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-   -   GFCI - White & Black Both HOT? (http://www.diychatroom.com/f18/gfci-white-black-both-hot-137267/)

hagler 03-16-2012 07:38 PM

GFCI - White & Black Both HOT?
 
Trying to repair/replace GFCI on a kitchen island.
Standard 2-wire coming into the GFCI, but BOTH the white & black wires are HOT......obviously, the GFCI is not working.

Tried to troubleshoot a little....found that other receptacle (dining room) on the same circuit has incoming and outgoing 2-wire and ALL 4 wires (2 black, 2 white) are HOT.
There is one other GFCI (in the dining room) on the same circuit that is working....however, when I remove the black wire from the LOAD side, all of the same wires on the other 2 outlets (GFCI & the Standard) are still ALL HOT.

Neither the GFCI or the standard receptacle are working.

Note: the kitchen island has two GFCIs....the other one is working.
The one GFCI on the island (not working) and the other 2 receptacles mentioned (GFCI in the dining room & Standard in the dining room) are on one circuit.....however, when I shut the breaker for the other GFCI on the island (that is working), this also shuts off the GFCI in the dining room that is working & is also on the same circuit as the other GFCI in the island that's not working....?

Please help...thanks in advance!

Missouri Bound 03-16-2012 07:45 PM

Hot? Did you use a tester? What do you consider hot? Power going through a white wire doesn't make it a hot wire, just means that it is part of an energized circuit.

rrolleston 03-16-2012 07:46 PM

What kind of tester are you using to verify the wires are hot?

plummen 03-16-2012 09:09 PM

Is each of the wires showing 120v to the ground wire? :)

hagler 03-17-2012 09:04 AM

Yes...Each of the wires going to the GFCI are showing 120v to the ground wire.
I just used a volt tester and tested each wire/screw to ground.

Same thing for the outlet in the dining room...all wires are 120v to the ground wire.

Should I trace the wires coming into the GFCI using a resistance test? Then I can know where the wires are coming from?
What to do next?
Thanks for the help.

rrolleston 03-17-2012 09:12 AM

Sounds like something is wired wrong in a box somewhere or maybe in your panel. What do you get when you test between the hot and neutral.

joed 03-17-2012 10:08 AM

That is the symptom of an open neutral.

kbsparky 03-17-2012 11:01 AM

Quote:

Originally Posted by joed (Post 879470)
That is the symptom of an open neutral.

With a load imposed.

Or a high-impedance input digital meter that is reading phantom voltage on disconnected lines ... (GFCIs disconnect both the hot and neutral when tripped)

hagler 03-17-2012 03:17 PM

Just tested both the GFCI and the outlet in the dining room...both look like they have an open neutral.
When I tested between hot and neutral nothing registered...same on both.

How do I go about fixing an open neutral?

Dierte 03-17-2012 03:33 PM

Quote:

Originally Posted by hagler
Just tested both the GFCI and the outlet in the dining room...both look like they have an open neutral.
When I tested between hot and neutral nothing registered...same on both.

How do I go about fixing an open neutral?

Gotta find where its open. Shut off your breaker and see what else goes off. Start testing those devices

joed 03-17-2012 05:41 PM

Look in the nearest working box on the same circuit. If it's not there then keep looking in other boxes on the circuit.

hagler 03-19-2012 08:29 AM

Found the loose neutral connection in nearest working box - problem solved.
Thanks for all of the help - this forum has been great.


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