88 electronic climate control problem

[Gerry]

I just finished putting a heater core in my 88 coupe and I noticed that I can increase the temp setting but the decrease button doesn't decrease the setting. In the process of finding this out I stupidly kept increasing the temp all the way up to the max of 90 which is where it is right now. My question is simple. Am I going to have to buy a new control unit or can something be done. Thanks for any help. Its cold here now but it won't stay that way.

Best regards,
Gerry

 

[Gerry]

Dear C5D,

Thanks for the info, I got the reset to 75 degrees but still the decrease button won't work. Any further suggestions will be much appreciated. Again thanks a lot for the help.

Best regards,
Gerry

 

[Gerry]

88 climate control problem

OK, I'll pull the unit out and clean all the contact points behind the buttons. I tried shooting contact cleaner in behind the button already but that didn't work (didn't really think it would). I will let you know how I make out. Thanks for all the help. Happy and Healthy New Year to you.

Best regards,
Gerry