WT4870CW - LG Washing Machine Service Manual (repair manual). Page 28

None

1 time
2 time
3 time 

4 time 

 

5 time 

6 time
7 time
8 time
9 time

10 time

11 time

Main program version
Display program version
None
Inlet valve for bleach detergent turns  

on. (Cold Water)

✽

 On :67~33 (26.7kHz~23.3kHz) 

Inlet valve for softener dispenser turns 

on. (Hot water)
Inlet valve for J-dispenser turns on. 

(Cold Water)
Heater check (on heater model)
Wave force check
Drain pump and agitate (pulsator) check
Agitate (tub) check
High speed spin
Off

. Unlocks the door

. Turns off all LED

T1 and main program version
T2 and display program version
T3
A and water level frequency (1~10 Level) 

✽

  The meaning of 67~33 number is 

26.7kHz~23.3kHz really

B and water level frequency (1~10 Level)
C and water level frequency (1~10 Level) 

T4 and the coefficient of flood sensing
T5 and the coefficient of load sensing
T6 and water level frequency
T7 and the coefficient of load sensing
T8 and RPM
None

Number of times the

START/PAUSE

button is pressed

Check Point

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.) 

•  Press and hold the SOIL LEVEL and SPECIAL USE buttons: then press the POWER button. The buzzer will 

sound twice.

•  Press the Start/Pause button to advane to the subsequent test mode step.