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    SanScott57's Avatar
    SanScott57 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Aug 31, 2011, 01:52 AM
    A/c Unit fan inside won't run,But Outside Unit works fine. What's the problem?
    The Outside Unit is working fine. The inside Unit fan won't come on and makes a humming noise.
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
    Uber Member
    		  
    #2

    Aug 31, 2011, 05:30 AM
    Could be a capacitor.
    With unit powered down, I would see if motor spins freely.
    Froze bearing?
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #3

    Aug 31, 2011, 03:31 PM
    Like start said, could be a bad cap, or a bad motor. Capacitors are cheap, so you could start by getting an exact matching capacitor and replace it. If problem still occurs, a new motor it is. Run caps for these motors usually run between 5 and 15 bucks, so you aren't really out much in doing this test.
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