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Old 06-09-2012, 01:35 PM   #1
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Hanging a light


I'm trying to hang a couple of light fixtures in a recently remodeled bathroom. One junction box has the standard white and black wires coming out. Pretty straight forwards. The junction box right next to it has 6 wires. 3 white abnd 3 black. Stupidly I forgot to take a picture of how the old fixture was wired and now I dont know how the heck to connect the two wires from the light fixture to the wires in the junction box. I have tried multiple combinations and I can not get it to work The best I can get is for the light to come on when the breaker is turned back on but the switch wont work or if you hit the switch it will trip the breaker. Also, strangely enough the simple light with only 2 wires will not turn on. Are they somehow connected?

Can anyone help me? I feel completely lost here.
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Old 06-09-2012, 01:43 PM   #2
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Hanging a light


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Originally Posted by Buke09 View Post
I'm trying to hang a couple of light fixtures in a recently remodeled bathroom. One junction box has the standard white and black wires coming out. Pretty straight forwards. The junction box right next to it has 6 wires. 3 white abnd 3 black. Stupidly I forgot to take a picture of how the old fixture was wired and now I dont know how the heck to connect the two wires from the light fixture to the wires in the junction box. I have tried multiple combinations and I can not get it to work The best I can get is for the light to come on when the breaker is turned back on but the switch wont work or if you hit the switch it will trip the breaker. Also, strangely enough the simple light with only 2 wires will not turn on. Are they somehow connected?

Can anyone help me? I feel completely lost here.

Im completely lost in why people take splices apart. You now have to map out the wires so you can make the splice back, do you own a volt meter?


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Old 06-09-2012, 02:46 PM   #3
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Hanging a light


go buy an inexpensive voltmeter (DVM) or contact voltage tester. Turn on breaker with all wire disconnected and find out which black wire is live by running the tester along side the blacks. This cable will be the incoming feed. One other cable will be the switch leg. The third is either a continuation of the power feed to something else or another light fixture in parallel with this one.

If you get a volt meter with a resistance setting you can probe across black and white in Ohms mode and see which cable goes from infinity to zero ohms by switching the light switch back and forth. Do this with breaker off as the meter would want to see 125VAC in Ohms mode.
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Old 06-09-2012, 03:03 PM   #4
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Hanging a light


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Im completely lost in why people take splices apart.
The most important thing a electical DIYer can learn is to label all wires in a box BEFORE disconnecting them.

OK, maybe turning off the power is more important. But wire labeling is surely second.
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Old 06-10-2012, 06:29 AM   #5
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Hanging a light


You may have a switch loop where one of the white conductors is actually providing power to the switch. In this case the white conductor providing this should be taped black at its ends to re-identify it as a HOT conductor.
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