wouldnt post this except have been doing roof this week by myself. If Freon or CFC pressure goes low, does AC circuit cut compressor out? Believe there to be low pressure switch.Will check schematic tomorrow and wiring thoroughly with DC meter, but am hoping for faster solution. AC running fine, oneday last week suddenly noticed it wasnt working.

There is a low pressure switch in the AC system. Usually on the receiver/dryer. You may have developed a leak.

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Jeff Lawrence
1987 300e
1989 300e
1987 BMW 325

[This message has been edited by jeffsr (edited 06-21-2000).]