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    dchie1's Avatar
    dchie1 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Feb 18, 2010, 03:58 PM
    What would make the furnace motor shake?
    When blower motor turns on it really shakes and vibrates. It seems to run all right, no unusuall noises, except for the shaking and vibrating
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #2

    Feb 18, 2010, 04:26 PM

    Bad shaft bearings, bad motor bearings, extremely dirty blower wheel, or out of balance blower wheel.
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