Discussion in 'Electrical Forum discussion & Blog' started by ToddT, Jul 17, 2013.

  1. ToddT

    ToddT New Member

    Jul 17, 2013
    I have two ceiling fans on the back porch that work perfectly fine when they are on alone. I also have a flood light back there. When the switch to the flood light is on, the fans stop working. Any ideas?
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    So many possibilities, it is hard to describe them. Obviously, something is wired wrong, but where, and what, without some testing, it is really impossible to tell.

    Are any of the things on 3-way switches? Are the fans switched individually, or in tandem? Sorry, without some more info, everything would be a wild guess.
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  4. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona
    The fans could be wired through the light bulb so that it is the neutral when its switch is off, but there would be no neutral when the light is turned on.(Such as by connecting the fan's white neutral to the "white" switched leg from the toggle switch.) Normally, if that were done, the bulb should "glow" when the fan is turned on, and the fan would run slower, but the current flow could be so low that you would not notice it.
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