Drain Clog
Light Off?
NO Water In Drain Trough? YES
YES
YES
Replace Sensor
High Pressure
Light Off?
Clean and Dry
Drain Sensor
Light On
Light Off
Clear Drain
Test Run To Verify Operation
NO
YES
Verify:
Clearances & Ambient Are OK
Condenser Is Clean
Condenser Fan Motor Functions
Replace High Pressure Cut Out
NO
Press Control Board Reset
Button To Clear Error
YES
Disconnect
Sensor From
Control Board
Replace Control BoardLight On
Light Off
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