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    jburton8971's Avatar
    jburton8971 Posts: 1, Reputation: 1
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    #1

    Jul 24, 2011, 03:26 AM
    Having a loud vibration sound coming from the inside central air conditioning system
    I have a loud vibration sound coming from my central air conditioning system what could it be?
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
    Home Improvement & Construction Expert
     
    #2

    Jul 24, 2011, 04:58 AM

    Circulation fan or motor mounting loose, fan striking something, if direct drive fan loose on shaft. If belt driven, loose pulley on fan or motor, damaged belt. Debris caught in fan to make it out of balance.

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