LG AS-W096URH0/UBH0/UWH0/UMH0 Service Manual page 72

Troubleshooting Guide
Trouble 4
• The pin No.45 of micom and the part for driving SSR.
• Check the related pattern.
• Check the SSR.
- SSR Open: Indoor Fan Motor never operate.
- SSR short: Indoor Fan Motor always operates in case of ON or OFF.
72 Room Air Conditioner
When indoor Fan does not operate.
Turn off main power.
Check the connection of CN-MOTOR.
Check the Fan Motor.
Check the Fuse(AC250V, T2A).
Check the related circuit of indoor Fan Motor.
Turn on the main power
Check the SSR high speed operation by remote control.
(the Indoor Fan Motor is connected)
The voltage of Pin No 1(orange) and 3(black) of CN-MOTOR.
About AC 180V over
SSR is not damaged
About AC 50V over
Check SSR