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    suzcabuzy's Avatar
    suzcabuzy Posts: 4, Reputation: 1
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    #1

    Mar 18, 2012, 07:18 PM
    Whole House Attic Fan stopped working after a loud pop?
    We have a 30" CertainTeed Whole House Attic Fan. Works out, but went to turn it on tonight and after a few seconds of turning it on,there was a Violent Sounding THUG (a Popping noise- a Bang).. the Shutters Closed Automatically, and now there is a quiet hum... Any ideas?
    Thanks
    Fr_Chuck's Avatar
    Fr_Chuck Posts: 81,301, Reputation: 7692
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    #2

    Mar 18, 2012, 07:21 PM
    Belt broke, Most likely it has a belt ( looks like a fan belt on a car) that goes from the motor to the fan blade. The shutters closed since they open, or most do, from the air flow of the fan or because of fan rotation. The hum would be the motor still turning,
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #3

    Mar 19, 2012, 05:04 AM
    2X for Fr. Chuck, most likely a fan belt.
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
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    #4

    Mar 19, 2012, 06:20 AM
    One other possibility is the motor's start capacitor blew.
    suzcabuzy's Avatar
    suzcabuzy Posts: 4, Reputation: 1
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    #5

    Mar 21, 2012, 07:14 PM
    THANKS! That is VERY Helpful!
    suzcabuzy's Avatar
    suzcabuzy Posts: 4, Reputation: 1
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    #6

    Mar 21, 2012, 07:15 PM
    Is this something that can be fixed or do we need an entire new one? Thanks Again! Appreciate it very much
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #7

    Mar 22, 2012, 04:56 AM
    What has been found as the actual problem?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #8

    Mar 22, 2012, 06:35 AM
    Have you gone up to see if the belt broke? Replacement is simple.
    suzcabuzy's Avatar
    suzcabuzy Posts: 4, Reputation: 1
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    #9

    Mar 25, 2012, 12:25 PM
    Thanks! Crossing fingers that's all it is.. I am guessing I will have to go through the attic, as opposed to taking off the Shutter to check this out?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #10

    Mar 25, 2012, 09:05 PM
    Yes,you will not have enough space access and will probably need.to loosen the motor mount. Good luck.
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