LG WM3987HW Service Manual ▷ View online
WASHING MACHINE
SERVICE MANUAL
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.
MODEL : WM3987H*
NOV. 2009 PRINTED IN KOREA
P/No.: MFL30138960
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CONTENTS
1. SPECIFICATIONS .........................................................................................................................3
2. FEATURES & TECHNICAL EXPLANATION ................................................................................ 4
3. PARTS IDENTIFICATION ............................................................................................................ 7
4. INSTALLATION & TEST ............................................................................................................... 8
5. WIRING DIAGRAM .
.....................................................................................................................11
6. OPERATION ................................................................................................................................12
7. TROUBLESHOOTING.................................................................................................................14
7-1. BEFORE PERFORMING SERVICE ...................................................................................14
7-2. QC TEST MODE.................................................................................................................14
7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY ......................................................14
7-4. ERROR DISPLAY ...............................................................................................................15
8. ERROR DIAGNOSIS AND CHECK LIST ....................................................................................17
8-1. DIAGNOSIS AND SOLUTION FOR ABNORMAL OPERATION ........................................17
8-2. FAULT DIAGNOSIS AND TROUBLESHOOTING ..............................................................20
9. DISASSEMBLY INSTRUCTIONS ...............................................................................................31
10. EXPLODED VIEW .....................................................................................................................40
10-1. CABINET & CONTROL PANEL ASSEMBLY ....................................................................40
10-2. DRUM & TUB ASSEMBLY................................................................................................41
10-3. DISPENSER ASSEMBLY .................................................................................................42
10-4. DRYER............................................................................................................................. 43
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1. SPECIFICATIONS
ITEM
WM3987H*
COLOR
POWER SUPPLY
PRODUCT WEIGHT
CYCLES
WASH/RINSE TEMPERATURES
SPIN SPEEDS
OPTIONS
WATER CIRCULATION
OPERATIONAL 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
ELECTRIC
POWER
CONSUMTION
REVOLUTION
SPEED
WASHING
DRAIN MOTOR
WASH HEATER
WASH
SPIN
46 rpm
0 - 1200 rpm
9
5
5
Prewash, Extra Rinse, Stain Cycle, Water Plus, Drum Light Tub Clean,
SPINSENSE
TM
‚ 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
-
280 W
80 W
1000 W
BLUE WHITE
AC 120 V, 60 Hz
201 lbs (91kg)