Samsung WF511AB series User manual

WASHING MACHINE (DRUM) CONTENTS
SERVICE Manual
WASHING MACHINE
DRUM TYPE
Basic Model : WF448AAP/XAA
(PURPLE PROJECT)
Model Name : WF520AB*
(GRACE PROJECT)
WF511AB*
(GRACE JR PROJECT)
Model Code : WF520ABP/XAA
WF520ABW/XAA
WF511ABR/XAA
Refer to the service manual in the GSPN (see the rear cover) for the more information.
1. Safety Instructions
2.FeaturesandSpecications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram
6. Wiring Diagram
7. Schematic Diagram
WF520ABP

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 .......................................................................7
2-3. Comparingspecicationswithexistingmodels .............................................8
2-4. Optionsspecications .................................................................9
3. Disassembly and Reassembly............................................................11
3-1. Toolsfordisassemblyandreassembly ..................................................11
3-2. Standarddisassemblydrawings ........................................................12
4. Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4-1. Errormodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4-2. Correctiveactionsforeacherrorcode ...................................................27
5. PCB diagram ..........................................................................33
5-1. Main PCB .........................................................................33
5-2. ConnectorandRelayPortPartDetailedManual(MainPCB) .................................34
5-3. SubPCB(WF520ABP/XAA,WF520ABW/XAA) ...........................................35
5-4. ConnectorPortPartDetailedManual-SubPCB(WF520ABP/XAA,WF520ABW/XAA) .............36
5-5. SubPCB(WF511ABR/XAA)...........................................................37
5-6. ConnectorPortPartDetailedManual-SubPCB(WF511ABR/XAA) ............................38
6. Wiring diagram.........................................................................39
6-1. Wiringdiagram(WF520ABP/XAA,WF520ABW/XAA) ......................................39
6-2. Wiringdiagram(WF511ABR/XAA) ..................................................... 40
7. Schematic diagram .................................................................... 41
7-1. Maincontrol....................................................................... 41
7-2. Subcontrol(LCD)-WF520ABP/XAA,WF520ABW/XAA ................................... 42
7-3. Subcontrol(LED)-WF511ABR/XAA................................................... 43
7-4. Subcontrol(Graphic) ............................................................... 44

Safety Instructions _ 1
1. SAFETY INSTRUCTIONS
1-1. SAFETY INSTRUCTIONS FOR SERVICE ENGINEERS
► Besuretoobservethefollowinginstructionstooperatetheproductcorrectlyandsafelytopreventpossibleaccidents
andhazardswhileservicing.
► Two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.
BEFORE SERVICING
• (Whenservicingelectricalpartsorharnesses)Makesuretodisconnectthepowerplugbeforeservicing.
4 Failingtodosomayresultinariskofelectricshock.
• Donotallowconsumerstoconnectseveralappliancestoasinglepoweroutletatthe
same time.
4 Thereisariskofreduetooverheating.
• Whenremovingthepowercord,makesuretoholdthepowerplugwhenpullingtheplug
fromtheoutlet.
4 Failingtodosomaydamagetheplugandresultinreorelectricshock.
• Whenthewashingmachineisnotbeingused,makesuretodisconnectthepowerplug
fromthepoweroutlet.
4 Failingtodosomayresultinelectricshockorreduetolightning.
• Donotplaceorusegasoline,thinners,alcohol,orotherammableorexplosivesubstancesnearthewashing
machine.
4 Thereisariskofexplosionandrecausedfromelectricsparks.
WARNING

2 _ Safety Instructions
WHILE SERVICING
• Checkifthepowerplugandoutletaredamaged,attened,cutorotherwisedegraded.
4 Iffaulty,replaceitimmediately.
Failingtodosomayresultinelectricshockorre.
• Completelyremoveanydustorforeignmaterialfromthehousing,wiringandconnectionparts.
4 Thiswillpreventariskofreduetotrackingandelectricalhazard..
• Whenconnectingwires,makesuretoconnectthemusingtherelevantconnectorsandcheckthattheyare
completelyproperly.
4 Iftapeisusedinsteadoftheconnectors,itmaycausereduetotracking.
• MakesuretodischargethePBApowerterminalsbeforestartingtheservice.
4 Failingtodosomayresultinahighvoltageelectricshock.
• Whenreplacingtheheater,makesuretofastenthenutafterensuringthatitisinsertedintothebracket-heater.
4 Ifnotinsertedintothebracket-heater,ittouchesthedrumandcausesnoiseandelectricleakage.
AFTER SERVICING
• Checkthewiring.
4 Ensurethatnowiretouchesarotatingpartorasharpenedpartoftheelectricalharness.
• Checkforanywaterleakage.
4 Performatestrunforthewashingmachineusingthestandardcourseandcheckwhetherthereisanywater
leakagethroughtheoorsectionorthepipes.
• Donotallowconsumerstorepairorserviceanypartofthewashingmachine
themselves.
4 Thismayresultinpersonalinjuryandshortentheproductlifetime.
• Ifitseemsthatgroundingisneededduetowaterormoisture,makesuretorun
groundingwires.
(Checkthegroundingofthepoweroutlet,andadditionallygroundittoametallicwater
pipe.)
4 Failingtodosomayresultinelectricshockduetoelectricleakage.
 [Runningagroundingwire]
- Twistagroundingwire(copperwire)twoorthreetimesaroundthetap.
- Ifyouconnectthegroundingwiretoacopperplate,buryit75cmundertheearthina
placewithalotofmoisture.
 Donotconnectthegroundingwiretoagaspipe,plasticwaterpipeortelephone
wire.Thereisariskofelectricshockorexplosion.
75 cm
Copperplate
WARNING
WARNING
Grounding
terminal

Safety Instructions _ 3
BEFORE SERVICING
• Donotsprinklewaterontothewashingmachinedirectlywhencleaningit.
4 Thismayresultinelectricshockorre,andmayshortentheproductlifetime.
• Donotplaceanycontainerswithwateronthewashingmachine.
4 Ifthewaterisspilled,itmayresultinelectricshockorre.Thiswillalsoshortenthe
productlifetime.
• Donotinstallthewashingmachineinalocationexposedtosnoworrain.
4 Thismayresultinelectricshockorre,andshortentheproductlifetime.
• Donotpressacontrolbuttonusingasharptoolorobject.
4 Thismayresultinelectricshockordamagetotheproduct.
WHILE SERVICING
• Whenwiringaharness,makesuretosealitcompletelysonoliquidcanenter.
4 Makesurethattheydonotbreakwhenforceisexerted.
• Checkifthereisanyresiduethatshowsthatliquidenteredtheelectricpartsorharnesses.
4 Ifanyliquidhasenteredintoapart,replaceitorcompletelyremoveanyremainingmoisturefromit.
• Ifyouneedtoplacethewashingmachineonitsbackforservicingpurposes,placeasupport(s)ontheoorandlayit
downcarefullysoitssideisontheoor.
4 Donotlayitdownonitsfront.Thismayresultintheinsidetubdamagingparts.
CAUTION
CAUTION

4 _ Safety Instructions
AFTER SERVICING
• Checktheassembledstatusoftheparts.
4 Nowisagoodtimetoinspectyourwork.Reviewallconnectionsandwiring,includingmountinghardware.
• Checktheinsulationresistance.
4 Disconnectthepowercordfromthepoweroutletandmeasuretheinsulationresistancebetweenthepowerplug
andthegroundingwireofthewashingmachine.Thevaluemustbegreaterthan10MΩwhenmeasuredwitha
500V DC Megger
• Checkwhetherthewashingmachineisleveltheoorwithrespecttotheoriginalposition
ofthewashingmachinepriortoservice.
Bydoingthisnowwillreducefortheneedofcustomerdissatisfactionandredocall.
4 Vibrationscanshortenthelifetimeoftheproduct.
CAUTION

FeaturesandSpecications_5
2. FEATURES AND SPECIFICATIONS
2-1. FEATURES
Features Description
VRT™plus (Vibration
Reduction Technology)
• ThisSamsungwasherperformsveryquietlyminimizingnoiseandvibrationwith
dual3Dvibrationsensorsandsmartcontroltechnologywhichenabletomaintain
thelowestpossiblevibration.Thus,thedrumkeepsperfectbalance.
The Largest Capacity • Samsung’sextra-largecapacitylaundrymachinecanwashafullsetofyour
bedding,akingsizecomforter,orupto30bathtowelsinasingleload.Sinceyou
don’thavetodoasmanyloads,yousavetime,money,waterandenergy.
PowerFoam • Samsung’seffectivePowerFoamdeliversperfectcleanlinesswithadvancedfabric
care.
Specialengineinsideyourwashergeneratesfoambydissolvingdetergentwith
airandwaterbeforeeverywashingcyclestarts.Youwillgetgreatresultas
PowerFoamallowsdetergenttodistributeevenlyandpenetratefabricsfasterand
deeperthanconventionalwashingsystem.
PureCycle™
(Tub Cleaning cycle)
• Cleanyourdrumwithonebutton!ThisPureCycleisspeciallydesignedtoremove
buildupofdetergentresidue&dirtinthetub,diaphragmanddoorglasswithout
specialchemicaldetergent.Youcanenjoythefresh,cleandrumbyregularuseof
PureCycle.
Deep steam • TheDeepSteamfeatureboostscleaningperformanceandloosensgrimeanddirt,
thusprovidingsuperiorcleaningresults.
Diamond drum™ • Takegentlecareofyourfabrics.Withinsideholes36%smallerthanthoseof
conventionaldrums,thediamonddrumpreventsfabricsfromstickingoutand
consequentlybeingdamaged.
Stylish design • Thestylishdesignofthiswasherblendswellwithyourenvironment.
LCD Display & Center jog
dial
• TheJogdialenablesyoutoselectcyclesinbothdirectionswithease,andthe
LCDdisplayiseasytouseandunderstand.
DD Motor • Thepowertohandleanything!Ourdirect-driveinvertermotordeliverspower
righttothewashertubfromavariablespeed,reversiblemotor.Abeltlessdirect-
drivemotorgeneratesahigherspinspeedof1,250rpmformoreeffective,quiet
operation.Thewasheralsohasfewermovingparts,meaningfewerrepairs.
Sanitize • Whenselectingthiscycle,thewaterheatstoanextrahightemperaturetoremove
99.9%ofcertainbacteriatypicallyfoundonclothing,bedding,ortowels.This
certicationisconductedbyNSFInternational,anindependentthird-partytesting
andcerticationorganization.
Pleasecheckgarmentcarelabeltoavoidgarmentdamage.Onlysanitizingcycles
havebeendesignedtomeettherequirementsofthisprotocolforsanitization
efcacy.
NSFProtocolP172
SanitizationPerformanceofResidentialand
Commercial,Family-SizedClothesWashers

6_FeaturesandSpecications
Features Description
Pedestal with Storage
Drawers
(Model No : WE357A7P/E/W/R)
• Anoptional15”pedestalisavailabletoraisethewasher
foreasierloadingandunloading.
Italsooffersabuilt-instoragedrawerthatcanholda
100oz.bottleofdetergent
Stacking
(Model No : SK-5A/XAA)
• Samsungwashersanddryerscanbestackedto
maximizeusablespace.Anoptionalstackingkitis
availableforpurchasefromyourSamsungretailer.

FeaturesandSpecications_7
2-2. SPECIFICATIONS
Model WF520ABP / WF520ABW / WF511ABR
Wash type Frontloadingtype
Dimension
(Inches / mm)
A: High-Overall 38.6”/981mm
B: Width 27”/686mm
C: Depth with door open 90º 51.2”/1300mm
D: Depth 34.1”/865mm
Water pressure 20~116psi(137~800kpa)
Weight 110kg(242.5lb)
Capacity 5.0 Cu.Ft (iec)
Power
consumption
Washing 120 V 200 W
Washing and heating 120 V 1150 W
Spin 120 V 550 W
Drain 120 V 80 W
Spin revolution rpm 1300 RPM
A
B
D
C

8_FeaturesandSpecications
2-3. COMPARING SPECIFICATIONS WITH EXISTING MODELS
Project Grace Jr. GRACE PURPLE
Model Name WF511ABR WF520AB* WF448AA*
Image
Capacity (cu.ft. IEC) 5.0 cu.ft 5.0 cu.ft 4.5 cu.ft
Main Spec
Motor type DD Motor DD Motor DD Motor
MAX RPM 1300 1300 1300
VRT Yes (VRT+) Yes (VRT+) Yes
Heater (900W) Yes Yes Yes
DiamondDrum Yes Yes Yes
WashingCycle# 13 13 12
DelayWash 24hrs 24hrs 24hrs
TiltedDrum 5° 5° 10°
Soundpressure Ave56.3dBA Ave56.3dBA↓ Ave57.5dBA
Target
Performance
MEF 3.02 2.9↓ 2.7
WCF 3.3 3.4↓ 3.4
kWh/year 100kWh/year 120kWh/year↓ 162kWh/year
Design
ControlDisplay LED LCD LCD
FrameColor R:Tangored W:White
P:Stainlessplatium
W:White
E : Cooper
P:Stainlessplatium
R:Tangored
L:Onyxblue
Dimension
(W*D*H) 27 X 34.3 X 39" 27X34.3X39” 27X31.9X39”

FeaturesandSpecications_9
2-4. OPTIONS SPECIFICATIONS
Item Code QTY Remarks
BOLT-SPANER
(Wrench) DC60-40146A 1 Default
ASSY HOSE WATER(H) DC97-15648B 1 Default
ASSY HOSE WATER(C) DC97-15648A 1 Default
MANUAL-BOOK DC68-02838A 1 Default
CAP-FIXER DC67-00307A 6 Default
HOSE-HANGER DC62-10278A 1 Default
Note
• Youcanpurchaseadditionalwatersupplyanddrainhosesfromaservicecenter.
• Forbuilt-inmodels,thespanner(wrench),watersupplyanddrainhosesarenotsupplied.Boththewatersupplyand
drainhosesaresuppliedduringtheinstallation.

10_FeaturesandSpecications
MEMO

Removal and Reassembly _ 11
3. DISASSEMBLY AND REASSEMBLY
3-1. TOOLS FOR DISASSEMBLY AND REASSEMBLY
Tool Type Remarks
Socket
Wrenchwith
6”Extension
10mm
13mm
19mm
Heater (1)
Motor(1),Balance(5),2holesofeachleftand
rightoftheshockabsorber1Pulleyhole
OpenEnd
wrench
10mm
13mm
19mm
Replaceablefortheboxdriver.
Sincetheboltrunsidlewhentheboxdriveris
used,usetheboxdriver17mm.
Vicepliers Tooltoprotecttheidleandabrasionofthebolt
fortheboxdriver.
Others
(Driver, Nipper, Long
nose)
Generaltoolsfortheafterservice.

12 _ Removal and Reassembly
3-2. STANDARD DISASSEMBLY DRAWINGS
► Thisisastandarddisassemblydiagramandmaydifferfromtheactualproduct.
Usethismaterialasareferencewhendisassemblingandreassemblingtheproduct.
Part Figure Description
Disassembling and
Repairing the Rear
Motor
1. Removethe2screwsholdingtheBack-Coverat
thebackofthewashingmachineandseparatethe
Back-Coverpushingitdownwards(Assembleitby
liftingitupwards)
2. AfterseparatingtheBack-Cover,removetheM19
nutholdingtheMotor.
Toremoveit,turnitcounter-clockwise.Asthe
Motoralsorotatesifthenutisturnedslowly,torque
itquicklyandrmlyinasingleaction.
 Donotremovethenutbyinsertingascrewdriver
intotheMotor,asthismayresultinaproblemwith
themotor.
3. RemovetheM19nutandwasherandthen
separatetheRotor.
Sinceremovingtherotorrequiresalotofstrength
duetothemagneticforceoftheRotorandit
maycomeoffsuddenly,yourhandorarmmay
beinjuredbytheedgeoftheStatororFrame.
Thereforetakeprecautionwhenseparatingit.
 Youcanseparatetheconnectorbypressingthe
naveloftheHousingandpullingitoutside.
Motorwire
Hallsensor
4. SeparatetheMotorWireandHallSensorwhile
pressingthenaveloftheHousing.
TakeprecautionwhenyoudothisbecausetheHall
Sensorpartiseasilyshocked.
5. Separatethe6M10screws.→SeparatetheAssy
BracketMotor→SeparatetheStator.
 Whenremovingthelastofthe6screws,holdthe
Statorasitmayfallwhenthescrewsareremoved.
4 CheckPointsforTroubleshooting
1. CheckifthereisanyaliensubstancebetweentheRotorandtheStator.
2. Checkifthemotorpower(Blue,White,Red)wireisconnected.
3. CheckiftheHallSensorwireisconnected.
 TheorderofthemotorwiresisBlue,White,andRedfromtheright.Checkifthe
resistancebetweenBlue-White,White-Red,andRed-Blueisequalto15Ω.

Removal and Reassembly _ 13
Part Figure Description
Separating the
Cover_Top and
Panel-Control
(Check Main-PCB
and Sub-PCB)
1. Removethe2hexagonscrews,whichareatthe
back,xingtheCOVER-TOP.
2. DisassembletheCOVER-TOPbyslidingit
backwardsandremovethe4screwsonthe
PANEL-CONTROL.
WatervalveNoiselter Main PCB
Sensor pressure
3. Withthetopcoverremovedyouwillnowhave
accesstoservicetheWaterpressuresensor,EMI
NoiseFilter,HotandColdWaterValves,Steam
ASSY,HoseDrawASSY,andMainPCBASSY.
4. PresstheSeparatebuttontoseparatetheASSY
DRAWER.
5. DisassembletheHOUSING-DRAWERfromthe
PANEL-CONTROL(Pushbackandthenpush
Housing-drawerupsidetoseparate)

14 _ Removal and Reassembly
Part Figure Description
Separating the
Cover_Top and
Panel-Control
(Check Main-PCB
and Sub-PCB)
6. PullthePANEL-CONTROLtowardsandthenliftit
upwardstoseparate.
7. Carefullydisconnectthethreewiringconnectorsby
hand.
8. Removethe11screwsholdingthePCBand
releasethehooksonbothsidestoremovethe
PCBforrepair/replacement.

Removal and Reassembly _ 15
Part Figure Description
Separating the Main
PCB
1. Removethe2screwsholdingGUIDE-PCB(M)at
BRACKET-SPRING(R).
2. Lift up ASSY PCB(M)
3. MovetheASSYPCB(M)atparalleldirection.
4. Separate2hooks
5. AfterSVC,Certainlycheckthe2hooksassembled
correctly.
 OtherwiseCOVER-PCB(M)willbedisassembled
duringwashingmachinerunning.

16 _ Removal and Reassembly
Part Figure Description
Disassembling and
Reassembling the
Door Part
1. Removethe2screwsholdingtheHINGE-DOOR
andtheFRAME-FRONT.
2. DisassembletheASSYDOORliftingitupslightly.
3. Removethe18screwsxingtheHOLDER-GLASS
(includingthe2bluescrewsholdingtheLEVER-
DOOR,includingthe3arrowscrewsholdingthe
HINGE-DOOR.)
4. Puttingandpressinghardaat-headscrewdriver
intothefurrowbetweenCOVER-DOORand
SUPPORT-HINGE.
5. Makingasemicirclewithscrewdriver.
(Disassemblethehooks)
6. DisassembletheHOLDER-GLASSfromCOVER-
DOORTaketheDOOR-GLASS,SUPPORT-
HINGE, HINGE-DOOR.
4 CheckPointsforTroubleshooting
• CheckthestatusofthescrewsholdingtheHinge(checkiftheyareloose).
Checkifthefrontandrearofthedoorandthehingepartarenotdamaged.

Removal and Reassembly _ 17
Part Figure Description
Disassembling the
Front Cover/Frame
Front (Check the
Door Lock S/W)
1. PulltheDIAPHRAGMupside,andnish
disassemblingalongthecircle.
2. Removethe2screwstoseparatetheDOOR
LOCK S/W.
3. Removethe4screwsatthetopofFRAME-
FRONT.
4. Pushtheleverandpullittowardstoopenthe
COVER-FILTER.
5. SeparatetheremainingWATERREMOVALHOSE
(BLUE)fromthehook.
6. Removethe2screwdownunderFrameFront.
7. PresstheUPPER-PLATEslightlywiththe
screwdrivertoseparatetheFRAME-FRONT.

18 _ Removal and Reassembly
Part Figure Description
Disassembling and
Repairing the Water
Supply Valve
1. RemovetheTopAssy-Plate.
2. Disconnectthewatersupplyvalvewireconnector.
3. Removethe4screwsholdingthewatersupply
valve.
3. Removethehoseconnectedtothevalves.
(Usethepliertoremovethehose)
Disassembling and
Repairing the Water
Level Sensor
1. SeparatethewireconnectedtheSENSOR-
PRESSURE.
2. Adjusttheplasticclip(ofpressuresensor)between
twonoseofplier,thengripandpulltheplasticclip
withcaution(Usethelongnosepliertopushthe
hook).
3. RemovethehosefromtheSENSOR-PRESSURE.
Disassembling the
inside Detergent Box
• HoldtheClampoftheDetergentBoxand
disassembletheHose-Drawer-Tub.