When indoor fan does not operate trouble 4 – LG LCN240CP User 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