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Old 08-18-2012, 04:16 PM   #1
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GFCI Problem With One Red and Two White

I'm trying to replace a outlet in my kitchen with a GFCI outlet.

When I looked at the old outlet, it had a red wire going into the line, and white wire going into the line, and a white cable going into the load. There was no wire going into hot part of the load. There is also a ground wire going to the ground.

I wired up the GFCI the same way, but it didn't work.

I took a closer look inside the box, and there are two sets of cables coming into the box.

The first:
red - to the hot line on the outlet
white1 - to the neutral line on the outlet
black1 - wire nutted to black2

The second:
white2 - to the neutral load on the outlet.
black2 - wire nutted to black1

What is the proper way to wire this outlet?

If you need more information, let me know.

I alos measured the voltage from red to white1 and got 120V. From Red to white2 is 0V.



Last edited by gutter007; 08-18-2012 at 04:23 PM. Reason: added information
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Old 08-18-2012, 04:51 PM   #2
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I'm assuming you were removing a standard duplex receptacle and replacing it with a GFI. If that is the case, then you need to turn power off to the main breaker before you remove the whites from the GFI. You have a multi-wire branch circuit and if you take those whites apart without turning off both circuits of the MWBC you run the risk of toasting any electronics plugged into the black circuit. After you have turned off the main, take the whites off the GFI and pigtail a short piece of white #12 and put that pigtail to the line side neutral. You should not have to do anything with the red that is already going to the GFI.


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Answers based on the National Electric Code. Always check local amendments.

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