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Posted by Duane Bozarth on July 3, 2005, 1:56 pm
"ron_windham@hotmail.com" wrote:
>
> OK - I pulled off the top of the deck lamp junction box and isolated
> the wires going directly to the underwater bulb (recall that turning it
> on trips the GFI, which tests to be working correctly.
>
> Between the two leads to the bulb (green and black) there is
> continuity. Between each of the individual leads and the pool ground
> (electrical junction box) there is also continuity. I think this is
> expected from the green (ground) lead --- but I'm guessing the fact
> that the black lamp lead is also grounded is what's causing the GFI to
> trip.
>
> Is this right?
>
> What's the next step in repair? Pulling the wire to the niche and
> replacing --- or is pulling the lamp housing up the surface for
> inspection next?
>
Well, if the hot side is grounded there's a problem... :) But
"continuity" is something else..if the bulb is intact, there will be
continuity through the filament--but it shouldn't be a dead short.
I think b) is the next step...of course, I figured it was where you
needed to look to begin with, too... :)
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