LG LCN240CP - Manual (Page 36)

36 Ceiling Cassette Air Conditioner
Troubleshooting Guide
When indoor Fan does not operate Trouble 4
Check the SSR high speed operation by remote control.
(The Indoor Fan Motor is connected)
Turn off Main power
Check the connection of CN-FAN or CN-MOTOR
Check the Fan Motor
Check the Fuse(AC250V/T2A)
Turn ON Main Power
Check the related circuit of indoor Fan Motor.
• The pin of Micom, and the part for driving SSR
• Check the pattern
• Check the SSR
- SSR Open: Indoor Fan Motor never operate
- SSR short: Indoor Fan Motor always operates in case of ON or OFF.
The voltage of PIN NO 1(blue) and 3(yellow) of CN-FAN or CN-MOTOR.
About AC 160V over About AC 50V over
SSR is not damaged SSR Check