What I can not understand is why would the engine a/c work on Sunday and 6 days later blow warm air? It has worked great for the last year since it was worked on by a a/c mobile unit repairman with t...
Possible issues: Major system leak Failed compressor Failed compressor clutch Failed compressor clutch wiring Tossed fan belt (Selected vehicle only. My car did this, I also lost power steering, but the Alternator and water pump kept working, on my motor home there is but one belt)
Failed WATER VALVE (heater control valve).. That's one many overlook.
I had a compressor leak, replaced the compressor and all was great.
Ohm I also had a wire fault.. Never did find it, just replaced the wire.