Question about Heating & Cooling

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No cool air coming into house.

"The unit outside seems to be buzzing on my air conditioner.It's blowing air but it's not cold" any suggestion before I have to call for service. The air handler is running just fine. No ice build up on unit in the basement.

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  • steve
    steve May 11, 2010

    The contactor on the outside unit has failed or the high voltage to the outside is tripped. The buzzing sound is the low voltage coil in the contactor receiving a signal from the thermostat.
    Also, look for ants in the contactor. They will stop voltage from making contact.


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  • 166 Answers

Yes, so as not to be repetitive (as others have had the same problem), here's a simple article that percisely explains the possible causes of your AC not cooling:
http://yourhandymanzone.com/Your_Handyman_Zone_How_To_Pages_Home_Improvement_Zone_Cooling_Ventilation_Systems_Central_Air_Conditioning_Does_Not_Cool.htm

Also, if need be, take advantage of the link towards the end for four free quotes from technicians if you find yourself need to get one. (You don't want to needlessly be charged for just someone's coming over only--it could cost a lot for no substantive action.)

Good luck!
Brad

Posted on May 25, 2009

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