Humming sound


Old 10-21-06, 01:57 PM
Thread Starter
Join Date: Oct 2005
Posts: 69
Humming sound

Just installed a new flourescent light fixture and the thing has alittle humming sound coming from it when I put bulbs in. Why is it doing this and how can I fix it. Thank you
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Old 10-21-06, 01:59 PM
Join Date: Sep 2003
Location: Central New York State
Posts: 13,973
Is the fixture brand new, or just new to you? Is the ficture properly grounded? Did you get the wires connected properly?
Old 10-21-06, 02:43 PM
Thread Starter
Join Date: Oct 2005
Posts: 69
Fixture is brand new and wires are connected properly. Ground is good too. I installed two of them one of them does it and the other doesn't. Don't understand. I am starting to think it needs a new ballast.
Old 10-21-06, 03:28 PM
Join Date: Sep 2002
Location: welland ontario
Posts: 5,599
Cheap fixtures often hum. Ballasts have a noise A through F. A being the quietest. Usually you get what you pay for.
Old 10-22-06, 09:10 AM
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Join Date: Feb 2006
Location: North of Boston, MA.
Posts: 2,113
Try re-secureing the ballast, some times this helps.

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