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Old 03-10-2011, 06:33 PM   #1
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Florescent Light issue


Our community hall has several long (about 8') double florescent lights. Some are working and some aren't. In one, one of the bulbs works but the second side does not. They are fairly old, ... as in over a decade or two, so replacement parts may be a problem. What could cause the problem? Ballasts, old bulbs wiring? And, what would be recommended.
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Old 03-10-2011, 07:30 PM   #2
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Florescent Light issue


Typically replacement parts should be fairly easy to get. If the ballast are really old, you'll most likely be looking at needing ballasts for the most part (and a good idea to change the bulbs too, unless you know they are new), and maybe some lampholders if some are broken, but try new bulbs first if you have a couple extra. Swap out both at the same time...it should give you an idea if it's just the bulbs or the ballast.

You might consider replacing your current fixtures with new T8 fixtures. They're more efficient.

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Old 03-11-2011, 01:40 AM   #3
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Florescent Light issue


Start with flipping the bulbs around, by this I mean keep them on the same side, but switch the ends to the other end. (Rotate 180 degrees on the same side)

If this doesnt work, get new bulbs and if those dont illuminate, rotate as above......

If that still doesnt work, get a new ballast or consider T8 fixture
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