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brian3d

03:20AM | 11/11/05
Member Since: 01/11/05
23 lifetime posts
Bvelectrical
Hi all, a question for you...I noticed yesterday that one of my lights started burning a lot brighter than usual when I turn it on (no fluctuations, just a lot brighter). I know this is typically the sign of an open neutral. No other lights seem effected and I checked all outlets with a tester, they are fine. This light is a 3 way with a shared neutral on another circuit (so there are no neutrals in the switch boxes); I'm assuming the that the problem must be at the fixture connection. Does this logic sound right? Are there any other possibilities besides open neutral? Like a problem with the bulb or something?

Thanks in advance...

brian3d

02:03PM | 11/11/05
Member Since: 01/11/05
23 lifetime posts
Okay, so I first wanted to try just replacing the bulb...the old bulb actually broke coming out (th eglass part seperated from the metal part). Inside the socket it looks like there's a little discoloration, but nothing major. I put in a new bulb and it worked fine, not ultra-bright like it waas before. I took down the fixture and checked the connections; everything is in order. Any ideas? Is this something I should look into more? I ask because it seems unlikely that simply a bad bulb would act that way. Thanks...

MistressEll

04:22AM | 11/16/05
Member Since: 01/30/05
361 lifetime posts
Concerned may be sign of an arc fault...

Expand on this "residue".

brian3d

10:53AM | 11/18/05
Member Since: 01/11/05
23 lifetime posts
Thanks for the response...

It's not really a residue, just a brownish discoloration that's uniform along the insulation. I'm thinking its just a sign of age (30+ years). There are no suspicious marks anywhere else inside the ceiling box (plastic). Also, I checked the temperature inside the box after having the light on for a couple hours; it maxed out at 43 C...

Billhart

01:39PM | 11/18/05
Member Since: 04/25/05
1918 lifetime posts
I suspect that there was a small crack in the glass that allow in some air.

I have seen that a few times.


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