29002 - LG Washing Machine Service Manual (repair manual). Page 28

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 (1~10Level)

5 time

Inlet valve for J-Dispenser turns on. (Cold Water)

C and Water level frequency (1~10Level)

6 time

Heater check (on heater model)

T4 and the coefficient of flood sensing

7 time

Wave force check

T5 and the coefficient of load sensing

8 time

Drain pump check

T6 and Water level frequency

9 time

Pulsator operates for 3 minutes.

T7 and the coefficient of load sensing

10 time

High speed spin

T8 and RPM

Off

11 time

. Unlocks the door

None

. Turns off all LED

Number of times the

START/PAUSE

button is pressed

Check Pont

Display Status

·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.) 

·The washer must be empty and the controls must be in the off state.
·Press and hold the Water Temp. and SOIL LEVEL buttons; then press the POWER button. The buzzer will

sound twice.

·Press the Start/Pause button to advance to the subsequent test mode step.