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Old 12-31-2010, 08:32 PM   #1
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Why do these old flourescent fixtures fail?


We have a kitchen flourescent fixture that would sometimes not start on cold nights, other times take an hour or so to get started. The new fixture I replaced it with works fine.

Why do these old fixtures start having problems starting, especially when it is cold? Could I have just replaced the ballast?

Thanks

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Old 12-31-2010, 08:38 PM   #2
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Why do these old flourescent fixtures fail?


The problem is generally with the bulbs.......the type of gas used in the older flourescent bulbs was a problem in cold environments. Bulbs today are made with Krypton gas, I believe, and work much better in cold conditions. I think buying a whole new light fixture was the way to go.

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Old 12-31-2010, 08:39 PM   #3
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Why do these old flourescent fixtures fail?


Yeah, usually either the ballast fails or the starter
Cost of the ballast, trouble to wire a new ballast in an old fixture you are better off with a new fixture
Did you try new bulbs ?
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Old 01-01-2011, 01:50 PM   #4
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Why do these old flourescent fixtures fail?


Fluorescent lights don't start well in cold temperatures - especially the old "preheat" type. The name should help explain why.

This is not a sign of anything failing. It's just the way fluorescent lights are.
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Old 01-01-2011, 01:59 PM   #5
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Why do these old flourescent fixtures fail?


Quote:
Originally Posted by emolatur View Post
Fluorescent lights don't start well in cold temperatures - especially the old "preheat" type. The name should help explain why.

This is not a sign of anything failing. It's just the way fluorescent lights are.
You can get low temperature fixtures that are designed to start in colder temperatures. I use these in my garage, which is unheated. They do start up immediately even in cold weather, but it takes the bulbs a few minutes to warm up to full light output.
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Old 01-01-2011, 02:15 PM   #6
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Why do these old flourescent fixtures fail?


Hey "clashley", I'm in Albany, Ga. also and do the same: I turn my fluorescent lights on in my shop in November and by June they are at full brightness .
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Old 01-01-2011, 02:35 PM   #7
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Why do these old flourescent fixtures fail?


ballasts
you can get electronic ballasts and they are great in the cold

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