[QUOTE]Originally posted by bobterry99
[B]A "1" means no codes. I don't think the battery voltage is an issue here, but you can get the controller to display its supply voltage if you want to check it as explained here.

When the A/C is not blowing cold, is the compressor off or on?
Compressor ON, with no air bubbles visible in sight glass .... Dial @ LO .... rheostat works fine...But, no condenation, ie; water dripping when parked... just plain NO COLD!
Interestingly enough now this problem with the control unit, only after winter storage.