Quote:
Originally Posted by Ryan Z
Last winter ( my A/C didn't work ) when using heater, cold air would come through A/C vents, so I taped them shut. This year I got the A/C fixed. The other morning I tried the heat and I guess the A/C runs too. Is that the way it was designed, or is my control bad? Seems like one defeats the other. Thanks
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1984 MB 300 SD Turbo
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Do you know the condition of the vacuum pods that operate all the vacuum doors? The question is whether the vacuum doors are not functioning properly or the CCU is not providing the proper signal to run the doors.
If you have a Mityvac, it'll take a few hours to do some checking to see which pods are functional and which are not (if any).