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CLOTHES DRYER
Basic Model : DV220AEW/XAA
(BIGBANG PROJECT)
Model Name : DV231AEW DV231AGW
(BIGBANG2 PROJECT)
Model Code : DV231AEW/XAA
DV231AGW/XAA
SERVICE Manual
CLOTHES DRYER CONTENTS
1. Safety Instructions
2.FeaturesandSpecifications
3. Disassembly and Reassembly
4. Troubleshooting
5. Exploded views and Parts list
6. PCB diagram
7. Wiring diagram
8. Schematic diagram
DV231A**
Refer to the service manual in the GSPN (see the rear cover) for the more information.
CONTENTS
1. Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-1. Caution for safety during servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-2. Important safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. FeaturesandSpecifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2-1. Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2-2. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2-3. Comparingspecificationswithexistingmodels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2-4. Optionsspecifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3. Disassembly and Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3-1. Toolsfordisassemblyandreassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3-2. Standarddisassemblydrawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4-1. Error items and diagnostic codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4-2. Test mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4-3. Troublediagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4-4. Symptoms, diagnoses and actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4-5. Component testing procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5. Exploded views and Parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5-1. MAIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5-2. Ass'y Frame Front & Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5-3. Ass'yPanelControl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5-4. Ass'y Drum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
5-5. Ass'y Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
5-6. Ass'y Duct Heater (ELECTRIC MODEL ONLY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5-7. Ass'y Duct Burner (GAS MODEL ONLY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5-8. SmallParts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
5-9. PARTS LIST (SA/SC OTHER). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
5-10. PARTS LIST (SCREW TYPE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
6. Pcb Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
6-1. Main PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
6-2. Detaileddescriptionsofcontactterminals(mainpcb) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
6-3. SubPCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
6-4. Detaileddescriptionsofcontactterminals(subpcb) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
7. Wiring Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
7-1. Wiring diagram (ELECTRIC DRYER) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
7-2. Wiring diagram (GAS DRYER) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
8. Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
8-1. Maincontrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
8-2. Subcontrol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
1. SAfETY INSTRuCTIONS
1-1. CAuTION fOR SAfETY DuRING SERVICING
1. Donotallowthecustomertorepairtheproduct.
4 Thepersonmaybeinjuredortheproductlifemaybeshortened.
2. ExecuteA/Safterunpluggingthepowersupplyunit.
4 Becarefuloftheelectricshocks.
3. Donotplugseveralplugsinthesameoutlet.
4 Itmaycauseafireduetooverheat.
4. Checkfordamage,pinchingorburningofthepowerplugtheoutlet.
4 Replaceitpromptlyifithasaproblem.(Itmaycausetheelectricshocksorfire)
5. Donotcleanthemainbodywithwater.
4 Itmaycauseelectricshocksandfireandshortentheproductlife)
6. Thewiringharnessshallbefreefrommoistureandtightenedduringserving.
4 Itshallnotbedeviatedbycertainimpact.
7. Removeanydustordirtonthehousingsection,wiringsection,connectionsectionduringservicing.
4 Protectfrompossiblecauseoffiresuchasthetracking,shortageetc.
8. Checkforanymarksofmoistureontheelectricalparts,harnesssectionetc.
4 Replacethepartsorremovethemoisture.
9. Checktheassemblystatusofthepartsafterservicing.
4 Maintainthestatusbeforeservicing.
10.Pulloutthepowercordbyholdingtheplug.
4 Becarefulofelectricshocksandwhenthecordisdamaged.
11.Unplugthepowerplugfromtheoutletwhenthedryerisnotused.
4 Becarefulofelectricshocksandfireduetothestrikeoflightning.
12.Donotuseorstorespraysorflammablematerials(includinggasoline,alcoholetc.)aroundthedryer.
4 Becarefulofexplosionsorfireduetoelectricsparks.
13.Donotputbowlsofwaterorwetlaundryonthedryer.
4 Ifwaterhaspenetratedintothedryer,thismaycauseelectricshocksorfire.
14.Donotinstallthedryeroutsideexposedtomoisture.
4 Itmaycauseelectricshocksandfireandshortentheproductlife.
15.Donotpushthecontrolbuttonswithanawl,pin,orsharpmaterials.
4 Itmaycauseelectricshocksanddamage.
16.Checkthedryerisleveledhorizontallyandinstalledproperlyonthefloor.
4 Thevibrationmayshortentheproductlife.
Safety Instructions _ 1
1-2. IMPORTANT SAfETY INfORMATION
Toavoidriskoffire,electricshock,seriousinjury,ordeathwhenusingyourdryer,followthesebasicprecautions:
1. Readallinstructionsbeforeusingthedryer.
2. InstalldryeraccordingtoInstallationInstructions.RefertotheGroundingInstructionsintheInstallationInstructions
forpropergroundingofthedryer.
3. Donotdryarticlesthathavebeencleanedin,washedin,soakedin,orspottedwithgasoline,drycleaningsolvents,or
otherflammableorexplosivesubstances.Vaporscouldigniteorexplode.
4. Donotusethedryertodryclotheswhichhavetracesofanyflammablesubstance,suchasvegetableoil,cookingoil,
machineoil,flammablechemicals,thinner,etc.,oranythingcontainingwaxorchemicals,suchasmopsandcleaning
cloths.Flammablesubstancesmaycausethefabrictocatchfirebyitself.
5. Donotstoreorusegasolineorotherflammablevaporsandliquidsnearthisoranyotherappliance.
6. Donotallowchildrentoplayonorindryer.Closesupervisionofchildrenisnecessarywhenthedryerisusednear
children,asafetyruleforallappliances.
7. Beforethedryerisremovedforserviceorisdiscarded,removedoorstodryingcompartment.
8. Donotreachintothedryerifcylinderisrotating.
9. Donotinstallorstorethedryerwhereitwillbeexposedtowaterand/orweather.
10.Donottamperwithdryercontrols.
11.Donotrepairorreplaceanypartofthedryerorattemptanyservice,unlessspecificallyrecommendedinuser-
maintenanceinstructionsorinpublisheduser-repairinstructionsthatyouunderstandandhaveskillstocarryout,if
you are a consumer.
12.Toreduceriskofelectricshockorfire,donotuseextensioncordsoradapterstoconnectthedryertoelectricalpower
source.
13.Usethedryeronlyforitsintendedpurpose,dryingclothes.
14.Alwaysdisconnectthedryerfromelectricalsupplybeforeattemptinganyservice.Disconnectthepowercordby
holdingtheplug,notthecord.
15.Donotuseheattodryarticlescontainingfoamrubberorsimilarlytexturedrubberlikematerials.
16.Alwayscleanthelintfilteraftereveryload.Alayeroflintinthefilterreducesdryingefficiencyandprolongsdrying
time.
17.Useonlyfabricsoftenersorproductstoeliminatestaticthatareappropriateforautomaticdryers.
18.Keepyourdryeringoodcondition.Bumpingordroppingthedryercandamagesafetyfeatures.Ifdamageoccurs,
havethedryercheckedbyaqualifiedservicetechnician.
19.Replacewornpowercordsand/orlooseplugs.
20.Donottumblefiberglasscurtainsanddraperiesunlessthelabelsaysitcanbedone.Iftheyaredried,wipeoutthe
cylinderwithadampclothtoremoveparticlesoffiberglass.
21.Alwaysreadandfollowmanufacturersinstructionsonpackagesforlaundryaids.Heedallwarningsorprecautions.
Toreduceriskofpoisoningorchemicalburns,keepproductsawayfromchildrenatalltimes,preferably,inalocked
cabinet.
2 _ Safety Instructions
22.Neveroperatethedryerwiththeguardsand/orthepanelsremoved.
23.Donotoperatethedryerwithmissingorbrokenparts.
24.Donotbypasssafetydevices.
25.Keepareaaroundtheexhaustopeningandadjacentsurroundingareasfreefromaccumulationoflint,dust,anddirt.
26.Interiorofdryerandexhaustductshouldbecleanedperiodicallybyqualifiedservicepersonnel.
27.Thedryerwillnotoperatewithloadingdooropen.DONOTbypassthedoorsafetyswitchbypermittingthedryerto
operatewithdooropen.Thedryerwillstoptumblingwhenthedoorisopened.Donotusethedryerifitdoesnotstop
tumblingwhendoorisopenedorstartstumblingwithoutpressingorturningtheSTARTmechanism.Stopusingthe
dryerandcontactaqualifiedservicetechnician.
28.Removelaundryimmediatelyafterthedryerstops.
29.ALWAYSfollowthefabriccareinstructionssuppliedbythegarmentmanufacturer.
Electrical service information
ElectricalDryers 240VAC,60Hz,30Amps,3-wireor4-wireinstallations
Gas Dryers 120VAC,60Hz,15Amps,3-wireinstallations
WARNING
Toreducetheriskoffire,electricshock,seriousinjuryordeath,allwiringandgroundingmustconformwiththelatest
editionoftheNationalElectricCode,ortheCanadianElectricalCode,andsuchlocalregulationsasmightapply.Itis
thecustomersresponsibilitytohavethewiringandfusescheckedbyaqualifiedelectriciantomakesureyourhome
hasadequateelectricalpowertooperatethedryer.
WARNING
Toavoidriskofpersonalinjuryordeathduetoelectricalshock:
- Observealllocalcodesandordinances.
- Disconnecttheelectricalpowertotheunitbeforeservicing.
- Groundtheapplianceproperly.
- Checkwithaqualifiedelectricianifyouarenotsurethisapplianceisproperlygrounded.
- DONOTgroundtoagasline.
- DONOTgroundtoacoldwaterpipeifpipeisinterruptedbyplastic,nonmetallicgaskets,orotherinsulating
(nonconducting)materials.
- DONOTmodifytheplugonthepowercord.Ifplugdoesnotfitelectricaloutlet,haveproperoutletinstalledby
qualifiedelectrician.
- DONOThaveafuseintheneutralorgroundcircuit.Afuseintheneutralorgroundcircuitcouldresultinan
electricalshock.
- DONOTuseanextensioncordwiththisappliance.
- DONOTuseanadapterplugwiththisappliance.
- DONOTpinchthepowercord.
WARNING
Toreducetheriskoffireandexposuretocombustiongases,thedryerMUSTbeexhaustedtotheoutdoors.
DONOTexhaustdryerairintoawindowwell,gasvent,chimneyorenclosed,unventilatedarea,suchasanattic,wall,
ceiling,crawlspaceunderabuildingorconcealedspaceofabuilding.
Safety Instructions _ 3
Gas dryer power supply
ThisequipmentMUSTbegrounded.Intheeventofanelectricalshortcircuit,groundingreducestheriskofelectricshock
byprovidinganescapewirefortheelectricalcurrent.Thisunitisequippedwithacordhavingagroundingwirewitha
groundingplug.Theplugmustbepluggedintoanoutletthatisproperlyinstalledandgrounded.
Consultaqualifiedelectricianorservicerifgroundinginstructionsarenotcompletelyunderstood,orifdoubtexistsasto
whethertheequipmentisproperlygrounded.
Donotuseanextensioncord.Iftheproductpowercordistooshort,haveaqualifiedelectricianinstallathreeslot
receptacle.Thisunitshouldbepluggedintoaseparate60hertzcircuitwiththeelectricalratingasshownontheserial
plate.
Proper grounding and polarization for 120 volts wall outlets
ForthesafetyofourcustomersandtheservicetechnicianALLgas Ground
dryershaveathree-prongpowercordandMUSTbeconnectedtoa L1 Neutral
properlypolarizedandgroundedwalloutlet.Thisinformationwaswritten
forthosewhodonotunderstandgroundingandpolarizationofawall Neutralside
outlet.A120VACwalloutletmustalwaysbewiredasshownright.
Polarization -Thismeansthatthelargerslotmustbeneutralandthe 115