LG WT4801CW Service Manual ▷ View online
21
Pump fixing screw
Leads
Drain Hose-p
4) Disassembly of Back Cover, Drain
Pump.
①
Remove back cover screws, then disassemble the
back cover.
②
Disconnect the leads and the drain hose-p from the
drain pump.
③
Remove the pump fixing screws and the connector
hose disassemble the drain pump.
5) Replacement of Damper asm
①
Separate top cover from washing machine.
②
As in the fig, lift snubber bar and take it out of out
case with out tub.
③
Damper assembly shall not be disassembled.
Replace damper as assembly.
22
Water Guide
Fixing Bolt
Hall Sensor
Stator Housing
Water Guide
Fixing Bolt
Hall Sensor
Stator Housing
Water Guide
Fixing Bolt
Hall Sensor
Stator Housing
6) Replacement of Rotor and Stator
①
Disassemble rotor nut with boxer (M18) or spaner.
(Tighten to greater than 200 kgf/cm or xxx foot-
pounds.)
②
Disassemble the rotor and pull it out, as shown in
the drawing.
③
Remove the screws and detach the water guide
from the tub.
④
Disconnect the hall sensor and stator housing
before disassembling the stator.
Water Guide
Fixing Bolt
Hall Sensor
Stator Housing
23
SNAP RING.
Hall Sensor
Stator Housing
Water Guide
⑤
Loosen but do not remove the 6 screws that secure
the stator.
⑥
Check the direction of SNAP RING.
(The handle of snap ring is toward rotor and stator.)
⑦
Hold the stator with one hand and remove the
screws.
⑧
Be sure to keep the wiring harness out of the way
when reassembling. Damage to the wires could
cause a short or noise and interference.
7) Replacement of Bearing Housing
Assembly
①
Loosen the 14 screws attaching the bearing housing
assembly and pull it up.
SNAP RING.
Hall Sensor
Stator Housing
Water Guide
SNAP RING.
Hall Sensor
Stator Housing
Water Guide
SNAP RING.
Hall Sensor
Stator Housing
Water Guide
None
Turns on all LED
T1 and Main Program Version
1 time
Button Check
T2 and Display Program Version
2 time
None
T3
3 time
Inlet valve for Bleach Detergent turns on. (Cold Water)
A and Water level frequency (1~10 Level)
4 time
※
On :67~33 (26.7kHz~23.3kHz)
※
The meaning of 67~33 number is 26.7kHz~23.3kHz really
Inlet valve for Softener Dispenser turns on. (Hot Water)
B and Water level frequency (1~10 Level)
5 time
Inlet valve for Jet spray turns on. (Cold Water)
C and Water level frequency (1~10 Level)
6 time
Heater check
T4
7 time
Wave force check
T5 and the coefficient of load sensing
8 time
Drain pump and Agitate check
T6 and Water level frequency
9 time
Load sensing test runs 3 times
T7 and the coefficient of load sensing
10 time
High speed spin
T8 and RPM
Off
11 time
. Turns off all LED
None
24
Number of times the
START/PAUSE
button is pressed
Check Pont
Display Status
1) SAFETY CAUTION
·
The main power board assembly has exposed live 120 VAC and live DC voltages. Use care when
disconnecting connectors during troubleshooting and testing. (Wear electrostatic discharge gloves when
handling the board.
·
Unplug the power when handling the board assembly. (Wear electrostatic discharge gloves when handling the
board. Store the board in an ESD [ElectroStatic Discharge] plastic bag.)
2) QC TEST MODE
·
The washer must be empty and the controls must be in the off state.
·
Press and hold WASH TEMP. and SPIN SPEED buttons ; then press the POWER button. The buzzer will
sound twice.
·
Press the Start/Pause button to advance to the subsequent test mode step.
4-3. TEST RUNNING WITHOUT WATER
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