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Air Conditioner Compressor Fan Quit

My central air conditioning stopped working last evening. At first, I would hear a humming sound coming from the outside unit, and the fan seemed to be spinning slower than usual. I turned off the A/C at the thermostat for a few minutes then turned it back on. I could then hear a short buzz sound coming from the outside unit - it would buzz for a second or so, then wait about 10 seconds then buzz again. The fan did not move at all.

I then shut off the A/C and flipped the breaker, and checked to see if the fan blades would spin freely - there was almost no resistance, so the motor bearing haven't ceased.

Any thoughs on what might be the problem?

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Check the start capacitor. You may be able to see visual deformaty, otherwise, use a meter. The buzzing is most likely the contactors closing which uses a seperate 24v supply..

Posted on Jun 26, 2009

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