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We have a new house and it came with central air. I have turned on the air and turned on the circuits and noticed that the outside fan on the outdoor unit was spinning round (good) now, I checked and the fan is not turning. Turned the unit on and off, still no turning and checkecd the circuit breakers...Any help please. Model is Aire_Flo Outdoor unit AFAIR12B30-A P I hear a low hum to the unit outside. I see trouble here.

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  • dionneny Jun 24, 2009

    Thanks, I checked the outside fuse box and it had the "fuse broken" light on. We went to Menards and replaced the fuse. You saved us 100s of dollars on a service call, and I want to thank you.

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First check to be sure the circuit breaker for the outside unit is not tripped. Turn the two pole breaker all the way off all the way off and then back on. If the outside unit still does not run you may have fuses in a disconnect box by the outside unit that are blown. You can check them with an OHM meter. No OHM reading means they are good.
The low hum you hear is probably the control voltage from the thermostat pulling in the contactor (switch that starts the outside unit). If no line voltage (230 VAC) comes to the unit it will not run.

Posted on Jun 24, 2009

  • FunnyPlumber
    FunnyPlumber Jun 24, 2009

    That is good I could help made your unit run. My concern now is what caused the fuse to blow? It would be a good idea to have a qualified air conditioning technician test your system to try and find what caused the fuse to blow as if you don't it will probably blow again. Fuses just don't go bad by themselves.

    Best wishes and may your toilet never run over.

    Terry aka Funny Plumber

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Yes indeed Id have to say the motor hasent been oiled....call a hvac guy and see how much theyd charge ya for maintenance call and decide then as if its priced right for you. after the inspection he'll tell you "XXXX" is wrong and you need this or that.

Posted on Jun 24, 2009

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