We have 5 ceiling-mounted, hard-wired, dual-tube flourescent lights in our garage, switched from the wall. The ballasts are black rectangular boxes.
When I turn them on, two of them don't usually light. If I flip the switch 15-20 times, these lights will come on - sometimes one bulb, sometimes both bulbs, & sometimes one or both will just flicker.
If I continue flipping the switch until they both illuminate fully, and leave them on for an hour or more (approximately), then they will light with no problem when I turn them off and back on again.
Are fluorescent ballasts heat sensitive, so even if failing, they will work okay if heated up? Or does it sound like it could be just the bulbs?
I'd just change the bulbs, but it's an 18 foot ceiling, and I'd rather at least have a clue before I climb up there and start messing around.
Also, even the ballasts for these fixtures are a bit pricey, so I'd like to know before I invest the money in ballasts I may not need.
Thanks!
2007-03-25
08:09:22
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6 answers
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asked by
Don P
5