Read LG WM3988HMA / WM3988HWA Service Manual online
WASHING MACHINE
SERVICE MANUAL
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.
MODEL : WM3988H*A
AUG. 2007 PRINTED IN KOREA
P/No.: MFL30599110
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CONTENTS
1. SPECIFICATIONS ............................................................................................................... 3
2. FEATURES & TECHNICAL EXPLANATION ....................................................................... 4
3. PARTS IDENTIFICATION ................................................................................................... 7
4. INSTALLATION AND TEST ................................................................................................ 8
5. OPERATION ...................................................................................................................... 11
5-1. CONTROL PANEL FEATURES ................................................................................. 11
5-2. CYCLE GUIDE ........................................................................................................... 14
5-3. SPECIAL FUNCTIONS .............................................................................................. 15
5-2. CYCLE GUIDE ........................................................................................................... 14
5-3. SPECIAL FUNCTIONS .............................................................................................. 15
6. WIRING DIAGRAM/PROGRAM CHART .......................................................................... 17
7. TEST MODE ..................................................................................................................... 19
7-1. SAFETY CAUTION .................................................................................................... 19
7-2. LOAD TEST MODE ................................................................................................... 19
7-3. HOW TO READ THE DISPLAY IN LOAD TEST MODE ............................................ 20
7-4. HOW TO CHECK THE WATER LEVEL FREQUENCY ............................................. 20
7-2. LOAD TEST MODE ................................................................................................... 19
7-3. HOW TO READ THE DISPLAY IN LOAD TEST MODE ............................................ 20
7-4. HOW TO CHECK THE WATER LEVEL FREQUENCY ............................................. 20
8. TROUBLESHOOTING ...................................................................................................... 21
8-1. SAFETY CAUTION .................................................................................................... 21
8-2. ERROR MODE SUMMARY ...................................................................................... 21
8-3. TROUBLESHOOTING SUMMARY ..........................................................................23
8-4. TROUBLESHOOTING WITH ERROR ....................................................................... 24
8-5. TROUBLESHOOTING ELSE ..................................................................................... 33
8-2. ERROR MODE SUMMARY ...................................................................................... 21
8-3. TROUBLESHOOTING SUMMARY ..........................................................................23
8-4. TROUBLESHOOTING WITH ERROR ....................................................................... 24
8-5. TROUBLESHOOTING ELSE ..................................................................................... 33
9. COMPONENT TESTING INFORMATION ........................................................................ 38
9-1. FILTER ASSEMBLY (LINE FILTER) .......................................................................... 38
9-2. DOOR LOOK SWITCH ASSEMBLY .......................................................................... 39
9-3. STATOR ASSEMBLY ................................................................................................. 41
9-4. PUMP MOTOR ASSEMBLY ...................................................................................... 44
9-5. INLET VALVE ASSEMBLY ......................................................................................... 45
9-6. HEATER ASSEMBLY ................................................................................................. 46
9-7. THERMISTOR ASSEMBLY ....................................................................................... 47
9-8. STEAM GENERATOR ASSEMBLY ........................................................................... 48
9-9. LAMP ......................................................................................................................... 49
9-2. DOOR LOOK SWITCH ASSEMBLY .......................................................................... 39
9-3. STATOR ASSEMBLY ................................................................................................. 41
9-4. PUMP MOTOR ASSEMBLY ...................................................................................... 44
9-5. INLET VALVE ASSEMBLY ......................................................................................... 45
9-6. HEATER ASSEMBLY ................................................................................................. 46
9-7. THERMISTOR ASSEMBLY ....................................................................................... 47
9-8. STEAM GENERATOR ASSEMBLY ........................................................................... 48
9-9. LAMP ......................................................................................................................... 49
10. DISASSEMBLY INSTRUCTIONS .................................................................................... 52
11.EXPLODED VIEW ............................................................................................................ 63
11-1. CABINET AND CONTROL PANEL ASSEMBLY ...................................................... 63
11-2. DRUM AND TUB ASSEMBLY .................................................................................. 64
11-3. DISPENSER ASSEMBLY ........................................................................................ 65
11-4. Dryer ......................................................................................................................... 66
11-2. DRUM AND TUB ASSEMBLY .................................................................................. 64
11-3. DISPENSER ASSEMBLY ........................................................................................ 65
11-4. Dryer ......................................................................................................................... 66
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1. SPECIFICATIONS
ITEM
WM3988H*A
COLOR
W:BLUE WHITE, N:NAVY BLUE
POWER SUPPLY
AC 120 V, 60 Hz
PRODUCT WEIGHT
192 lbs (87kg)
WASHING
280 W
DRAIN MOTOR
80 W
WASH HEATER
1000 W
WASH
46 rpm
SPIN
1320 rpm
CYCLES
9
WASH/RINSE TEMPERATURES
5
SPIN SPEEDS
5
OPTIONS
WATER CIRCULATION
Incorporated
OPERATIONAL WATER PRESSURE
14.5-116 psi (100-800 kPa)
CONTROL TYPE
Electronic
WASH CAPACITY [cu.ft]
3.47 (4.0 IEC)
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 DIAGNOSIS
Incorporated
AUTO POWER OFF
Incorporated
CHILD LOCK
Incorporated
RLM ENABLE
Incorporated
STEAM
Incorporated
ELECTRIC POWER
CONSUMTION
Prewash, Rinse+Spin, Extra Rinse, Stain Cycle, Water Plus, Drum Light
Tub Clean, SPINSENSE
Tub Clean, SPINSENSE
TM
‚ Delay Wash, Steam
REVOLUTION SPEED