Prompted by Randall's questions, I looked more closely. The labels on the
fixtures do indeed say T12 (40 or 32W) and T8 (32 or 25W). Opening it up, the
label on the ballast agrees (and they are electronic).
The ballast ground wire is connected the fixture. The cord does have a ground
prong, but as far as I can tell, it isn't connected to the fixture in any way.
So I'll make that connection and see if it helps.
-Darrell
On Jan 28, 2010, at 10:05 AM, Randall wrote:
>> A couple of years ago I put in a bunch of T8 fixtures (I
>> think they can actually take either T8 or T12 bulbs),
>> supposedly electronic ballast.
>
> Sockets are the same, but the ballasts are not. I learned this the hard
way
> with a kitchen fixture that I mistakenly installed T12 bulbs in. The
> ballast died within about 3 years (didn't realize it was a T8 ballast until
> after I removed it and read the label). You might double-check that you
are
> using the lamps that match your ballasts. This is my first experience with
> T8 bulbs, but I've also found that some T12 ballasts don't like "energy
> saver" T12 bulbs.
>
>> I found that just removing and
>> reinstalling the bulb would "fix" the problem for a while.
>
> Are the fixtures properly grounded?
>
> -- Randall
>
--
Darrell Walker
66 TR4A IRS CTC67956L
Vancouver, WA, USA
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