Table Lamp

Discussion in 'Electrical Forum discussion & Blog' started by Fudog, Dec 31, 2007.

  1. Fudog

    Fudog New Member

    Messages:
    28
    I have a table lamp that only works on the low setting. The bulb that is in it is a three way wattage type, any ideas what the problem could be? checked the bulb in another lamp and it works fine. I was wondering if maybe the switch is bad and at times if I touch it I will get a trickle charge of electric. It is unplugged now. THANKS!:confused:
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,313
    Location:
    New England
    Not all sockets are 3-way...it could just be an on-off switch.

    Most new lamps have a polarized plug...this puts the hot lead on the middle contact of the socket. Older ones, it's pot luck. If the insulation is worn or the wiring is frayed, or the socket is broken, you could have line voltage on the lamp body. If it isn't an expensive lamp, probably better to chuck it. If you want, you'll probably need to disassemble it and maybe rewire. Don't plug it in until you've checked it out - it could kill you.

    If you have a multimeter, you can check to see if you have continuity between either prong of the plug to the body of the lamp...if you do, fix it.
  3. jwelectric

    jwelectric Electrical Contractor/Instructor

    Messages:
    2,565
    Location:
    North Carolina
    It is time for a new lamp.
  4. 480sparky

    480sparky In the Trades

    Messages:
    149
    I'm in the 'it's not a 3-way socket' camp. Pull the bulb out and look inside the socket. If there's two connections, it's a 3-way. If there's one, it only takes a standard bulb.

    You can either install a standard bulb, or change the socket to a 3-way. It's easy to do... just make sure the part of the cord that has the ribs on it go to the silver screw.
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