Trouble Shooting Guide

18
TROUBLE DIAGNOSIS
No Water Fill
• PerformQuickTestMode.CheckallofWaterValvesvisually.
(PreWashValve,ColdWaterValve,BleachWaterValve,SoftenerdispensesusingCold&BleachWaterValve,
andHotWaterValve.)
• Checkifwatertapsareturnedonfully.
• CheckWaterValvesandWaterLevelSensor(RefertoPCBConnectorCheck)
• Checkifthereisanykinkininlethoses.
• Checkifinletscreensarecloggedup.
• Checkifwaterhasenoughpressure.Ifso,ndoutitscontributors.
• Checkifthereisanyfrozenareaintheunit(DrainHose,etc)
• MeasuretheresistanceofWaterValveCoil.
(Itshouldread1.18Kohms.CheckPin#1ofCN6andPIN#1,2,7,8,9ofCN1)
• CheckPressureS/WandPCBforlooseconnections.(RefertoPCBConnectorCheck.)
Tub Full of Suds
• Goto“WillNotDrain”and“WillNotSpin”andcheckthedraining.
• CheckPCBandDrainPumpforanyloosewireconnection.
• PerformQuickTestModeorBoardOutputTesttodrain.
• UseHE(High-Eciency)orlowsudsingdetergentspeciallyformulatedforfrontloadwashers.
• Reducetheamountofdetergentforthatspecicloadsizeandsoillevel.Keepinmindthattowelcreates
moresudsgenerally.
• Reducetheamountofdetergentwhenwaterissoft,orlaundryissmallorlightlysoiLCD/LED.
• Doonemorewashingcyclewithcoldwaterandatablespoonofsaltwithoutdetergent.
Wet Clothes
• Unbalanceduetonotenoughload.Putadditionalload.
•
 Duetoexcessivesudsbyusinggeneraldetergent.UseHE(High-Eciency)orreduceitsquantity.
• LowSpinSpeedorDrainOnlywasselected.
• Goto“WillNotSpin”.
Will Not Lock
• Doorisnotalignedorclosedproperly.
• PerformQuickTestMode.CheckDoorLock.
ChecktheoutputvoltageofDoorLockCoil.
Ifitreads120V,changeDoorLockSwitch,andifnot,changePCB.(RefertoPCBConnectorCheck.)
• ReadLockSwitchandPCB(CN6&CN1).(RefertoPCBConnectorCheck.)
• TryDoorLockandcheckfor120VtoDoorLockConnector.If120Vpresent,changeMainControlBoardand
ifnot,changeDoorLockswitch.
Will Not Unlock
• Checkifthedoorisbeingpushedout,whichmaykeepitfromunlocking.
•
Doorlocksitselfwhenthewaterlevelistoohigh.Openingdoorwillresultinwaterdrainingfromdooropening.
• CheckthefollowingwithBoardInputTestMode.
WaterLevel(frequency):Over23.80KHz.
Ifso,referto“WillNotDrain”.
Temperature(InsideDrum):Higherthan60ºC/140ºF.
 Ifso,waituntilitdrops.
Wheneverythingisnormal,checkPCBconnectorsandDoorLockSwitch.
• Drainmanuallyafterremovingtheplasticdrainhoseholder.
• Displayshows“Thedoorwillnotunlock”.Turnoandontheunit.If“Thedoorwillnotunlock”keeps
illuminating,checkPCBandDoorLockSwitch.
TROUBLE SHOOTING
Toavoidriskofelectricalshock,personalinjuryordeath;disconnectpowertowasher
beforeservicing,unlesstestingrequirespower.
WARNING
(Techsheet)WF457AR-03152A-02_EN.indd 18 2012-12-13 11:22:56