09:32AM | 01/12/03
Member Since: 01/11/03
2 lifetime posts
I replaced my bathroom fan today with a new one, I wired it the same way the
old one was. The fan has 2 receptacles, white and black, the white one is
for the light and black for the fan. When I plug the light and fan in to the
receptacles and leave the light casing hanging, it works fine. But when I
mount the light casing to the screw stud the light doesn't work and it pops
the bathroom ground fault outlet.
I know the light is casing is most likely grounding it out but I can't
understand why. Can anyone help me out?

The light housing is not touching the base at all, This fan has a main case
( metal frame or casing) then there is a fan insert which is made up of the
fan,fan motor and metal brace that the light casing is attached to.

My power wires going into the fan base are white,black and copper wires

I connected the white from each recepacle to the white power wire
I connected the black from black recepacle and blue from white recepacle to
the black power wire
the power ground is connected to the wire plate ground on the fan box ( or casing).

the only time this fan/light works right is when it is not screwed on to the
fan unit, the minute the light casing touches the screw which it is suppose
to be connected to the light goes out and it blows my ground fault recepacle
on the wall.

I took the fan recepacles out of the unit and wired it to a make shift wire
in my shop then pluged the fan unit in the black recepacle and the light in the white recepacle
and both work fine, then I touch the light casing to the fan and it still
works fine.
I'm stummped?????????
can anyone help me

If this helps any I wil describe how the fan directions say to hook it up.
white wires go to white black to black and blue to red.......only problem is
I have no red wire so I connected blue to black.


05:30PM | 01/12/03
Member Since: 01/01/03
35 lifetime posts
It sounds like you're attatching the wires incorrectly. You may want to use an ohmmeter to identify the ground wire definitively, where you're just assuming the wiring setup now.



02:42PM | 01/13/03
Member Since: 11/10/02
5 lifetime posts
How does the wire get into the fixture? The clamp (bushing) may have pierced the insulation of the wire. Check to see if there are any abrasions on the wire where it passes into the fixture. Remember, it doesn't take much current leakage at all to trip a GFCI. If the neutral wire is nicked at the bushing, you may get a tripped GFCI.




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