72 Room 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-MOTOR.
Check the Fan Motor.
Check the Fuse(AC250V, T2A).
Turn on the main power
Check the related circuit of indoor Fan Motor.
• 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.
The voltage of Pin No 1(orange) and 3(black) of CN-MOTOR.
About AC 180V over About AC 50V over
SSR is not damaged Check SSR