Scenario: Inside\Outside units are less than 5 years old
AC stop cooling, compressor and inside coils frozen.
System was left to defrost for aprox 6 hrs, visual inspection showed no ice.
Freon level was checked and showed minimal loss, freon was added.
Unit was turned back on and immediately showed ice forming on compressor.
Technician said compressor valves were bad - replaced compressor.
Once again unit was turned back on and immediately showed ice forming on compressor.
Further investigation showed the controller board to be bad. The fan relay had blown.
Technician says controller board also damaged the compressor.
Bypass the controller board and unit operates normal, no ice.
It is my understanding from talking to other techs and reading, that if the valves had gone bad, there would be no compression. No compression means no refrigerant, which means no ice.
So, my question is, should the compressor have been replaced?