HPS light problem

Discussion in 'Electrical Forum discussion & Blog' started by rayh78, Sep 15, 2008.

  1. rayh78

    rayh78 Member

    Sep 15, 2008
    Colonial Heights, Virginia
    Tried to install a 50 watt HPS light. Would keep turning on and off after couple of minutes. Tried another fixture and same problem. Finally got it to work right by not having the ground wire connected.
    Trying to figure out why this happened.
    Also had checked no bare wires in box that could be touching.
    Meter showed 119 volts between black and ground or black and white. Nothing between ground and white.

  2. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona

    What about between the fixture's green wire and ground when the light is turned on?
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  4. jimbo

    jimbo Plumber

    Aug 31, 2004
    San Diego
    Is this fixture being controlled by a motion sensor, or photocell?
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