So I can't find a lot of info on my problem, most of it doesn't apply. My a/c works find when the outside temp is in the 70s bit will work for only 10 to 20 minutes when it's above 80, the out side temp reads correctly, the little fan need my ear appears to be functioning, my freon press reads right and there are not any leaks. Once it shuts off it won't go come back on for quite a few hours, I have ordered another control head but haven't received it yet, any ideas or people that have had the same problem find the fix. When it happens the compressor pulley is not engaged, the fuses are fine and the blend doors work properly.