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Volkswagen Passat: 1990-1994 (B3) 92 16V Passat AC--compressors works only on low speed fan


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Last Post: May 28, 2013 3:48 PM Last Post By: alloy
MarkysPassat

Posts: 1
Registered: 04/29/13
92 16V Passat AC--compressors works only on low speed fan
Posted: Apr 29, 2013 9:24 PM
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Old faithful, 176k, finally is giving me fits. The AC compressor only works on low speed fan.

If you turn the fan to higher speeds the compressor kicks off.

OK, R12 AC, finally have run out of R12 to keep this AC topped off. So I put gauges on it, which showed the level of freon was low.

So I evacuated it all out, and entered R134 into the system. Factory says 1200 grams I am at about 850 give or take 50.

AC compressor still kicks off when you turn the fan switch up higher....runs on low, but not if you turn the fan switch to 2,3 or 4.(high).

What am I missing here?

I can feel the freon getting cold in the line, the ac compressor kicks off and on, but only on low speed fan.
alloy

Posts: 1
Registered: 11/06/05
Re: 92 16V Passat AC--compressors works only on low speed fan
Posted: May 28, 2013 3:48 PM   in response to: MarkysPassat in response to: MarkysPassat
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beleive this is correct. if the fan does not run the compressor will not turn on. could be your resistor pack or the fan switch control. my compressor only runs on #2 and #4. if i press really hard on the fan switch on #3 the compressor than turn on but as soon as i take my hand away the compreesor light go off and the compressor turns off. hope this helps

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