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Old 09-11-2012, 04:26 PM   #1
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Light/Switch Problem


Hello,

I have a ceiling light I just installed. When I turned the breaker back on, the light was on (good, right?), but for some reason the switch now does not turn the light off. I even changed out the switch and still the same problem; light is on, but switch does not control it.

There is juice going to the switch as I zapped myself by mistake.

Any help to trouble shoot this would be greatly appreciated.

Thanks.

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Old 09-11-2012, 04:31 PM   #2
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Light/Switch Problem


My guess is you did not mark the wires so you could reconnect them up the same way when you removed them.
You have a wire by passing the switch loop.

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Old 09-11-2012, 04:40 PM   #3
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Light/Switch Problem


You are referring to the wires running to the switch or the light?
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Old 09-11-2012, 04:48 PM   #4
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Light/Switch Problem


The light.
Just a guess there was more then just one black, one white and a bare ground in that light fixture box.
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Old 09-11-2012, 04:50 PM   #5
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Old 09-11-2012, 04:50 PM   #6
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Light/Switch Problem


I think you mixed up two wires in the switch box. Or the switch went bad.
Do you have a volt meter for trouble shooting?
Remove the wire you believe goes to the light from the switch. Is the light still on?
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Old 09-11-2012, 05:01 PM   #7
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Light/Switch Problem


Quote:
Originally Posted by jrclen View Post
I think you mixed up two wires in the switch box. Or the switch went bad.
Do you have a volt meter for trouble shooting?
Remove the wire you believe goes to the light from the switch. Is the light still on?
No, I don't have a volt meter. I have tool that lights up if the lines are hot.
When you say remove the wire form the switch, which one (white/black)?
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Old 09-11-2012, 05:05 PM   #8
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Quote:
Originally Posted by joecaption View Post
The light.
Just a guess there was more then just one black, one white and a bare ground in that light fixture box.

Correct. Two of each together as at one time there was a ceiling fan.
But, we had a light up there before similar to what is posted.

If I can't troubleshoot this any further I will take the light down and take a pic of the box.
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Old 09-11-2012, 06:08 PM   #9
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Light/Switch Problem


Seems to me that the light will have to come down to fix it anyway, you have a switch loop at the switch just a black and white, the white should be the hot wire.
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Old 09-11-2012, 06:36 PM   #10
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Light/Switch Problem


What's the best way to trouble shoot to determine if the problem is on the switch end or the light end?
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Old 09-11-2012, 09:41 PM   #11
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Light/Switch Problem


You should have wired the light like the one you took down.
The problem is in the way the light was installed.
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Old 09-11-2012, 10:20 PM   #12
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Light/Switch Problem


I wonder if the wires were not twisted together, when the wire connectors were removed, couldn't rem how they were.
Have seen that before
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Old 09-12-2012, 12:38 AM   #13
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Light/Switch Problem


Just like everyone else make the good point you did indeed have a switch loop so take that luminarie down and unhook everything and turn the breaker back on and find which pair is supply.

Once you mark the supply then next pair will be switch loop but keep in your mind if this only next pair in the junction box then it will be a brezze to do this but if you have three pairs ( one supply and one for switch loop and one for feed to other boxes ) this will get more tricky but a basic DVM or anlog meter in ohm or contiuty setting will ring the switch loop pair.

So again as other members here mention take the photo of the luminarie from there we will go there.

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Old 09-12-2012, 01:30 AM   #14
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Light/Switch Problem


If you had a fan there, and the fan worked by pull chain and the light worked by the switch, then you tied the hot for the fan and the switch leg together in the ceiling.
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Old 09-13-2012, 04:52 PM   #15
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Light/Switch Problem


Here is the pic of the light fixture and also the diagram that came with it.
Maybe someone can see something I don't .
Thanks.
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