LG WM0742HGA Service Manual ▷ View online
WASHING MACHINE
SERVICE MANUAL
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLES
CORRECTLY BEFORE OFFERING SERVICE.
MODEL : WM0742H*A
40
SEP. 2007 PRINTED IN KOREA
P/No.: MFL30599116
2
CONTENTS
1. SPECIFICATION ............................................................................................................................... 3
2. FEATURES & TECHNICAL EXPLANATION .................................................................................... 4
3. PARTS IDENTIFICATION ................................................................................................................. 7
4. INSTALLATION & TEST ................................................................................................................... 8
5. OPERATION ................................................................................................................................... 11
6. WIRING DIAGRAM/PROGRAM CHART ........................................................................................ 14
7. TROUBLE SHOOTING ................................................................................................................... 15
7-1. BEFORE PERFORMING SERVICE ........................................................................................ 15
7-2. QC TEST MODE ...................................................................................................................... 15
7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY ........................................................... 15
7-4. ERROR DISPLAY ..................................................................................................................... 16
8. ERROR DIAGNOSIS AND CHECK LIST ....................................................................................... 18
8-1. DIAGNOSIS AND SOLUTION FOR ABNORMAL OPERATION ............................................. 18
8-2. FAULT DIAGNOSIS AND TROUBLESHOOTING ................................................................... 21
9. DISASSEMBLY INSTRUCTIONS ................................................................................................... 29
10. EXPLODED VIEW .......................................................................................................................... 37
10-1. CABINET & CONTROL PANEL ASSEMBLY ......................................................................... 37
10-2. DRUM & TUB ASSEMBLY .................................................................................................... 38
10-3. DISPENSER ASSEMBLY ...................................................................................................... 39
3
1. SPECIFICATION
ITEM
COLOR
WM0742H*A
POWER SUPPLY
PRODUCT WEIGHT
Cycles
WASH/RINSE TEMPERATURES
SPIN SPEEDS
OPTIONS
WATER CIRCULATION
OPERATION WATER PRESSURE
CONTROL TYPE
WASH CAPACITY [cu.ft]
DIMENSIONS
DELAY WASH
DOOR SWITCH TYPE
WATER LEVEL
LAUNDRY LOAD SENSING
ERROR DIAGNOSIS
AUTO POWER OFF
CHILD LOCK
RLM ENABLE
STEAM
ELECTRICITY
CONSUMPTION
WASHING
DRAIN MOTOR
WASH HEATER
REVOLUTION
SPEED
WASH
SPIN
46 rpm
0-1200 rpm
9
5
5
PRE-WASH, STAIN CYCLE, STEAM, EXTRA RINSE,
RINSE+SPIN, DELAY WASH
Incorporated
14.5-116 psi (100-800 kPa)
Electronic
3.63 (4.2 IEC)
27" (W) X 29 3/4" (D) X 38
11/
16 (H), 50
13/
16" (D, door open)
up to 19 hours
PTC + Solenoid
10 steps (by sensor)
Incorporated
Incorporated
Incorporated
Incorporated
-
Incorporated
280 W
80 W
1000 W
AC 120 V, 60 Hz
192 lbs (87kg)
W:BLUE WHITE, G:PEARLY GRAY