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Old 03-16-2012, 07:38 PM   #1
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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!

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Old 03-16-2012, 07:45 PM   #2
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GFCI - White & Black Both HOT?


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.

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Old 03-16-2012, 07:46 PM   #3
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GFCI - White & Black Both HOT?


What kind of tester are you using to verify the wires are hot?
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Old 03-16-2012, 09:09 PM   #4
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GFCI - White & Black Both HOT?


Is each of the wires showing 120v to the ground wire?
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Old 03-17-2012, 09:04 AM   #5
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GFCI - White & Black Both HOT?


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.
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Old 03-17-2012, 09:12 AM   #6
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GFCI - White & Black Both HOT?


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.
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Old 03-17-2012, 10:08 AM   #7
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GFCI - White & Black Both HOT?


That is the symptom of an open neutral.
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Old 03-17-2012, 11:01 AM   #8
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GFCI - White & Black Both HOT?


Quote:
Originally Posted by joed View Post
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)
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Old 03-17-2012, 03:17 PM   #9
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GFCI - White & Black Both HOT?


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?
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Old 03-17-2012, 03:33 PM   #10
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GFCI - White & Black Both HOT?


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
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Old 03-17-2012, 05:41 PM   #11
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GFCI - White & Black Both HOT?


Look in the nearest working box on the same circuit. If it's not there then keep looking in other boxes on the circuit.
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Old 03-19-2012, 08:29 AM   #12
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GFCI - White & Black Both HOT?


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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