Compressor Locked Rotor Diagnostic
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Single-phase compressors have three windings, COMMON, START, and RUN. All of this plays an essential role in getting the compressor to start and pump. So, aside from possible refrigerant issues like stuck closed TXVs or other problems, it is vital to understand how to properly check out a compressor that doesn’t seem to want to “get up and go!”
Manager of HVACR Education at Air Conditioning Contractors of America
Matt Akins is ACCA's Manager of HVACR Education. He can be reached at matt.akins@acca.org or 703-824-8867.
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