Climate Control Erratic
Thread Starter
Heel & Toe
Joined: Aug 2001
Posts: 22
Likes: 0
From: Hawthorne CA
Climate Control Erratic
On my '89 vette, my climate controls sometimes starts blinking funny characters where the temp setting is displayed and sometimes all the light starting blinking in a funny way (A/C-Bi-level-Vent-Heater). It looks like a pretty random dispay of light flickering. This is intermittent happening about 50% of the time, either working or not once the key is turned.
I also have trouble with the heater/AC vent flap control where it intermittently sets itself on the heater side so only hot air blows.
These problems may be related. Has anyone else had this problem. Since it is not a hard failure - maybe there is something that could be fixed/looked at. ALso, how does the control set the heat/AC flap - does it actually measure temperature inside the vehicle and adjust the controls? Where is the temperature monitor?
thanks,
barrypaul
I also have trouble with the heater/AC vent flap control where it intermittently sets itself on the heater side so only hot air blows.
These problems may be related. Has anyone else had this problem. Since it is not a hard failure - maybe there is something that could be fixed/looked at. ALso, how does the control set the heat/AC flap - does it actually measure temperature inside the vehicle and adjust the controls? Where is the temperature monitor?
thanks,
barrypaul
Former Vendor
Joined: Jun 2001
Posts: 7,204
Likes: 6
From: St Marys PA
Re: Climate Control Erratic (barrypaul)
I had the same problem and I took out the climate control unit and cleaned all the contacts. Also checked under the hood for all ground connections and tightened them. This seemed to have solved the problems. Sorry it was a while and I can't remember all the details. Good luck
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: Climate Control Erratic (barrypaul)
Pull the climate control unit and remove the PC board. Clean the contacts I even reflowed solder on the card edge and still have some problems. However I noticed that the card edge connector on the front panel was warped. I'm thinking of bracket to clamp over it to straighten it rather than try and locate a replacement connector.
Fix the display/control center first and then work on the other issue if it still exists.
Fix the display/control center first and then work on the other issue if it still exists.
