Go Back  DoItYourself.com Community Forums > Electrical, AC & DC. Electronic Equipment and Computers > Lighting, Light Fixtures, Ceiling and Exhaust Fans
Reload this Page >

Need help with ceiling light wiring - 4 wires, 1 set always on, 1 set always off

Need help with ceiling light wiring - 4 wires, 1 set always on, 1 set always off

Reply

  #1  
Old 01-13-13, 08:39 AM
S
Member
Thread Starter
Join Date: Jan 2013
Location: USA
Posts: 7
Received 0 Votes on 0 Posts
Need help with ceiling light wiring - 4 wires, 1 set always on, 1 set always off

Hello everyone,

I could use some help with ceiling light wiring. The home we live in is a 1950's built home, appears to have modern wiring (No tube and knob, appears to all be older 2 wire setup, white and black wires, runs through to a breaker box).

The bedroom had a semi flush mounted light on the ceiling connected to a switch on the wall. The light stopped working.

The mount has been loose for a while, I oressed it up, and it lit once then went dead. I pulled the fixture down, found a white wire breaking off.

On further inspection, there were 4 wires, spliced together in various ways with old beat up white Masking/painters tape.

While I was working, I discovered a black wire spliced/extended with a white wire. When I came home from work, I discovered my wife had pulled down the other 2 wires which she said were taped up.

There are 4 wires, 2 black wires, 2 white wires.

1 set of black and white wires are ALWAYS ON according to my meter (and the fact I got shocked when touching them).

Other set of black and white wires are ALWAYS OFF no matter what position the switch is in.

When I tried to connect the blacks to blacks and whites to whites, all that happened is that when I turned on the light switch it blew the circuit.

(I have since seperated all the wires out and capped them all off.)

I know this is NOT the wall switch because I swapped the wall switch with a good known switch.

I picked up several books on wiring, but nothing describes anything similar to this.

Can anyone advise on how to fix the light ?

Thanks

Sean
 
Sponsored Links
  #2  
Old 01-13-13, 09:08 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 59,115
Received 1,113 Votes on 1,033 Posts
The black and white two wire that has power on it is your feed to the box.
The other wire is a two wire switch line.

Identify the switch pair........using any kind of colored tape....tape the white wire any color but white.
Now connect this wire to the black hot wire.
Connect the white wire from the feed cable to the white on the fixture.
Connect the black wire from the switch line to the fixture black wire.
 
  #3  
Old 01-13-13, 01:38 PM
S
Member
Thread Starter
Join Date: Jan 2013
Location: USA
Posts: 7
Received 0 Votes on 0 Posts
Thanks, all connected and working now

Thanks,

I rewired up the fixture and switch as directed and the light is now working.


Sean
 
  #4  
Old 01-13-13, 01:46 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 59,115
Received 1,113 Votes on 1,033 Posts
Good job.....well done
 
Reply
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: