Samsung DW80K5050US User manual

DISHWASHER CONTENTS
SERVICEManual
DISHWASHER
Basic model : DW80K5050US
Model Name : DW80M3021US
Model Code : DW80M3021US/AC
1. Safety Instructions
2. Features and Specications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram
6. Wiring Diagram
7. Reference

CONTENTS
1. Safety Instructions ...................................................................1
1-1. Safety Instructions for Service Engineers .............................................1
2. Features and Specications ...........................................................5
2-1. Features.......................................................................5
2-2. Specications ...................................................................6
2-3. ComparingSpecicationswithExistingModels.........................................7
2-4. OptionsSpecications............................................................8
3. Disassembly and Reassembly..........................................................9
3-1. ToolsforRemovalandReassembly..................................................9
3-2. Preparationforpartsreplacement ..................................................10
3-3. RemovingTheUpperRack .......................................................10
4. Troubleshooting ....................................................................34
4-1. Preparation....................................................................34
4-2. ServiceInspectionMode .........................................................38
4-3. Cyclechart ...................................................................45
5. PCB Diagram ......................................................................55
5-1. MAINPBA ....................................................................55
5-2. PCBDiagram .................................................................57
6. Wiring Diagram.....................................................................59
6-1. WIRINGDIAGRAM ............................................................59
7. Reference .........................................................................60
7-1. Checkpointsafterservicerequest .................................................60
7-2. ModelNumberNamingRules .....................................................61
7-3. TERMINOLOGY...............................................................62

Safety Instructions _ 1
1. SAFETY INSTRUCTIONS
1-1. SAFETY INSTRUCTIONS FOR SERVICE ENGINEERS
ሪMakesuretoobservethefollowinginstructionstooperatetheproductcorrectlyandsafelyandpreventpossible
accidentsandhazardswhileservicing.
ሪTwotypesofsafetysymbols,WarningandCaution,areusedinthesafetyinstructions.
Warning Hazardsorunsafepracticesthatmayresultinseverepersonalinjuryordeath.
Caution Hazardsorunsafepracticesthatmayresultinminorpersonalinjuryorpropertydamage.
Warning
Before Servicing
ࣃ(Whenservicingelectricalpartsorharnesses)Makesuretodisconnectthecircuitbreakerorpowercablebefore
servicing.
-Failuretodosomayresultinariskofelectricshock.
ࣃDonotallowconsumerstoconnectseveralappliancestoasinglepoweroutletatthe
same time.
-Thereisariskofreduetooverheating.
ࣃWhenremovingthepowercord,makesuretoholdthepowerplugwhenpullingtheplug
fromtheoutlet.
-Failuretodosomaydamagetheplugandresultinreorelectricshock.
ࣃWhenthedishwasherisnotbeingused,makesuretodisconnectthecircuitbreakeror
powercablefromthepoweroutlet.
-Failuretodosomayresultinelectricshockorreduetolightning.
ࣃDonotplaceorusegasoline,thinners,alcohol,orotherammableorexplosivesubstancesnearthedishwasher.
-Thereisariskofexplosionandrecausedfromelectricsparks.

2 _ Safety Instructions
While Servicing
ࣃCheckifthepowercableisdamaged,attened,cutorotherwisedegraded.
-Iffaulty,replaceitimmediately.Failuretodosomayresultinelectricshockorre.
ࣃCompletelyremoveanydustorforeignmaterialfromthehousing,wiringandconnectionparts.
-Thiswillpreventariskofreduetoarcingandshortcircuitsinadvance.
ࣃWhenconnectingwires,makesuretoconnectthemusingthecorrectconnectorsandcheckthattheyare
completelyconnected.
-Iftapeisusedinsteadoftheconnectors,itmaycausereduetoarcing.
ࣃMakesuretodisconnectthePBApowerterminalsbeforestartingtheservice.
-Failingtodosomayresultinahighvoltageelectricshock.
After Servicing
ࣃCheckforanywaterleakage.
-Performatestusingthestandard(normal)cycleandcheckwhetherthereisanywaterleakagethroughtheoor
sectionorthepipes.
ࣃDonotallowconsumerstorepairorserviceanypartofthedishwasherthemselves.
-Thismayresultinpersonalinjuryandshortentheproductlife.
ࣃIfitseemsthatgroundingisneededduetowaterormoisture,makesuretorungroundingwires.
-Failuretodosomayresultinelectricshockduetoelectricleakage.

Safety Instructions _ 3
Caution
Before Servicing
ࣃDonotsprinklewaterontothedishwasherdirectlywhencleaningit.
-Thismayresultinelectricshockorre,andmayshortentheproductlife.
ࣃDonotplaceanycontainerswithwateronthedishwasher.
-Ifthewaterisspilled,itmayresultinelectricshockorre.
Thiswillalsoshortentheproductlife.
ࣃDonotinstallthedishwasherinalocationexposedtosnoworrain.
-Thismayresultinelectricshockorre,andshortentheproductlife.
ࣃDonotpressacontrolbuttonusingasharptoolorobject.
-Thismayresultinelectricshockordamagetotheproduct.
During Servicing
ࣃWhenconnectingawiringharness,makesuretosealitcompletelysonoliquidcanenter.
-Makesurethattheconnectionsaresecuredbyslightlypullingonthem.
ࣃCheckifthereisanyevidencethatliquidhasenteredelectriccomponentsorconnections.
-Ifanyliquidhasenteredintoapart,replaceitorcompletelyremoveanyremainingmoisturefromit.
ࣃIfyouneedtoplacethedishwasheronitsbackforservicingpurposes,placeasupport(s)ontheoorandlayit
downcarefullysothebackisontheoor.
-Donotlayitdownonitsfrontorside.Thismayresultinscratchestothesurfaceordamagetotheparts.

4 _ Safety Instructions
After Servicing
ࣃChecktheassembledstatusoftheparts.
-Theymustbethesameasbeforeservicing.
ࣃCheckwhethertheproductislevelwiththeoorandsecuredtothecabinetandunder
thecounter.
-Vibrationscanshortenthelifeoftheproduct.

Features and Specications _ 5
2. FEATURES AND SPECIFICATIONS
2-1. FEATURES
Features Description Remarks
Extralargecapacity Theupperrackisslantedforlargerdishes.Thespacehasbeenmaximizedto
accommodateavarietyofdishsizes.
Increasedconvenience Thesmartautocycledeterminesthelevelofsoilonthedishesandinitiatesthe
optimalcycleforcleaning.Usethisfeaturetosavewater,energy,andtime.
Extremelyquietoperation Efcientnoisecontroltechnologygivesyouthequietestpossibleoperation.
YournewSamsungdishwasherisquieterthanever.
Self-cleaninglter Cleaningthelteryourselfisathingofthepast!Thisproductkeepsfoodwaste
internallywhileoperating,thendrainsitautomaticallywiththewater.

6 _ Features and Specications
2-2. SPECIFICATIONS
Model DW80M3021US
Main Features
Wash capacity 15placesettings
Control panel design Frontcontroltype+Tactoperation.
Dimension (W x D x H) 237⁄8x243⁄4x337⁄8in.(605x627x860mm)
Sales Point
Flexible Style InclinedRackSystem,HeightadjustableUpperBasket(manual)
Upgraded Kitchen Pleasantkitchenenvironment,Simple&Moderndesign
Smart Control SoilsensingProgramming,ABSdoorsystem
Accessoryparts-User/Installationmanual,InstallationKit.

Features and Specications _ 7
2-3. COMPARING SPECIFICATIONS WITH EXISTING MODELS
Model
NEWMODEL
DW80M3021US/AC
Power supply 120V,60HzAConly
Water pressure 20~120psi(140~830kPa)
Wash method Rotatingnozzlespraytype
Dry method AirVentdrysystem
Power Heater : 1100 W
WashMotor:60-100W
Water consumption 2.8~7.2gallon(10.7~27.2L),NormalCycle
Design
Specications
Panel Control Silver
Control Type Touch
Frame Front STS
Basket Handle X
Function
Specication
Soil Detection
Sensors O
Drying method AirVentdrysystem
Basket Height
Adjustment 2-stage
Leakage Sensor O
Programs 4
(Auto,Normal,Heavy,Express60')
Options 3
(Sanitize,HiTemp,ControlLock)
Part Name Part Code RPM Resistance(Ω)
Pump Circulation DD31-00008A 3050±50(H)/2750±50(L) 40.8±5%(H)/31.9±5%(L)
Pump Drain DD81-01527A 3600±50 22.5 ±10%
Fan Motor DD31-00006A 2550±150 141.7±5%

8 _ Features and Specications
2-4. OPTIONS SPECIFICATIONS
Photo Item Code QTY Remarks
Assy-InstallKit:
2Bracket-install
2screwsfortopmounting
2screwsforkickplate
2screwsforsidewall
DD98-01019A 1
Provided
withthe
dishwasher
UserManual DD81-02549A
InstallGuide DD81-02557A
90°Elbow(3/8”) - 1
Sold
separately
WaterSupplyLine
(FlexibleSTSsupplylineis
recommend) - 1
AirGap - 1
RubberConnector -1
HOSECLAMP -1
STRAINRELIEF -1

Disassembly and Reassembly _ 9
3. DISASSEMBLY AND REASSEMBLY
3-1. TOOLS FOR REMOVAL AND REASSEMBLY
Toolimage 
No. Tool Type Remarks
➊AdjustableWrench
➋Open-endWrench 1-7/16” Leg
➌Vicepliers
➍Others
(screwdriver,nipper,longnosepliers)
Commontoolsforservicing
Screwdriver-Philips,at,TorxT20,Smallat
➎NutDriver 10mm HeaterbracketNut
* Preparation for parts replacement
1.Takeouttheresidualwaterinsidetheproduct.
(Drainthewaterbyoperatingthedrainpump)
2.Closethewatersupplyvalve.
3.Turnoffthepower&disconnectpowercable.
Youmustturnoffthecircuitbreakerconnectedtotheproduct.
4.Pullouttheunitfromthesinkandlayitontheoor.
Becarefulofthedrainhosewhenpullingouttheunit.
WARNING
Alwaysturnofftheelectricpowersupply&watersupplybeforeservicinganyelectricalcomponent,
makingohmmeterchecks,orreplacinganyparts.
CAUTION
Beforemovingtheunit,layingitdownforservice,orremovinganypartsforservicebesuretodrainas
muchofthewaterfromtheunitaspossible.
Useaprotectivematortoweltopreventdamagetotheoororhavinganyoftheremainingwaterspillontheoor.
NOTE
Allvoltagechecksshouldbemadewithavoltmeterhavingafullscalerangeof250voltsorhigher.
Afterserviceiscompleted,besureallsafetygroundingcircuitsarecomplete,allelectricalconnectionsaresecure,
andallaccesspanelsareinplace.
※Beforeservicing,makesuretoremoveallitemsincludebasketsinsidedishwasher.

10 _ Disassembly and Reassembly
3-2. PREPARATION FOR PARTS REPLACEMENT
1.Takeouttheresidualwaterinsidetheproduct.(Drainthewaterbyoperatingthedrainpump)
2.Closethewatersupplyvalve.
3.Turnoffthepower.Youmustturnoffthecircuitbreakerconnectedtotheproduct.
4.Pullouttheunitfromthesinkandlayitontheoor.Becarefulofthedrainhosewhenpullingouttheunit.
Warning
Alwaysturnofftheelectricpowersupply&watersupplybeforeservicinganyelectricalcomponent,makingohmmeter
checks,orreplacinganyparts.
Caution
Beforemovingtheunit,layingitdownforservice,orremovinganypartsforservicebesuretodrainasmuchofthewater
fromtheunitaspossible.Useaprotectivematortoweltopreventdamagetotheoororhavinganyoftheremaining
waterspillontheoor.
Allvoltagechecksshouldbemadewithavoltmeterhavingafullscalerangeof250voltsorhigher.Afterserviceis
completed,besureallsafetygroundingcircuitsarecomplete,allelectricalconnectionsaresecure,andallaccess
panelsareinplace.
Before servicing, make sure to remove all items from inside of the dishwasher, including the wash racks.
3-3. REMOVING THE UPPER RACK
Pulltheupperracktowardsthefrontandthenremoveitbyliftingitupslightlyandpullingittowardsthefront.
Seetheillustrationsbelow.
Caution
Whiletheupperrackisremovable,itmustbeinstalledforthedishwashertooperateproperly.
Ifyouattempttooperatethedishwasherwithouttherack,noisewilloccurandthedishwasherwillperformpoorly.
Step 1.Step 2.Step 3.

Disassembly and Reassembly _ 11
Part Figure Description
Main PBA
Preparation:
• Makesuretodisconnectthepower.
1. YoucanseetheMain-PBAcaseunderthe
door.
2. Removethetwo(2)screwsofPBAcase
andpulloutthePBAcovercarefully.
3. RemoveallconnectorsonthePBA
4. Removethethree(2)screwsonthePBA
board.
5.PulloutthePBAboardcarefully.
 WhenremovingtheMainPBA,liftthePBA
boardupcarefullybecauseitishangingon
thePBAcasebytwohooks.

12 _ Disassembly and Reassembly
Part Figure Description
Door outer
Preparation:
• Makesuretodisconnectthepower.
• Removethelowerbasketinthedishwasher.
• CovertheAssysumpwithatoweltoprevent
losingscrews.
1. Openthedoorcompletely.
Removethe12screwsholdingthetubfront,door
outer,andcontrolpanelinplace.
 Beforeremovingtheparts,placeacushioned
matontheoortopreventthepartsfrombeing
scratched.
Afterremovingscrews,makesuretoholdthetub
frontusingyourhand.Itcanpreventclosingdoor
suddenlyandharmingyou.
Caution
Donotplacetheremovedscrewsonthedoor
inner.Theymayfallintothesumpassy.2.
Removethe12screws(shortone8pieces,long
one4pieces)whichholdingthedoorouterand
controlpanelinplace.
2. PullouttheDoorouter&theAssycontrolpanel
carefully.
3. RemovetheAssycontrolpanelfromDoorouter.
(Pulloutjustalittle)
Door Lock Switch
Preparation:
• Disassembletheframefront.
1. Whenremovingthedoorlatch,liftitupbecause
thelatchissecuredbyonehooks.
 Useaatscrewdrivertoremoveit.
2. Releasethemicroswitch.

Disassembly and Reassembly _ 13
Part Figure Description
Condensing dry
system
1. Openthedoorcompletely.Removethetwelve(12)
screwsholdingthetubfront,doorouter,andpanel
controlinplace.
Caution
Donotplacetheremovedscrewsonthetubfront.
Theymayfallintothesumpassy.
2. PullouttheDoorouter&theAssycontrolpanel
carefully.
3. Removethefanmotor&thermalactuator
connectors.
4. Removethesingle(1)screwholdingthebracket
coverfaninplace.

14 _ Disassembly and Reassembly
Part Figure Description
Condensing dry
system
4. Removethecoverfanbyrotatingit
counterclockwise.
Useajig.Ifyouhavenojig,useatoolsuch
asapairoflongnosepliers.Removeit
carefullysothatthepartisnotdamaged
5. Removethetwo(2)screwsholdingthe
coverfaninplace.
6. Holdandremoveboththecaseventassy
whicharelocatedatthefrontofthetubfront.

Disassembly and Reassembly _ 15
Part Figure Description
Control Panel
Preparation:
• Disassemblethedoorouter.
1. RemovetheDoorlockswitchfrom
Assypanelcontrol.
2. Removethewireconnectorsfrom
Panelcontrol.

16 _ Disassembly and Reassembly
Part Figure Description
Cap Dry Outlet
Preparation:
• Disassemblethedoorouter.
1. Pushittotheinsidecarefully.

Disassembly and Reassembly _ 17
Part Figure Description
Dispenser
Preparation:
• DisassembletheDoorouter.
-Referthe“Door-outer”disassembly
sectiontoseparatetheDoorouter.
1. Disconnectthetwo(2)wirefromthe
Dispenser.
2. Thedispenserisxedtothetubfrontwith
manyhooks.Useseveralatscrewdrivers
to remove it.
3. Pushittotheinsidecarefully.
Caution
 Becarefulasthetubfrontissharp.

18 _ Disassembly and Reassembly
Part Figure Description
Bracket front
lower
Preparation:
• Makesuretodisconnectthepower,water
supply,anddrainhoseconnections.
• Removetheupper&lowerbasketsinthe
dishwasher.
• Pulloutthedishwasher&carefullylaythe
dishwasherdownonitsback.
• Removethewatersupplyline(&elbow).
Caution
Makesuretoturnthewatersupplyoffbefore
removingthewatersupplyline.
1. RemovethecoverPCBandpulloutthecase
PCBwithoutdisconnectingwireconnectors.
-WhenremovethePCB,liftupthetwo
(2claspsunderthebasebyusingaattip
screwdriverinalevereffect.
2. PulloutthecasePCBandsecureittothebase
usingducttape.Shownintheimagetotheleft.
3. Removethefour(4)screwsonbothsides
ofthebracketfrontlower.
4. Theguidewireisattachedtothebracketfront
lowerwiththreehooks.Useapairofneedle
nosepliersoratscrewdriver.
5. UsingaPhilipsscrewdriver,liftuptheeach
clasponbothsidesofthebracketfrontlower.