[H2OMIKE65]

Electronic heater control is dead, no function. checked fuses, all ok. I have power at the connector that plugs in back of the control. I am guessing that the board is blown unless anyone has suggestions. Thanks, Mikeatriot:

 

[MarkyMark]

94 Electronic Heat/AC control

There's a guy in Connecticut who rebuilds instrument clusters and I think...certain electric enviromental controls. Can't think of his name off hand. I was referred to him by a co-worker, but he doesn't service my year. Every once and a while when I hit a hard bump, mine quits working. A couple of taps on the control face and it works again. Still looking for someone to fix.

 

[95vette]

Not sure about 89s, but this is definitely good for 94s. And it is actually an easy DIY.
Here is the link:
http://forums.corvetteforum.com/c4-general-discussion/1519199-climate-control-button-repair.html

 

[lostvette]

Try Ecklers ! They Repair Boards !

 

[vetteoz]

I am guessing that the board is blown unless anyone has suggestions.

http://forums.corvetteforum.com/1568603057-post3.html