Samsung WA7750M User manual

WASHING MACHINE (TOP-LOADING) CONTENTS

SERVICEManual

WASHING MACHINE

TOP-LOADING TYPE

Basic Name : WA7750M

Basic Code : WA52M7750AW/A4

Model Name : WA50R5400AV

(WA7000R)

Model Code : WA50R5400A*

WA50R5200A*

WA54R7600A*

WA54R7200A*

WA50T5300A*

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. Detail features ...................................................................7

2-4. Optionsspecications .............................................................9

3. Disassembly and Reassembly ........................................................10

3-1. Tools for disassembly and reassembly ...............................................10

3-2. Standard disassembly drawings ....................................................11

4. Troubleshooting ....................................................................21

4-1. Information modes ...............................................................21

4-2. Corrective actions for each Check code ..............................................25

5. PCB diagram.......................................................................30

5-1. Assy PCB main .................................................................30

5-2. Circuit Diagrams of Main parts for Assy PCB Main ......................................31

5-3. Assy Module (Touch) .............................................................33

5-4. Circuit Diagrams of Main parts for Assy PCB Main ......................................34

6. Wiring diagram .....................................................................35

6-1. Wiring diagram .................................................................35

6-2. Wiring diagram (5.4cu.ft Heater) ....................................................36

7. Reference .........................................................................37

7-1. Model Number Naming Rules ......................................................37

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.

4 Ifplugisfaultyreplaceit,ifoutletinconsumershomeisfaultyhaveconsumercallanelectriciantoreplace.

• 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connected

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vericationthatitisinsertedintothebracket-heater.

4 Ifnotinsertedintothebracket-heater,ittouchesthedrumandcouldcausenoiseandelectricleakage.

AFTER SERVICING

• Checkthewiring.

4 Ensurethatnopartofthewiringharnessmakescontactwithanyrotatingpartorsharpedges.

• Checkforanywaterleakage.

4 Performatestrunforthewashingmachinetoensurenoleakageunderthemachine,atanyhoseconnection,or

atthedrainhose.

• 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’slifecycle.

• 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.

Grounding

terminal

75cm

Copperplate

WARNING

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’slifecycle.

• 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’slifecycle.

• 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’slifecycle.

• 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applied.

• Checkifthereisanyresiduethatindicatesliquidenteredtheelectricpartsorharnesses.

4 Ifanyliquidhasenteredintoapart,replaceitorensurenoremainingmoistureinsidethepart.

• Ifyouneedtoplacethewashingmachineonitsbackorsideforservicingpurposes,placeasupport(s)ontheoor

andlayitdowncarefullysoitsback/sideisontheoor.

4 Donotlayitdownonitsfront.Thismayresultincosmeticdamagetoframefrontand/ordamagetothetub.

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.

• Ensurewashingmachineislevelbypressingdownoncornerstocheckforany

movement.Ifnotlevel,adjustlegsandcheckagainuntilnomovementispresent.

Vericationthatunitislevelwillreduce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

Large Capacity • A large 5.4/5.0cu.ft capacity means you can quickly wash more laundry in

a single load, saving you time and e󰀨ort, without the burden of frequent

washes.

Super Speed

• Cut your laundry time by up to 40% and clean better. Simply select Super

Speed to wash a full load in just 36 minutes. A powerful Active WaterJet

speeds up the rinsing process. And a larger diameter drum washes clothes

thoroughly by moving them around with more force, while a Swirl+ drum

pattern extracts water more e󰀨ectively.

EZ Access • The EZ Access design has a larger diameter drum, but it’s not as deep.

So you can enjoy e󰀨ortless loading and unloading, without sacricing any

capacity.

Active WaterJet • Pre-treat your laundry easily and e󰀩ciently. A built-in Water Jet lets you pre-

wash heavily soiled or stained clothes.

Deep Fill • Add more water to enhance the washing and rinsing performance. It will add

extra water at the right time to ensure that everything is soaked.

Self Clean

• Keep your washing machine hygienically clean, while being eco-friendly and

saving money. Self Clean removes dirt and odor-causing bacteria from the

drum. It uses soaking, pulsating and high speed spinning, so you don’t need

harsh or costly detergent. And it even noties you when it needs cleaning

VRT Plus

• Innovative VRT Plus™ technology reduces noise and vibration during

washes. A new frame design also provides great stability to minimize any

noisy movement. And vibration sensing technology detects and reduces

vibration from the motor.

Soft Close Lid

• The Soft Close Lid is designed to close safely, gently and silently. A damper

automatically reduces the speed of movement, so the lid slowly and quietly

closes. It gives you complete peace of mind, as there are no loud noises and

less risk of accidents

Smart Care

• Smart Care is an automatic error-monitoring system. It detects and

diagnoses problems at an early stage and provides easy troubleshooting

solutions using a smartphone App. So it saves you time and potentially

expensive repair bills.

Accessibility

• The control panel provides audio assistance by playing a di󰀨erent sound for

each option. It also has Braille and bumps next to the various control buttons

to indicate exactly what they are

6 _ Features and Specications

2-2. SPECIFICATIONS

TYPE TOP LOADING WASHER

WA54R7600A* WA54R7200A* WA50R5400A* WA50R5200A* WA50T5300A*

DIMENSION

(Inches / cm)

A. Height 44.6” / 1132mm

B. Width 27.5”/699mm

C. Height with Door open 58.3” / 1480mm

D. Depth 29.4” / 747mm

WATER PRESSURE 20~116psi (137~800kPa)

WEIGHT 61kg (134lb) 60kg (132lb)

CAPACITY 5.4cu.ft 5.0cu.ft

POWER

CONSUMPTION

WASHING 120V

700W

WASHING & HEATING 120V -

1440W -

SPIN REVOLUTION 750rpm

Features and Specications _ 7

2-3. DETAIL FEATURES

Grade WA54R7600A* WA54R7200A* WA50R5400A* WA50T5300A*

Image

Key

Features

Capacity (cu.ft/DOE) 5.4 5.4 5.0 5.0

Smart Care Yes Yes Yes Yes

Super Speed Yes -Yes -

Self Clean Yes Yes Yes Yes

Active WaterJet Yes Yes Yes Yes

Swirl+Drum Yes Yes Yes Yes

Washing Cycles 12 10 12 12

Internal Heater Yes ---

VRT PLUS Yes Yes Yes Yes

Pulsator material STS PP PP PP

Max rpm 750 750 750 750

Motor F-DDM F-DDM F-DDM F-DDM

Design

Color Black White Black White Black White Champagne

Main display 18:88 18:88 18:88 18:88

Jog Dial Chrome Chrome Chrome Chrome

Led color Ice-blue Ice-blue Ice-blue Ice-blue

Door lid TC Light Tinted Glass Light Tinted Glass Light Tinted Glass Light Tinted Glass

Top cover ABS ABS ABS ABS

Electrical Voltage/Frequency 120V/60Hz 120V/60Hz 120V/60Hz 120V/60Hz

Energy

Energy cost $20 $14 $14 $14

Electricity use 165kWh 120kWh 120kWh 120kWh

Energy consumption $13 $9 $9 $9

8 _ Features and Specications

Grade WA50R5200A* WA52M7750A*

Image

Key

Features

Capacity (cu.ft/DOE) 5.0 5.2

Smart Care Yes Yes

Super Speed - -

Self Clean Yes Yes

Active WaterJet Yes -

Swirl+Drum Yes -

Washing Cycles 10 13

Internal Heater - Yes

VRT PLUS Yes -

Pulsator material PP STS

Max rpm 750 800

Motor F-DDM DD

Design

Color White White Inox

Main display 18:88 18:88

Jog Dial Chrome Chrome

Led color Ice-blue Ice-blue

Door lid TC Transparent Glass Color Curved glass

Top cover ABS Steel+Painting

Electrical Voltage/Frequency 120V/60Hz 120V/60Hz

Energy

Energy cost $14 $20

Electricity use 120kWh 165kWh

Energy consumption $9 $12

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