Read LG 31412 Service Manual online
29
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) SERVICE MODE
•
The washer must be empty and the controls must be in the off state.
•
Press and hold the SOAK and CHIME 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
Number of times the
START/PAUSE
button is pressed
Check Pont
Display Status
None
Main program version and LED check
T1 and main program version
1 time
Display program version and 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) Inlet valve for
softener dispenser turns on. (Hot water)
The meaning of 67~33 number is
26.7kHz~23.3kHz really B and water level
frequency (1~10 Level)
5 time
Inlet valve for J-dispenser turns on.
(Cold Water)
C and water level frequency (1~10 Level)
6 time
Heater check (on heater model)
T4 and water temperature
7 time
Wave force check
T5 and alpha RPM
8 time
Drain pump check
T6 and water level frequency
9 time
Load sensing Check
T7 and the coefficient of load sensing
10 time
Agitate (tub) check
T8 and RPM
11 time
Spin Check
T9 and RPM
12 time
Off
. Unlocks the door
. Turns off all LED
None
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