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  1. #1
    Join Date
    Oct 2008
    Posts
    1

    Default 1940 house wiring

    I bought a 1940 built house with two prong outlets. I'm replacing a celing fan the previous owner installed. There are only two wires coming from the celing outlet and both are black. The non-contact voltage tester I bought for $10 lights up on both wires. I noticed this voltage tester lights up on both sides of most receptacles in the house.

    Do I have a major problem or is this normal? How should I select a wire for the ceiling fan for hot?

    Thanks a lot.

  2. #2
    Join Date
    Jun 2007
    Location
    Fayette County, Ohio
    Posts
    5,558

    Default Re: 1940 house wiring

    It is quite common to get false readings with non contact testers. They light when ever they see a change in the magnetic field. Use a voltmeter and test to ground or you can use a receptacle tester by attaching the wires to the prongs.
    Jack
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

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