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Thread: 2 bathroom fans don't work

  1. #1
    DIY Junior Member leotuzi's Avatar
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    Oct 2009

    Default 2 bathroom fans don't work

    Maybe I'm in the wrong forum but I'll go ahead and post in hopes that someone with enough electrical knowledge can reply.

    I have a bathroom fan in the main bathroom and one in a half bath. Lights and GFI outlets work but the fans don't.

    I inspected all of the fuses and they're good.

    I wonder where the problem lies.

    Any help would be appreciated.

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
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    Sep 2004
    New England


    Do the fans humm when you turn them on? They could be corroded and the motor shaft has seized. Or, the switches are bad, or someone disconnected them. Checking out the switches is fairly easy if you have a test light or a multimeter.

    You should have power on one side of the switch, and when you turn it on, you should have power on the other side. You might need to go into the attic to check for power at the fan itself. Sometimes you can access the connections from below, sometimes you can't.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  3. #3
    One who lurks Basement_Lurker's Avatar
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    Jun 2007
    Victoria, BC


    Did you plug the fan motor power connector into the receptacle?
    Broken promises don't upset me. I just think, why did they believe me? -Jack Handy


  4. #4
    ACO Shower Drain Sales johnfrwhipple's Avatar
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    Jul 2009
    North Vancouver, BC
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    Default More info

    Did both fans stop at the same time?

    Are they tied into dehumistat switches?

    Has there been any other electrical changes recentley?

    If there is a timer or switch does this have power?

    Need way more information even to guess.

    jfrwhipple@gmail.com - www-no-curb.com - 604 506 6792

    Always get construction advice double checked by your local city hall. Flood Test Every Shower - Every Time.

  5. #5
    Moderator & Master Plumber hj's Avatar
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    Aug 2004
    Cave Creek, Arizona

    Default fans

    Plug the fan motors into an extension cord. If the fan runs you have a bad switch, wire, or connection. If not, then you need new motors.

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