Outdoor Recessed 4-pin Cfl Out - Electrical - DIY Chatroom Home Improvement Forum

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Old 10-19-2010, 04:18 PM   #1
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4-pin CLF out, it's not the bulb. What is it?

Hey folks, I got an outdoor recessed light that is out. It is located at an entrance way. Tried replacing the bulb and that didn't help (G24Q-2, 18W 4-pin). I'm guessing the problem is the ballast. I probed the socket pins with a voltmeter and got some wacky results (can't remember exactly what it was, but it didn't make sense).

The light never worked since we moved in, so I never could have observed flickering or anything like that.

Is there anything else I should try? How can I confirm that it is wired correctly?

The bulb is G24Q-2 (18W 4-pin). The ballast part number appears to be ICF2S18H1LDK, about $30.

I'm in California, so Title 24 would apply, which means I guess I can't change this fixture to a screw type (to save ballast headache again). Even if I could, I'm guessing the housing rating wouldn't match.

Last edited by shonuff66; 10-19-2010 at 05:42 PM.
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Old 10-19-2010, 06:14 PM   #2
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If a new bulb didn't fix it, replacing the ballast is the next step.

Life is uncertain -- eat dessert first!!
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