Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Are you talking about the fuse for the ac compressor? is the refrigerant fully charged? thermostat has nothing to do with this problem.
The only way to know the charge level of the system is with a professional shop ac machine. The system needs to be evacuated and recharged and tested under a vacuum. Dye will be added to the system and a UV light is used to check for leaks.