Read LG WT4801CW Service Manual online
WASHING MACHINE
SERVICE MANUAL
Read the safety precautions in the manual before servicing the washer.
CAUTION
MODEL WT4801CW
SAFETY PRECAUTION!
IMPORTANT SAFETY NOTICE!
2
This service information is intended for individuals possessing adequate backgrounds of
electrical, electronic, and mechanical experience. Any attempt to repair this appliance may result
in personal injury or property damage. The manufacturer or seller can not be responsible for the
interpretation of this information, nor can it assume any liability in connection with its use.
WARNING:
To reduce the risk of fire, electric shock, or personal injury when using this
appliance, follow basic precautions, including the following:
• Wear gloves when working.
Failure to do this can result in serious injury.
• The appliance is heavy. Two or more people is
required when moving the appliance.
There is a risk of serious back injury or other injuries.
• Certain internal parts are intentionally not
grounded and may present a risk of electric
shock only during servicing. Service personnel -
Do not contact the following parts while the
appliance is energized. : Pump bracket, rotor and
heater
To reduce the risk of fire, electric shock, or personal injury when using this appliance, follow basic precautions,
including the following.
• Disconnect this appliance from the power supply
before servicing. Turning the controls to the off
position does not disconnect this appliance from
the power supply.
Failure to do this can result in shock.
• Reconnect all grounded devices after servicing.
Failure to do this can result in shock.
CONTENTS
1. Specifications ............................................................................................................................ 3
2. Installation Instructions
2-1. How to Adjust Level ............................................................................................................ 4
2-2. Connerting Water Supply Hose .......................................................................................... 6
2-3. Connert the Drain Hose ..................................................................................................... 7
3. Operating Instructions
3-1. Identification of Parts ......................................................................................................... 8
3-2. Before Starting to Wash ..................................................................................................... 9
3-3. Function of Each Button ................................................................................................... 14
3-4. Washing Programs ........................................................................................................... 16
3-5. Care and Maintenance ..................................................................................................... 17
4. Service Information
4-1. Wiring Diagram ................................................................................................................ 18
4-2. Disassembly Instrucion .................................................................................................... 19
4-3. Test Operation Without Water .......................................................................................... 24
4-4. Troubleshooting Methods for Common Washing Problems ............................................. 25
4-5. Troubleshooting Methods According to Error Message .................................................. 26
4-6. Ttroubleshooting Without Error Codes ............................................................................... 33
5. Component testing Information ................................................................................................ 35
6. Exploded View ......................................................................................................................... 45
7. Replacement Part List ............................................................................................................. 49
1. SPECIFICATIONS
3
Model
WT4801CW
Electrical
AC 120V , 60Hz
Capacity
3.73 cu.ft
Finish
Blue White
Door lid
Glass Lid
Inner Tub
Stainless
Inlet Water Pressure
14.5 ~ 116 PSI (100 ~ 800 kPa)
Rating of Fuse
125V, 12A for 100~127V/60Hz
Spin Speed
Max. spin speed 1,000
Weight
145.5 lbs (58kg)
Cycles
Cotton/Normal, Heavy Duty, Bulky/Bedding, Tub Clean,
Perm Press/Casual, Delicates, Speed Wash, Rinse+Spin
Time Delay
1-24 Hr
Lid Interlock Switch
Magnet Sensor
Control Lock
Yes
Softener Dispenser
Yes
Detergent Dispenser
Yes
Bleach Inlet
Yes
Auto Power Off
Yes
Smart Rinse™with Jet Spray
Yes
Motor
INVERTER Direct Drive
Heater
Yes
4
2. INSTALLATION INSTRUCTIONS
2-1. HOW TO ADJUST LEVEL
4
Raise
Lower
CAUTION
Raise
Lower
CAUTION
Raise
Lower
CAUTION
Raise
Lower
CAUTION
• The ventilating openings in the base area must not be obstructed by carpeting.
• Install the washing machine on a level and firm surface, and tilt should be less than 1˚
• Wooden floors may need reinforcing to prevent the normal vibration which occurs with an unbalanced load.
• Do not install the washer on an inclined floor.
Improper installation of the washer may cause noise and malfunctioning.
1
Installation area
•
Install the washer on a firm, flat
surface.
•
If the washer is installed on an
unsuitable floor, it could make
considerable noise and vibrate.
2
3
Checking level
•
Open the lid, check if the washer is
correctly leveled by looking down
from the top. If a gap is seen
between the tub and drum, the
washer is not level.
Do not use shims to level the washer. It
will create a hazardous condition. If the
washer is that far from being level, the
problem is with the floor rather than with
the washing machine.
Set Leveling feet
•
Loosen the locknuts on 2 front leveling
feet until you can turn the feet with the
included wrench. Turn clockwise to
raise the washer or counterclockwise
to lower it.
Checking slope
•
If installation surface is tilted, the
washer will vibrate. Do not install
on a sloping floor.