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Old 01-27-2012, 01:07 PM   #1
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Trouble with lighting circuit


I have 4 light circuits on a 15 amp breaker in my laundry room/carport. My carport light we keep on 24/7 for security and use a florocarbon bulb. Trouble is, it burns out frequently. Also, one of my lights inside, a flourescent light, works off and on.

Could there be something wrong with the wiring connections to cause that to happen?
Thanks.

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Old 01-27-2012, 01:23 PM   #2
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Trouble with lighting circuit


Maybe start by checking voltages and checking for loose connections.

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Old 01-27-2012, 05:44 PM   #3
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Trouble with lighting circuit


If any lights are not working correcttily ?
Then yes you have a problem !
Most likely cause is a loose/dirty connection !
Start at the problem light and work backwards
checking all connections, dont forget to check the
switchs also, a dirty contact in the switch can also cause
you problems !

P.S. What is a florocarbon bulb ?
Is it a CFL ?
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Old 01-27-2012, 07:34 PM   #4
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Trouble with lighting circuit


Is the CFL bulb in the carport in an enclosed fixture? If so, that's why they keep burning out. Enclosed fixtures trap the heat, and those CFLs with their cheap Chinese capacitors can't take any heat buildup.

As for the fluorescent fixture that sometimes works and sometimes doesn't, it could be several things. It may not be properly grounded. Or it may need a new tube, a new ballast, or (if it's an old fixture) a new starter.
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Old 01-27-2012, 09:07 PM   #5
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Trouble with lighting circuit


Quote:
Originally Posted by fa_f3_20 View Post
Is the CFL bulb in the carport in an enclosed fixture? If so, that's why they keep burning out. Enclosed fixtures trap the heat, and those CFLs with their cheap Chinese capacitors can't take any heat buildup.

As for the fluorescent fixture that sometimes works and sometimes doesn't, it could be several things. It may not be properly grounded. Or it may need a new tube, a new ballast, or (if it's an old fixture) a new starter.
Both are something I have thought of. I changed the florescent fixture recently after the previous two experienced the same problems. Will check the ground though. With the outside light, it has a glass shroud but its completely open at the bottom. Heat could be an issue in the summers as its hot here (Tucson, Arizona) but just changed one today and its been in the mid 60's for weeks for a high.

I forgot to mention that I also have a ceiling fan powered from the same circuit but none of that would add up to 1440 watts even if all were on at once.

My wife is bugging me that something must be wrong with the wiring but I really am skeptical that to be the case. The two inside overhead light sockets with florocarbon bulbs don't burn out frequently but the outside one does. We leave the outside one on for security mostly 24/7. I wonder if that might be an issue?
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Old 01-27-2012, 09:10 PM   #6
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Trouble with lighting circuit


Flourocarbon in my vernacular meant CFL
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Old 01-28-2012, 12:23 AM   #7
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Trouble with lighting circuit


Is your outdoor luminaire is enclosed ? if so some of the CFL screw in bulbs can not work with enclosed luminarie due the heat will kill the electronic ballast.

Second thing if you have MWBC ( Multi Wire Branch Circuit ) you will have to check the connection espcally with netural connection that will be first thing can cause a mess if not done right.

Merci,
Marc
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Old 01-28-2012, 10:43 AM   #8
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Trouble with lighting circuit


is your outdoor light on a photo cell? cfl's do not last long with these.

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