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-   -   Ceiling Fan Motor Hum (https://www.askmehelpdesk.com/showthread.php?t=262881)

  • Sep 22, 2008, 07:27 AM
    vchang007
    Ceiling Fan Motor Hum
    I installed two Hunter Bay San Marino 36" ceiling fans with lights. They both work fine, except there is a noticeable motor hum when the fan is turned on low and gets noisier when switched to medium and high. Will low 110 VAC do this? Thank you. VChang
  • Sep 22, 2008, 09:47 PM
    ceilingfanrepair
    No, it needs vibration isolation. Try adding some paper and/or rubber washers between the blades and blade brackets, brackets and motor, and the motor and the ceiling.

    See: http://www.ceiling-fans-n-more.com/c...-and-FAQ.php#6
  • Sep 24, 2010, 08:41 AM
    FanManPro
    That's a poor answer. Vibration is vibration and hum is hum caused by the magnetism that develops in the laminated plates of the stator.
  • Sep 24, 2010, 08:50 AM
    FanManPro
    Comment on FanManPro's post
    To prove that vibration is not the problem, you can hold a fan blade still and turn on the fan and it will still hum without even moving. Point made.

    The most common cause of a humming noise from a fan is the use of an improper speed control

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