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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Fluorescent light fixture problem
We bought a fluorescent light fixture at Home Depot for our kitchen
about a year ago. It uses 3 48" T8 bulbs. It stopped working (all bulbs) a few days ago. I had one extra new bulb, so I tried replacing each of the bulbs. That didn't work, so I replaced all of them. Still not working. The only other symptom was that before it went out completely, for a few days it occasionally quickly flashed off then back on. Any ideas as to what my next step should be? Thanks! Woodpecker |
#2
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Fluorescent light fixture problem
"David Nebenzahl" wrote in message s.com... On 4/4/2009 4:40 PM woodpecker spake thus: We bought a fluorescent light fixture at Home Depot for our kitchen about a year ago. It uses 3 48" T8 bulbs. It stopped working (all bulbs) a few days ago. I had one extra new bulb, so I tried replacing each of the bulbs. That didn't work, so I replaced all of them. Still not working. The only other symptom was that before it went out completely, for a few days it occasionally quickly flashed off then back on. Any ideas as to what my next step should be? Yes; replacing the ballast. (Unless someone here knows some way of testing the ballast.) But first, just make sure that power is actually reaching the fixture, and that there are no intermittent connections internal to the fixture. *Then* suspect the ballast ... Arfa |
#3
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Fluorescent light fixture problem
On 4/4/2009 4:40 PM woodpecker spake thus:
We bought a fluorescent light fixture at Home Depot for our kitchen about a year ago. It uses 3 48" T8 bulbs. It stopped working (all bulbs) a few days ago. I had one extra new bulb, so I tried replacing each of the bulbs. That didn't work, so I replaced all of them. Still not working. The only other symptom was that before it went out completely, for a few days it occasionally quickly flashed off then back on. Any ideas as to what my next step should be? Yes; replacing the ballast. (Unless someone here knows some way of testing the ballast.) -- Made From Pears: Pretty good chance that the product is at least mostly pears. Made With Pears: Pretty good chance that pears will be detectable in the product. Contains Pears: One pear seed per multiple tons of product. (with apologies to Dorothy L. Sayers) |
#4
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Fluorescent light fixture problem
"Arfa Daily" writes:
"David Nebenzahl" wrote in message s.com... On 4/4/2009 4:40 PM woodpecker spake thus: We bought a fluorescent light fixture at Home Depot for our kitchen about a year ago. It uses 3 48" T8 bulbs. It stopped working (all bulbs) a few days ago. I had one extra new bulb, so I tried replacing each of the bulbs. That didn't work, so I replaced all of them. Still not working. The only other symptom was that before it went out completely, for a few days it occasionally quickly flashed off then back on. Any ideas as to what my next step should be? Yes; replacing the ballast. (Unless someone here knows some way of testing the ballast.) But first, just make sure that power is actually reaching the fixture, and that there are no intermittent connections internal to the fixture. *Then* suspect the ballast ... And, if it's an electronic ballast that isn't potted, could be bad solder joints on its PCB, though at this point with it being totally dead, something may have blown. -- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/ Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/ +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html Important: Anything sent to the email address in the message header above is ignored unless my full name AND either lasers or electronics is included in the subject line. Or, you can contact me via the Feedback Form in the FAQs. |
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