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Puzzle: Power coming to fixture socket, why no light?

Posted by flyleft (My Page) on
Mon, Aug 23, 10 at 11:16

Hi--I'm writing for my DH, who is scratching his head trying to figure out why our porch light suddenly won't work. It was working fine, and suddenly stopped. Of course we tried changing out the bulb, but no light. He's also tested to make sure there was power coming to the bulb socket, and sure enough, there is.

So what could be causing the problem? Our other porch light is downstream on the same circuit, and is working fine. We'd very much appreciate any insights/leads. TIA.


Follow-Up Postings:

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RE: Puzzle: Power coming to fixture socket, why no light?

Check the center tab of the socket. With the power off and the bulb out, use a pencil or other small tool to gently lift the center tab up a little, allowing better contact with the center of the bulb.


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RE: Puzzle: Power coming to fixture socket, why no light?

Check the bulb too. I've run into some, several times over the years, where the center terminal on the bulb didn't protrude enough and wasn't touching the center tab.


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RE: Puzzle: Power coming to fixture socket, why no light?

Thanks, guys (gals? don't want to presume :)). Wish I could say DH hadn't tried these already. Any other ideas?


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RE: Puzzle: Power coming to fixture socket, why no light?

All I can figure is a bad batch of new bulbs. Try the bulbs in another lamp. If they do work someplace else, must be a poltergeist at work.


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RE: Puzzle: Power coming to fixture socket, why no light?

Exactly how did he verify there was electricity at the socket?
It is possible the neutral side is open depending on how he measured it.


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RE: Puzzle: Power coming to fixture socket, why no light?

I vote for a bad connection that will not carry the load even though it is very minimal.


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RE: Puzzle: Power coming to fixture socket, why no light?

ron and countryboy, thanks for your replies. DH will try rewiring it...the odd thing is that it worked for several days and then suddenly stopped--does that affect your vote in any way, cb?

What does "the neutral side was open" mean? He checked it with a voltimeter.

Thanks again.


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RE: Puzzle: Power coming to fixture socket, why no light?

Where did he put the probes? If he didnt place one on the threads but used some other metallic part of the fixture, the wire leading to the threaded part which should be connected to the neutral.


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RE: Puzzle: Power coming to fixture socket, why no light?

Well, just a followup--my DH rewired the connection and it works now! He recut the black lead out of the fixture and bound it in tighter with the other ones. the other sets of wires (white and ground) were fine.

Thanks for your help.


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