
- IftheStart/PausebuttonispressedduringaSPINmodeoperation,“----”isdisplayedonthe7segmentdisplayandtheinitialDemomodeismaintained.
- IftheStart/PausebuttonispressedinLEDmode,allLEDsareturnedon.TheLEDmodecontinuesuptothirty(30)secondsoncestarted.Afterthethirty(30)secondshaveelapsed,“----”isdisplayedonthe7segmentdisplayandtheinitialDemomodeisentered.
- IftheStart/PausebuttonispressedduringanLEDmodeoperation,“----”isdisplayedonthe7segmentdisplayandtheinitialDemomodeisentered.
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 12 2011-05-30 �� 2:38:36
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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
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 13 2011-05-30 �� 2:38:36
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TROUBLE DIAGNOSISWill Not Start• Plugtheunitintothewalloutlet.Checkforpropervoltage.• Checkfuseorresetcircuitbreaker.• PushanykeytoturnonthewasherandpresstheStart/Pausekeytorunthewasher.• ClosedoorandpushtheStart/Pausekeytorunthewasher.• Checkifwasherisinapause,soakorsudsprocess.Waitbrieflyanditmaystart.(Ifthewasherisinsuds
period,Sudswilllightupinsteadofremainingtime.)• Checkforrestricteddrainsystem.(Ifthereiselectricalproblemindrainsystem,“nd”errorwilloccurafter30
minutes.)• CheckWaterSupply.• Checkthelineorwatervalvescreenfilter.• CheckifPCBconnectorsareassembledproperly.• CheckifCN2terminalsonPCBareingoodcondition.(RefertoPCBConnectorCheck.)• ReplacePCB.Leaking• Makesureinlethoseconnectionsarenotleaking.Checkforrubbergasketdamageduetoovertightening.• Checkstandpipeforleak.Wrapadryragaroundthestandpipeopening.
Ifragbecomeswet,leakisfaultofhomeplumbing. Besurethestandpipeiscapableofacceptingtheflowofwaterfromthewasher.
• Makesureendofdrainhoseiscorrectlyinsertedandsecuredtodrainstandpipe.• Checkinternalhoseconnections(fill,drainsystems,dispenserhoses&clamps).• Checkrubberboot.Remove,repositionandreinstall,ifnecessary.• Checkforpossiblekinkeddispensertooutertubhose.Hotwaterpressurizationmayforcedooropen.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.(CN9,CN1,CN8)
(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
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 14 2011-05-30 �� 2:38:36
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TROUBLE DIAGNOSISNo Water Fill• PerformQuickTestMode.CheckallofWaterValvesvisually.
(ColdWaterValve,BleachWaterValve,SoftenerdispensesusingCold&BleachWaterValve,andHotWaterValve.)
• Checkifwatertapsareturnedonfully.• CheckWaterValvesandWaterLevelSensor(RefertoPCBConnectorCheck)• Checkifthereisanykinkininlethoses.• Checkifinletscreensarecloggedup.• Checkifwaterhasenoughpressure.Ifso,findoutitscontributors.• Checkifthereisanyfrozenareaintheunit(DrainHose,etc)• MeasuretheresistanceofWaterValveCoil.
(Itshouldread1.18Kohms.CheckPin#3ofCN6andpin#1.2.3.4ofCN4)• 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• PerformQuickTestMode.CheckDoorLock.
Checkthereistancefordoorlock.ifApprox0.2ohmbetweentheterminalofcontact(white-Redwire), andifnot,changepcb(refertopcbconnectorcheck).
• ReadLockSwitchandPCB(CN3).(RefertoPCBConnectorCheck.)Will Not Unlock• Displayshows“LO”.Turnoffandontheunit.If“LO”keepsilluminating,checkPCBandDoorLockSwitch.• ReadLockSwitchandPCB(CN3).(RefertoPCBConnectorCheck.)• PerformQuickTestMode.CheckDoorLock.ChecktheresistancefordoorunlockifApprox0.2ohmbetween
theterminalofcontact(white-bluewire),andifnot,changepcb(refertopcbconnectorcheck).
TROUBLE SHOOTING
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 15 2011-05-30 �� 2:38:36
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TROUBLE DIAGNOSISNo Key Operation• OptionandFunctionbuttonsresponddifferentlyaccordingtoeachcycle.• ChildLockisbeingactivated.Toexit,holddownSpinlevelkeyandsoillevelkeysimultaneouslyuntilitsends
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)• CheckthepumpatPin#3ofCN6andpin#7ofCN4onPCB.ItshouldreadAC110~120V.(RefertoPCB
ConnectorCheck)Wrong Water Temperature• Checkifbothofthewatertapsarefullyopen.• Ifthewaterheaterislocatedfarfromthewasher,screwoutthehotwatertapandletitswaterpassuntilyou
gethotwater.• TooHot/TooCold:ReducedamountofwaterissuppliedwhilePCBcontrolstheinfluxtoregulatetheactual
temperatureofthewaterinthetub.Thismayappeartobesignificantlyhotter/colderthanexpected.• Checkifthetemperatureselectioniscorrect.• DisconnectinlethosesfromtheWaterValveandremoveanyresidueintheinletscreens.Noisy and/or Vibration/Walking• Checkifthewasherisleveledandthelocknutsaretighteneduponthebottomplate.• Checkifalloftheshippingboltsandspacersareremovedfromthebackpanel.• Checkifloadisbigenoughandthereisnounbalance.Ifthereisnotenoughload,putinafewtowelstobalanceit.• Checkifthemotorisfastenedenough.• Removevarioustroublecontributors(suchasdustcoatonthefloor).Buttons do not Respond• OptionandFunctionbuttonsresponddifferentlyaccordingtoeachcycle.• ChildLockfeaturehasbeenselected.TodisablefeaturepressandholdTempandSpinsimultaneouslyuntila
beepisheard.• Whendisplayshows“End”,onlythePowerbuttonwillfunction.PressPowerandmakenewcycleselections.
TROUBLE SHOOTING
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 16 2011-05-30 �� 2:38:36
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Hall Sensor CheckCheckVoltageatPin#4and#3ofCN1TesterCheck=DC0.6VCheckVoltageatPin#4and#2ofCN1TesterCheck=DC0.6VMotor CheckResistanceatPin#1ofCN8andGND=280㏀ResistanceatPin#2ofCN8andGND=280㏀ResistanceatPin#3ofCN8andGND=280㏀Drain Motor_Pump CheckCheckVoltageatPin#3ofCN6andPin#9ofCN4WhenDrainPumpoperates=AC120VWater Valves/ CheckCheckVoltageatPin#3ofCN6andPin#1,2,3,4ofCN4WhenValvesoperates=AC120V
Clutch-MotorCheckVoltageatPin#3ofCN6andPin#8ofCN4WhenValvesoperates=AC120VPumpCheckVoltageatPin#3ofCN6andPin#7ofCN4WhenValvesoperates=AC120VHeater Relay CheckCheckVoltageatPin#1ofCN8andPin#1ofRY13WhenHeaterRelayoperates=AC120VAC Power CheckCheckVoltageatPin#1and#3ofCN6CheckVoltageatPin#1ofCN6andPin#2ofRY13TesterCheck=AC120VDoor Lock CheckCheckVoltageatPin#3and#5ofCN3WhenDoorLock=DC6.5V
PROBLEM CHECKING AND METHOD OF PCB- IfyoupluginthepowercordandturnPowerS/Won,memorizeddataisdisplayed.
Ifanydataisnotdisplayed,checkthefollowings.
Thermistor CheckCheckResistanceatPin#9and#7ofCN8TesterCheck=47㏀
Water Sensor CheckCheckFrequencyatPin#11and#7ofCN8Resetfrequency=25.6KHzCheckFrequencyatPin#12and#7ofCN8Resetfrequency=25.6KHz
TROUBLE SHOOTING
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 17 2011-05-30 �� 2:38:40
18
Model : WA5471*, WA5451*
WIRING DIAGRAM
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 18 2011-05-30 �� 2:38:40
19
WATER FLOW DIAGRAM
Toavoidriskofelectricalshock,personal injuryordeath;disconnectpowertowasherbeforeservicing,unlesstestingrequirespower.
WARNING
WA5471ABP_03051A-01(Technical information).indd 19 2011-05-30 �� 2:38:40
WA5471ABP_03051A-01(Technical information).indd 20 2011-05-30 �� 2:38:40