Had a bulb go out in a twin bulb 8' light. Loud humming after it went out. Replaced the bulb because I had a spare, no dice. Replaced the ballast. Light works but either the bulbs or the ballast is humming loud enough that I can hear it outside the shop. Ideas?? Thanks, Pat
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Woodworking is therapy.....some of us need more therapy than others. <ZERO> -
I've changed hundreds (if not over a thousand) of flourescent lights at work over the years. I never change a single 4' bulb, I always change the pair. With 8' bulbs you land up changing the pair about 20% of the time or the other bulb causes problems. If you put 2 new bulbs in, I bet it will be ok. Don't use that single new bulb, get 2 new 8' bulbs for the test. -
Quick, almost stupid question, but from experience...is it possible that you (or someone you know
) rewired the outlet/box recently? If so, I'd check to make sure it isn't running 220/240. 110/120 flourescent lights plugged into a 220/240 make an EXTREMELY loud sound. DAMHIKT, I explained it earlier in another post, and am still living down the jokes, which is better than the alternative.
"It's a dog eat dog world out there, and I'm wearing Milk-Bone underwear."- Norm (from Cheers)
Eat beef-because the west wasn't won on salad.Comment
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could you have rewired it improperly? it's fairly easy to do on the magnetic style ballasts.Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas EdisonComment
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I'll get another new bulb I guess. Wired the new ballast the same as the old one. Wire color didn't change between new and old. One black, white, red and blue same same. Haven't changed anything in the box in three months. PatWoodworking is therapy.....some of us need more therapy than others. <ZERO>Comment
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