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    jeffpas's Avatar
    jeffpas Posts: 6, Reputation: 1
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    #1

    Jun 26, 2010, 10:42 PM
    A/C box fan outside won't turn on anymore, hums... can't figure out
    Hi All,

    One of the 1.2 million unemployed whose unemployment was also ended by the Senate yesterday. :(
    Well, apparently that wasn't enough for the week. This evening, the A/C decided to break, and it hovers 95+ here afternoons and very very humid.

    The central fan works just fine, but the fan box outside won't kick on anymore. It appears to be humming (reminds me of a vaccuum with something stuck in the rollers) but the fan blade turns freely and I can't see anything stuck.

    Is this a common problem/common occurrence that anyone has heard of before? Obviously it must be getting power or it wouldn't be humming. Open to any suggestions and will try anything, thanks much.
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #2

    Jun 26, 2010, 11:05 PM
    Check the breaker for power,, could be the low voltage control (contactor) that you hear humming,you would hear this without the 230 volt breaker being on
    jeffpas's Avatar
    jeffpas Posts: 6, Reputation: 1
    New Member
    		  
    #3

    Jun 27, 2010, 06:43 AM

    Hi thanks for the help.
    I reset all the breakers in the basement, checked all wire connections and turned the air on again today.
    After a bit the condenser unit reluctantly started. Now it is running, but the fan box appears to be running at a slower speed or not as loud as it normally does.
    Also, the air is blowing inside the house, but it does not appear to be cold.
    Is there a breaker somewhere else on the unit itself you are talking about?
    Is there a part that would cause this odd behaviour?
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #4

    Jun 27, 2010, 11:00 AM
    Capicitor,, possible
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