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Air conditioner not working; summer is coming; HELP!
Posted by Dan LeFebvre (more from Dan LeFebvre) on Sun, 6 May 2001 21:40:51
Dear fellow Saabophiles:
I know this is a not an uncommon question, but I'm having some trouble here. My a/c is not working. I have a 1990 900 16v. I've tried shorting the connectors to the low pressure switch--nothing happened. Through continued efforts, I've been able to realize that my compressor/clutch is okay by connecting the 30 and 87b pins in the relay socket (I think those are the numbers; in any event, the compressor engaged). I've been reading through the list archives and I now think that my situation may be unique. When I press in the snowflake switch the cooling fan does not come on. (Incidentally, during normal operation of my vehicle BOTH fans always come on simultaneously. I don't know if this is normal, but when the temp gets 1/2 to 3/4 up on the guage, both fans kick on and really draw quite a bit of Amperage--enough to strain the idle for a second; could this be related to my problem or is it normal?) Well, the root of my question is the observation that when I depress the snowflake switch the flake 'lights up' temporarily and then goes out as soon as I let go. NOthing in terms of a/c operation engages during this brief 'lighting up' period. Manipulation of the switch doesn't seem to help (i.e. I can't hold it in with my finger; there simply is no way to keep the flake lit). Before I start tearing things apart I wanted to see if this indicates another specific problem (is some faulty system 'feeding back' to the switch) or if it is just a bad switch? Thanks for your help.
Dan LeFebvre 1990 900 16v 126k Boston Important Disclaimer: ---------------------------------------------------------------------------------------------------------
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