Question about Cooper Lighting AL65FL 65-Watt Fluorescent Area Light Safety and Security Light with Photo Control

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What could the problem be that causes my dusk to dawn light to not work when the photoelectric switch tests a closed circuit in the dark and light?

Put new bulb in place of bad. Fixture stopped lighting after a couple of days. Checked breaker, power, board, and wiring. PE shows continuity between load and line in dark and light.

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The fact that the photo switch shows continuity in dark and light is bothersome since the whole point of the switch is to break continuity when it's light outside. If the switch always shows continuity, I would replace it.

It is also, as William suggested, very easy to put the bulb in in such way that it isn't reaching the electrical contact in the base of the socket. It is very easy to get the bulb slightly cross-threaded so that, combined with the oxidation on an older socket, the friction gets heavy enough to keep the bulb from going all the way in.

Another, less common, problem is getting a bad replacement bulb. It has happened to me once, I think, in my lifetime that the bulb I put in to replace a burned-out bulb was DOA.

Hope this is helpful. Good luck!

Posted on Nov 18, 2014

Testimonial: "Same thoughts on the continuity. I watched a video on how to disassemble bulb to test, a little scared to try. Thank you."

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Often times these cheap fixtures have very poor contacts for the bulb itself. WITH THE POWER OFF, you can try to use a screwdriver or roto tool with a wire brush to clean the contacts. Might just be time to replace the fixture.

Posted on Nov 17, 2014

Testimonial: "The contact does look like its off center and sprung upward now that I look at it. Thank you"


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