Ohm out the compressor. It may be burnt out. You should get a small resistance between each pin on the compressor. They do vary usually between 1 and 7 ohms. Also between each pin to ground. The copper pipe on the compressor is a good ground. You should also try a new hard start. However it is likely a siezed compressor.
Circuit breakers do fail as well. Not often but they do fail.
Jeff and Annette Smith. Sparky, lemon Beagle.
2022 Chevy Equinox RS.
2011 GMC Diesel 2500 HD. Sold