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r4rogers 11-12-2012 01:00 PM

Wiring
 
I am trying to install can light in basement by replacing current light fixture. Once I removed old fixture I found that there are three romex wires (black, white and ground) coming into fixture. One is for the switch on wall but apparently one also feeds electricity to the bathroom and hallway lights. It is like it feeds it through this fixture. I can't figure out to wire this can light so I can continue to operate the lights in bathroom and hall. Any ideas of how to wire this. I am very new to electric work.

Thanks,

Rick

gregzoll 11-12-2012 01:12 PM

Sounds like you are dealing with a older home. You can leave it wired as is in the existing junction box, and pull new Romex for the new string of basement lights.

r4rogers 11-12-2012 01:20 PM

It was built in 1994 so not too old. When I took out old fixture I didn't notice how wires were connected. I just noticed that I have three Romex wires coming in. Do you have a diagram so that I can keep the connections the way it was? There was one white wire that was separate from the romex.

Am I able to connect fixture with all three romex?

Thanks,

Rick

gregzoll 11-12-2012 01:24 PM

How would I have a wiring diagram of how your home is wired. If you are unhooking the light, do one wire nut at a time to unhook the old fixture, replacing the wire nut back on the wire group you removed it from.

Just make sure your circuit breaker is off when working on this circuit.

Evstarr 11-12-2012 03:59 PM

Lol ^
Greg, i think he already took it all apart and wants help getting the other lights back on...

Rick, pics would help. What kind of ceiling? How many cans?

gregzoll 11-12-2012 04:07 PM

The OP just needs to connect the blacks together, the whites, and the grounds. What is so hard about it.

r4rogers 11-12-2012 04:38 PM

That is correct. I am a bit of a knucklehead. I took it apart before seeing how it was wired. I did try connecting all black (3 from ceiling and 1 from fixture) and all white (again all 3 from ceiling and 1from fixture) and all ground. Once I turned breakers on it would trip it when I flipped switch.

There was an extra loose wire as well connecting the blake to the white. I tried that as well. I am at a loss.

Again I'm not 100% on this because I was too quick disconnecting old fixture. I'm installing a 75 watt can light.

Any help appreciated.

Rick

jbfan 11-12-2012 04:44 PM

I bet it tripped with that short you created!

You need to identify each set of wires so you know which goes to the switch, which carrys power forward and which is the hot from the panel.
You would connect all grounds together.
Connect the white wire from the switch to the black from the panel and the black feeding the other lights.
Connect the two white wires left over to the white from the can.
Connect the black from the switch to the black of the can and turn the breaker back on.

Dierte 11-12-2012 06:55 PM

Quote:

Originally Posted by jbfan
I bet it tripped with that short you created!

You need to identify each set of wires so you know which goes to the switch, which carrys power forward and which is the hot from the panel.
You would connect all grounds together.
Connect the white wire from the switch to the black from the panel and the black feeding the other lights.
Connect the two white wires left over to the white from the can.
Connect the black from the switch to the black of the can and turn the breaker back on.

Identify your switch leg first. I bet if you open your wall switch you will have a black and a white ( power to switch power back to light. )

r4rogers 11-12-2012 07:04 PM

1 Attachment(s)
Is there an easy way to identify the different lines? Basement is finished so lines are behind the drywall.

jbfan 11-12-2012 07:17 PM

Do you have a meter or tester?

gregzoll 11-12-2012 07:17 PM

I take it that there was a Old work box up there. How many pulls of Romex go to the switch box? If only one, you have a Switch Leg up in the ceiling.

JBFan posted how to fix it, so what are you waiting for, get 'er done.

r4rogers 11-12-2012 07:30 PM

Thank you to all. I plan to get the tester from a friend to test which line is hot and which one is not. I will assume the one not hot is the switch line.

Thanks again. I will post my results.

Rick

gregzoll 11-12-2012 08:08 PM

Again, JBFan stated what needs to be done, you do not need a tester, other than finding the hot leg, which can be done with just a light bulb and socket with attached leads. You flip the breaker off, attach the light bulb socket to the white & black of one of the romex, flip the breaker back on. If it lights, you have the hot leg, then follow what JBFan stated to fix the problem.

Now if you do not want to go to that work, go to Lowe's, Ace Hardware, Menard's and grab one of these http://www.lowes.com/pd_218710-1781-...g|1&facetInfo= The leads come loose, so that you can touch the ends of the wire to find your voltage leg. Just have a helper at the breaker box to flip it on when you are ready, and back off, once you finish.

r4rogers 11-12-2012 08:53 PM

Just completed the job. Wiring directions were perfect. Thanks again for everyone's help. Be safe and happy holidays!

Rick


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