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  1. #1
    Join Date
    Dec 2009
    Location
    University Park, MD
    Posts
    11

    Red face Disconnected old wires and circuit is now dead

    I have old armoured cable in my bathroom. I had a 3 wire - black, red, white and a 2 wire - black and white, somehow connected happily in an unused circuit box. They were hidden behind an old medicine chest and when I took the medicine chest out, I took out the box (and connections) and capped each wire individually. I lost all power in the bathroom. The 3 wire black is live, the others are not and I am pretty sure the red was not attached to anything, but I could be wrong. Which wires do I need to put back together to get the circuit working again? And yes I will note the connections before doing something this silly again.

  2. #2
    Join Date
    Jun 2007
    Location
    Fayette County, Ohio
    Posts
    6,080

    Default Re: Disconnected old wires and circuit is now dead

    Most likely black to black and white to white unless you have a wall switch.
    Jack
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

  3. #3
    Join Date
    Dec 2009
    Location
    University Park, MD
    Posts
    11

    Default Re: Disconnected old wires and circuit is now dead

    This is an old light fixture box so there is a wall switch. I do have black (live) to black, white to white, and the red by itself but the rest of the circuit works upstairs, but not the bathroom light or switch which are the same box.

  4. #4
    Join Date
    Aug 2007
    Location
    The Great White North
    Posts
    4,045

    Default Re: Disconnected old wires and circuit is now dead

    Perhaps it may be easier for you to determine what color wires are at each device ---- light ---- receptacle --- switch.
    "" an ounce of perception -- a pound of obscure "
    - Rush

  5. #5
    Join Date
    Dec 2009
    Location
    University Park, MD
    Posts
    11

    Default Re: Disconnected old wires and circuit is now dead

    The light switch is a new toggle one. The black wire is into the "common thermal" one the red is on top into an unmarked one and the white is on the bottom into an unmarked one. It is in box with a GFI outlet and they are wired together - all the whites and all the blacks but the red is all by itself. I have attic access and would be happy to close off the whole wiring to the box under the medicine cabinet as I won't need it if that is possible.

  6. #6
    Join Date
    Aug 2007
    Location
    The Great White North
    Posts
    4,045

    Default Re: Disconnected old wires and circuit is now dead

    Quote Originally Posted by hutch66 View Post
    The light switch is a new toggle one. The black wire is into the "common thermal" one the red is on top into an unmarked one and the white is on the bottom into an unmarked one. It is in box with a GFI outlet and they are wired together - all the whites and all the blacks but the red is all by itself. I have attic access and would be happy to close off the whole wiring to the box under the medicine cabinet as I won't need it if that is possible.
    Huh ?!?!?
    This almost sounds like a 3 way switch instead of a single pole.
    Is there another switch in the bathroom?

    There should only be 2 screw terminals and 2 wires attached to single pole switch.
    ( though I believe you guys in the US also have ground screw connections on the switches --- but that would be green colored ).

    I'm guessing the black and white from the 3 wire cable gets joined with the black and white of the 2 wire cable.
    The 2 wire cable is for the receptacle ( attached to the " load " of the GFCI )

    There might be a jumper from the black ( hot ) from the switch to the GFCI.

    The red from the 3 wire cable is the switched line to the light.
    "" an ounce of perception -- a pound of obscure "
    - Rush

  7. #7
    Join Date
    Feb 2009
    Posts
    693

    Default Re: Disconnected old wires and circuit is now dead

    Quote Originally Posted by hutch66 View Post
    The light switch is a new toggle one. The black wire is into the "common thermal" one the red is on top into an unmarked one and the white is on the bottom into an unmarked one. It is in box with a GFI outlet and they are wired together - all the whites and all the blacks but the red is all by itself. I have attic access and would be happy to close off the whole wiring to the box under the medicine cabinet as I won't need it if that is possible.
    Sorry but that sounds really EF'ed up. Post a pic and maybe we can help.

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