Kevin M Posted July 25, 2018 Share Posted July 25, 2018 So I just picked up my new to me 91 and ran fine all the way home. But I did something to the ac controls and now it won’t go down. So it’s stuck blowing at 90 all vents work. I don’t have a Manual so don’t know where to start looking at this issue. Thank all Link to comment Share on other sites More sharing options...
2seater Posted July 26, 2018 Share Posted July 26, 2018 (edited) I believe the HVAC controls are the same as the '90. Are you saying the requested interior temperature is stuck at 90* and will not change with the temperature down switch? I have seen a similar problem where the temperature would only go down but not up and that was caused by dirty contacts inside the control unit in the dash. It likely needs to be taken apart and the contacts under the buttons cleaned. Edit: I tried to link to the ROJ tutorials for the instructions but it gave error 404? Edited July 26, 2018 by 2seater (see edit history) Link to comment Share on other sites More sharing options...
Kevin M Posted July 26, 2018 Author Share Posted July 26, 2018 Yeh that’s exactly it. Do you think spraying some electrical contact cleaner in there work? Or I’d have to take all that out? Link to comment Share on other sites More sharing options...
Ronnie Posted July 26, 2018 Share Posted July 26, 2018 7 minutes ago, 2seater said: I tried to link to the ROJ tutorials for the instructions but it gave error 404? Here is the tutorial I think you were looking for How To Clean 1990 Climate Control Panel ROJ crashed a few weeks ago and I had to rebuild the menu. Any old bookmarks you have are probably bad now. Sorry. Link to comment Share on other sites More sharing options...
2seater Posted July 26, 2018 Share Posted July 26, 2018 I doubt just spraying is unlikely to fix the problem. The contact is under a membrane and the best, and long lasting repair, is to take it apart and manually clean the contacts. Thanks Ronnie, it is my old bookmark for ROJ. 1 Link to comment Share on other sites More sharing options...
Kevin M Posted July 26, 2018 Author Share Posted July 26, 2018 Thanks guys guess I’ll work on this after my trip to the DMV tomorrow 1 Link to comment Share on other sites More sharing options...
harry yarnell Posted July 26, 2018 Share Posted July 26, 2018 I've had issues years ago with the connector contacts oxidizing. Exercising the connector with some contact cleaner got the HVAC panel back in service. Easy fix. Link to comment Share on other sites More sharing options...
Kevin M Posted July 26, 2018 Author Share Posted July 26, 2018 Guess I’ll check that out too. Thanks Link to comment Share on other sites More sharing options...
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