Friedrich AS - W126BMS0 Service Manual page 31

When indoor Fan does not operate
Trouble 4
• The pin No.
• 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.
• Check the connectors.
• Check that whether the housings and harnesses would be separated
when there are attempts to disconnect those.
• Check to pull with hands directly to the harness.
• No harness should be divided from the housing.
About AC 160V over
SSR is not damaged
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.
of micom and the part for driving SSR.(Q01M)
38
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 50V over
Check SSR
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Part 4 Trouble Shooting