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Another HVAC problem?? (archive)
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Posted by Tom M. on November 17, 2000 at 23:22:01:

Winter has finally arrived here in NW PA and it time again to address the dreaded HVAC bugs on my '86 735.
Last winter I had a few vacuum leaks that got repaired, blower motor replace, thumbwheel replace, pushbutton replace,
etc. I now notice that my LED's on the PB panel sometimes don't come on again. Sometimes they will flicker. I had the car out tonite and it worked OK, but on 2 occasions the system just quit, LED's out and all. Some playing with the PB's and air volume thumbwheel got it running again.
What am I missing in the system??
The PB controls were new BMW parts and not rebuilt/reworked.
Thumbwheel assy was also BMW.
Any and all comments are appreciated!

Thanks guys,

Tom M. in PA

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