OK guys - I got the unit out and the bottom removed. All I see is a green circuit board with a bunch of solder joints. None appear to be cracked. Do I remove the board and look further? I have done this in the past and all looked OK. I looked at the actual wire connectors to which the switches attach, but they look in order.

Oh for the days of mechanical controls like the old 75 I have. A lot good all this gadgetry does if it does not work. I do not find it hard to reach over and move a slide lever to adjust the heat or AC.

Has anyone you know of been able to bypass all the electronics and just have basic adjustments?

RMF