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Celiling Fan Light

user-429284's picture

Have a ceiling relatively new (6 mos. old) ceiling fan w/ OEM light kit. after leaving light on for 1 - 2 hours, 30 - 60 seconds after turning it off, it flashes like the old fashioned camera light bulbs. Just a single flash & that all. I am thinking there may be a capacitor in there? ideas?

Thanks

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I would guess that this is a (post #207285, reply #1 of 3)

I would guess that this is a setup where the light and fan are controlled from a wall switch, but through a single pair of wires?  In that case the light switch is electronic.  And likely the lamp is fluorescent?  An electronic switch with fluorescent lamp is prone to this sort of thing.


Of all the preposterous assumptions of humanity over humanity, nothing exceeds most of the criticisms made on the habits of the poor by the well-housed, well-warmed, and well-fed.  --Herman Melville

The switches are one double (post #207285, reply #2 of 3)

The switches are one double stack of single pole switches in a standard plastic box. one switch controls the light, other the fan. Ran #14 3+ wire. the white is common to both, red to light, black to fan.

as I recall, the lights themselves are small pigtail florescents........what ever came w/ the kit.


THANKS

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In that case I'd guess that (post #207285, reply #3 of 3)

In that case I'd guess that the flashing is occurring due to something going on in the CFL electronic ballast.  Probably, as you suggest, a capacitor discharging.

I have seen fluorescents that "stutter" maybe 1-2 seconds after being turned off, but can't say that I've seen it tens of seconds later. Sounds like a poor ballast design.


Of all the preposterous assumptions of humanity over humanity, nothing exceeds most of the criticisms made on the habits of the poor by the well-housed, well-warmed, and well-fed.  --Herman Melville