Climate control

[George T.]

I just purchased a 1995 coupe that has an automatic climate control problem. The only buttons that work are the three air direction ones. The off, auto, temperature set and fan buttons do not work. I tried the suggestion in the owners manual to remove several fuses, but that did not solve the problem. Does anyone have a suggestion how to fix this. Thanks

[Tom H.]

Re: Climate control

I can tell you I have replaced a ton of them. I was going to advise you to do the same until I just checked availability. Seems it was discontinued August of 2010. None available either as I tried to locate one for you.

Here's a tip from the Corvette forum I've read but never tried.

Sometimes
the electronic climate control display can intermittently "black out"
and then later come back on again, as mine is now doing.

According
to Gordon Killebrew this can be due to corrosion on the circuit board card
edge fingers. He suggested removing the cover plate from the control unit
to access the printed circuit board card edge. Take a pencil erasure and
carefully rub each card edge trace until bright again, doing both sides if
necessary.

A representative of Contemporary Corvette suggested that
the problem could be due to weakness in two spring contactors just behind
the front plate. These should be carefully bent forward slightly to
restore good contact.

I have yet to try either of the tips on my
electronic climate control, but will do so soon.


Here's another from the same site.

After trying the two ideas mentioned in the other article
on this subject, my ECC still was blinking on and off. A friend of mine
and I got curious, so we took the printed board off of the faceplate, and
the solder was cracked on the inside of the faceplate. We simply touched a
hot soldering iron w/ just a little bit of solder on it to each point
where the plastic terminal meets the board. For each pin where the solder
is cracked, some solder will need to be added to fill the gap.

To
get the circuit board off of the faceplate itself, we cut all of the small
black circles of plastic off. (These are what hold the board onto the
faceplate.) All of the buttons on the faceplate will be free to fall out,
so be carefull to have the face pointing down when you remove the board.
Glue can then be used to hold the board onto the faceplate when the
repairs are completed.