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  1. #1
    Join Date
    Jun 2014
    Posts
    1

    Default Buzzing light fixtures?

    We recently purchased a 1900' home. At inspection, gradual replacement of the wiring (as we remodel) was recommended because although the electrical system is in an operable condition at this time, a number of the wiring circuits
    have been installed for many years and the insulation of wiring that old may dry up. Recently, i've noticed a humming/buzzing noise from some of the light fixtures on the second floor when they are turned on. We've replace all the bulbs and the humming persists. Is this a sign that we need to get the wiring fixed sooner rather than later? What causes this sound?

    -S.
    Last edited by saranoh77; 06-12-2014 at 02:38 AM.

  2. #2
    Join Date
    Jan 2011
    Location
    Columbiana, Alabama
    Posts
    721

    Default Re: Buzzing light fixtures?

    You didn't mention if the wiring was grounded or you just had un-grounded receptacles.

    Flourescent lights have difficulty working properly on un-grounded circuits. And, as the old style magnetic ballast age they begin to heat up, leak a tar-like potting compound, get noisy and sometimes catch fire.

    If ordinary incandescent lamps and fixtures are noisy you have a serious problem and they should be repaired at once.

    Wiring with brittle wiring also poses and imminent danger.
    Good Luck from Columbiana, Alabama
    Maurice Turgeon, Hidden Content

  3. #3
    Join Date
    Aug 2007
    Location
    Maryland
    Posts
    1,610

    Default Re: Buzzing light fixtures?

    This probably isn't related to your problem, but I have a three lamp incandescent fixture that has a slight hum when the dimmer is used. The hum comes from the bulbs.
    I would make sure all the contacts in the fixtures are clean and making good contact with the bulbs. Other than with dimmers or fluorescent ballasts, I've never heard bulbs make any noise. (Sodium, mercury vapor, etc. are a different matter) It would make me a bit nervous to hear that.
    Last edited by ed21; 06-15-2014 at 11:32 AM.

  4. #4
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,598

    Default Re: Buzzing light fixtures?

    I wouldn't hesitate re-wiring the entire house now, as apposed to little by little.

  5. #5
    Join Date
    Jan 2008
    Posts
    2,118

    Default Re: Buzzing light fixtures?

    Quote Originally Posted by dj1 View Post
    I wouldn't hesitate re-wiring the entire house now, as apposed to little by little.
    Ditto this even if you have to take out a loan. Better new wiring and sound sleep than a pile of ashes and a pool of tears!

    Phil

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