My 2001 Ford Escort which is full of freon won't cool because power is not getting to the compressor. Does the control relay have an affect on the compressor engaging?
My 2001 Ford Escort would periodically not cool. When it would cool, it would do so nicely. A few weeks back it stopped cooling all together. Took it to the neighborhood mechanic and was told that the control relay or module was interfering with power getting to the compressor. He found this by doing a by-pass directly to the compressor which resulted in the AC responding normally (very cool). Does this sound logical and is the part called a control relay module? Thanks for any knowledgable assistance.
He would probably be correct. It's called a Constant Control Relay Module. It controls more than just the a/c. But, a single circuit can fail without affecting other functions. Follow this link.... http://repairpal.com/the-constant-control-relay-module-may-fail-388
This is a very common problem. it's one of the relays in the CCM. I have had to replace mine twice over the years. You can search around and find a relay and pull your CCM apart and replace just the one relay, or replace the whole CCM. Sometimes the problem is just a bad solder joint on the relay. The unites are riveted shut an not meant to be serviced though.
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