Can't fix light

[scrooge]

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I've seen thermal protection devices go odd. Not for sure if required on compact fluorescent cans tho.Phillips lamps ok with me.bh.

 

[boboelectric]

You must feel like a boob

 

[AES1005]

Conductors?

Conductors?

Have you tried trading out a lamp that does work? maybe in the conductors feeding that one light. Always some weired stuff out there. good luck.

 

[mcfly]

i have once hooked up a ballast and had a similiar problem in a denists office.i changed the ballast and it worked but the doc said it stoped a day or two later and had flickered. i brought a new ballast and changed it it has work for years. the reason for it is a bad ballast it does happen. questions does the ballast you changed have a high enough output(t12 vs t8). another trick an old timer showed me but would not be approved by everyone. so here it is if disconnect the hot leg while the ballast has power going to it on 120 volt ckts you should get a spark if the ballast is still good. no spark equals new ballast. spark means check the bulbs again.

a

 

[E.C.]

Man.. I have the same problem with Phillips T8's. Our facility just did a lighting retro a year ago and now I am replace ballasts and lamps. The lamp burn about 12 hours a day but the ends are burnt. There is a black dot on each side of the cathode. ????