WM2550HVCA - LG Washing Machine Service Manual (repair manual)

WASHING MACHINE

READ THIS MANUAL CAREFULLY TO DIAGNOSE 
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.

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MAR. 2007 PRINTED IN KOREA

P/No.: MFL30599188

2

CONTENTS

1. Specifications  .................................................................................................................. 3
2. Features and Technical Explanation  ...........................................................................  4-6
3. Parts Identification ..........................................................................................................  7
4. Installation and Test  ..................................................................................................  8-10
5. Operation .................................................................................................................  11-13

5-1. Control Panel Features ...................................................................................... 11-12

5-2. Cycle Guide  ...........................................................................................................  13

6. Wiring Diagram  ............................................................................................................  14
7. Test Mode .....................................................................................................................  15

7-1. Safety Caution  .......................................................................................................  15

7-2. Load Test Mode  .....................................................................................................  15

7-3. How to Read the Display in Load Test Mode  ........................................................  15

8. Troubleshooting  ....................................................................................................... 16-32

8-1. Safety Caution  ....................................................................................................... 16

8-2. Error Mode Summary  .......................................................................................  16-17 

8-3. Troubleshooting Summary  .....................................................................................  18  

8-4. Troubleshooting With Error  ...............................................................................  19-24

8-5. Troubleshooting Else  ........................................................................................  25-32

9. Component Testing Information  ............................................................................... 33-45

9-1. Filter Assembly (Line Filter)  .................................................................................... 33

9-2. Door Look Switch Assembly  .............................................................................  34-35

9-3. Stator Assembly ................................................................................................  36-38

9-4. Pump Motor Assembly ...........................................................................................  39

9-5. Inlet Valve Assembly ..............................................................................................  40

9-6. Heater Assembly ....................................................................................................  41

9-7. Thermistor Assembly  ........................................................................................  42-43

9-8. Steam Generator Assembly ..............................................................................  44-45

10. Disassembly Instructions  ........................................................................................  46-56
11. Exploded View  .........................................................................................................  57-59

11-1. Cabinet and Control Panel Assembly ...................................................................  57

11-2. Drum and Tub Assembly ......................................................................................  58

11-3. Dispenser Assembly .............................................................................................. 59

1. SPECIFICATIONS

ITEM

COLOR

W:BLUE WHITE, R:CANDY APPLE RED

POWER SUPPLY

AC 120 V, 60 Hz 

PRODUCT WEIGHT

192lb (87kg)

WASHING

280 W

DRAIN MOTOR

80 W

WASH HEATER

1000 W

WASH

46  rpm

SPIN

0-1200 rpm

CYCLES

   9

WASH/RINSE TEMPERATURES

     5 

SPIN SPEEDS

 5

OPTIONS

Prewash, Rinse+Spin, Extra Rinse, Water Plus, Delay Wash, COLDWASH™

WATER  CIRCULATION

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OPERATIONAL WATER PRESSURE

             

         - 

14.5                 116 psi (100-800 kPa)

CONTROL TYPE

Electronic

DIMENSIONS

27” (W) X 29 3/4” (D) X 38 11/16” (H), 50 13/16” (D, door open)

      DELAY WASH

up to 19 hours

DOOR SWITCH TYPE

PTC + Solenoid

WATER LEVEL

10 steps (by sensor)

LAUNDRY LOAD SENSING

Incorporated

ERROR DIAGNOSI 

Incorporated

AUTO POWER OF 

Incorporated

CHILD LOC                                                                                               Incorporated 

STEAM                                                                                                   Incrporated

RLM ENABLE

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ELECTRIC POWER

CONSUMTION

REVOLUTION SPEED

WM2550H*CA

W

WARNIN

ARNING:

G:

To reduce the risk of injury to persons, adhere to all industry recommended safety procedures 

including the use of long sleeved gloves and safety glasses. Failure to follow all of the safety 

warnings in this manual could result in property damage, injury to persons or death.

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