I have a 1994 Toyota Camry LE. The AC blows hot air...push button light is green, has full freon, fuse is good. What else could be the problem? Melting in SoFla!

I have a 1994 camry ac blows cool when it is hot wired; but will not come on at all by itself, I replaced relay switch, but the green light does not come on at all I have a 1994 camry ac blows cool when it is hot wired; but will not come on at all by itself, I replaced relay switch, but the green light does not come on at all

There is a High Pressure Switch and a Low Pressure Switch. If either is bad the AC will not work correctly. Since you are hot wiring the compressor switch I would say the problem is the low pressure switch or the compressor has what is known as High Head pressure which will damage your system if it isn't repaired. Essentially it is most likely a bad compressor. This happens over time and 1994 wasn't the best year for AC compressors. They were still in the middle of deciding how best to accommodate the R134A requirement and since some companies where switching to synthetic Freon and synthetic fluids were still in their infancy as far as development there were a lot of lubrication problems. There is a High Pressure Switch and a Low Pressure Switch. If either is bad the AC will not work correctly. Since you are hot wiring the compressor switch I would say the problem is the low pressure switch or the compressor has what is known as High Head pressure which will damage your system if it isn't repaired. Essentially it is most likely a bad compressor. This happens over time and 1994 wasn't the best year for AC compressors. They were still in the middle of deciding how best to accommodate the R134A requirement and since some companies where switching to synthetic Freon and synthetic fluids were still in their infancy as far as development there were a lot of lubrication problems.