Carrier High Wall Duct Free Split System 38MVC Service Manual page 35

CHART 10 - - COMPRESSOR
Trace connections from Trace connections from
OD board. Connections OD board. Connections
ok? ok?
Yes Yes
Check contactor.* Check contactor.*
Contactor ok? Contactor ok?
Yes Yes
Check capacitor. Check capacitor.
Capacitor ok? Capacitor ok?
Yes Yes
Check compressor Check compressor
windings. Ok? windings. Ok?
No No
Compressor ok. Compressor ok.
* For size 9 and 12k units contactor is on outdoor board.
Check contactor output on outdoor board if not done already.
If bad, replace outdoor board.
No No
No fix connection No fix connection
No No
Replace contactor Replace contactor
No No
Replace capacitor Replace capacitor
No No
Replace compressor Replace compressor
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