Carrier · 38AP Air Handler
The phase sequence of the incoming power to the compressor is incorrect. This will immediately stop the compressor and lock it out after one alert. A power cycle is required to clear the lockout.
Click steps to track your progress.
Check the incoming power phase sequence.
Verify the compressor contactor wiring.
Ensure the module phase wiring (A-B-C) is correct.
Cycle power to the module to clear lockout.