My air has been running just fine but yesterday when I shut it off (it was finally below 90) the compressor fan (I think, it's the one on the outside unit) kept running. Is this a problem with the relay switch? If so, where can I locate it? I'm fairly handy so I don't mind doing my own fixes but I know very little about AC so if anyone can direct me as to where to look and how to fix it, I'd greatly appreciate it.
mongoose5271
Check the contract, may be stuck. Turn off your AC on thermostat. You should have a safe switch close by the condenser.
shut the stat no cool call..then shut the disconnect next to the condenser...remove the access panel on the outside section/condenser and the electrical panel..."alls off with no call or power" can you push the contactor in/springs back out with a pencil or pen...or is it stuck closed..when that closes when your stat calls the compressor and fan both start....
I can see this is way late. But just off the odd chance that someone else is finding this looking for a solution. Had a call yesterday with these indicators. After the call for cooling had stopped the condenser fan would continue to hum Not fully on. What had happened was one leg of the motor had a short to ground. Another leg of the motor was connected to a "shank" contractor. This means that leg always has 120v and would complete its circuit to ground and try to run the fan with 120v.
Moral of the story is with these symptoms you will most likely need a tech to come and replace the fan motor.
Moral of the story is with these symptoms you will most likely need a tech to come and replace the fan motor.
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