LG WT5270CW - Test Running Without Water; Safety Caution for Testing; Service Mode Operation

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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 plugged in and turned off.
• Press the POWER button: then press and hold the Wash Temp. and Soil Level buttons. The buzzer will sound
twice.
• Press the Start/Pause button to advane to the subsequent test mode step.
4-3. TEST RUNNING WITHOUT WATER
Number of times the
START/PAUSE
button is pressed
Check Point Display Status
None Main program version T1 and main program version
1 time Display program version T2 and display program version
2 time None T3
3 time Inlet valve for bleach detergent turnson. (Cold Water) A and water level frequency (1~10 Level)
4 time
⁕ On :67~33 (26.7kHz~23.3kHz)Inlet valve for softener
dispenser turnson. (Hot water)
⁕ The meaning of 67~33 number is26.7kHz~23.3kHz
reallyB 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 the coefcient of ood sensing
7 time Heater check (on heater model) T5 and alpha RPM
8 time Drain pump and agitate (pulsator) check T6 and water level frequency
9 time Load sensing Check T7 and the coefcient 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