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MMANIAC
05-26-2011, 11:42 AM
Ok so now it's getting warm out and guess what? NO AC!
Heat and DeFrost and fan work fine...
Self test shows no codes
Refrigerant checks ok
Compressor doesn't cycle
Fuse OK
Bypass relay the compressor runs
relay checks OK.
What am I missing?:confused:

Blackened300a
05-26-2011, 11:49 AM
Could be a bad high pressure switch. The test it to unplug it and then use a jumper wire on the pigtail and see if the compressor kicks on.

SC Cheesehead
05-26-2011, 01:56 PM
Could be a bad high pressure switch. The test it to unplug it and then use a jumper wire on the pigtail and see if the compressor kicks on.

If that checks out, it could be an issue with the EATC, I ran into that with a replacement unit I tried out. Fan and control to divert to all the ducts worked fine, but the AC wouldn't energize.