Part 4 Trouble Shooting

Trouble 5

When indoor Fan does not operate.(9~30kBtu/h Model)

 

 

 

 

 

 

Turn off main power.

 

 

 

 

 

Check the connection of CN-FAN.

Check the Fan Motor.

Check the Fuse(AC250V, T2A).

Check the related circuit of indoor Fan Motor.

The pin No. 38 of micom and the Q01M that drives the 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.

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-FAN.

About AC 160V over

About AC 50V over

SSR is not damaged

Check SSR

- 44 -

Only for training and service purposes

Page 44
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