In this article I will be going over some tips on troubleshooting single phase, residential compressors that won’t start. The tonnage of most residential compressors in air conditioners and heat pumps is going to be 1.5 – 5 tons, or 18,000 – 60,000 BTU’s.

Before you get to the call, if possible, get as much information as possible. This is going to train you to think past the simple solutions. For instance, my steps for compressor troubleshooting may change if I know that another company, or the homeowner, was trying to work on their compressor. Whenever a homeowner attempts to fix their air conditioner, I will keep my eye out for incorrect wiring, for example.