Some of the buttons on my automatic A/C controller are not functioning properly. Repeated pressing typically results in activating the switch/button but this is obviously annoying and unreliable. A new controller costs $750 so I am motivated to try and fix this instead of replace it. I took the controller apart but didn't notice anything that might be causing this other than speculating that a cicuit board may be going bad.
Anyone have this problem and able to fix it? Any recommendations on where to pick up a used one for a lot less than $750?
TIA
-Eric