HPCO Closed?
Line Voltage To
Compressor?
YES
YES
NO
YES
NO
Verify:
Compressor Overload is Closed
Start Components Function
Compressor Windings Are OK
Repair Wiring
Line Voltage @
Control Board Compressor And
Fan Terminals?
NO or Only One Component Has Line Voltage
Yes
Replace Control Board
Verify:
Clearances & Ambient Are OK
Filter & Condenser Are Clean
Condenser Fan Motor Functions
Water cooled Models:
Water Regulating Valve Functions
Reset Or Replace High Pressure Cut Out
Compressor
Running?
NO
YES
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