groo wrote on 9/29/2007 3:51 PM:
"Pszemol" wrote:

"George Patterson" wrote in message
news:TMEJi.915$Wo4.18@trnddc03...
I have one of the Orbit fixtures with four daylight bulbs and two
actinics. One
of the daylight bulbs is behaving erratically. It does not come on
when the others come on in the morning. It may or may not come on
later in the day.

I replaced the bulb about 6 weeks back. For several weeks after that,
it would come on when the other three came on, but then it got
erratic. The one which it replaced was less than a year old.

What's your guess as to the problem?
Socket?
Wiring?
Moisture?

Hard to guess.. I would try to measure.


Could be a bad starter.



I'm guessing that the orbit does not have a starter,
so that would leave the ballast as being the most
likely thing wrong.

Wayne Sallee