GFCI problems

[p051981]

Hey yall, I know im probably in the wrong forum. I was at work today and i ran into a small problem. Someone ran a multiwire circuit feeding two GFCI. Each one has seperate hots but they are sharing a neutral. When i arrive at the house, both GFCI was trip. I reset the left GFCI and as soon as i pushed the reset on the right one (by they way they are side by side) they both tripped. I took the load side of the GFCI off and the problem didnt go away. Can a GFCI share a neutral or are they require separate neutrals?

 

[Buck Parrish]

Yes,
You must make a connection with the neutral on the line side of the 1st gfci.
Then go to the next gfci. You don't use the load side on the first one.
Or make a splice on the neutral in the j-box at the first gfci

 

[Dennis Alwon]

Hey yall, I know im probably in the wrong forum. I was at work today and i ran into a small problem. Someone ran a multiwire circuit feeding two GFCI. Each one has seperate hots but they are sharing a neutral. When i arrive at the house, both GFCI was trip. I reset the left GFCI and as soon as i pushed the reset on the right one (by they way they are side by side) they both tripped. I took the load side of the GFCI off and the problem didnt go away. Can a GFCI share a neutral or are they require separate neutrals?

If you use a dp GFCI breaker then the circuit will work fine.

Also as Buck mentioned the line can share the gfci at the receptacle but the loads must be separate.

 

[p051981]

so i must connect the neutral to the first gfci and then come out of there to the next one? currently the neutral is pigtail.

 

[480sparky]

A MWBC feeding two GFIs with downstream loads will not work.

As soon as a load is introduced, the GFIs will sense an imbalance and open the circuit.

You must either seperate the neutrals...

Or install a 2-pole GFI breaker,

 

[Dennis Alwon]

so i must connect the neutral to the first gfci and then come out of there to the next one? currently the neutral is pigtail.

There should be a pigtail of the neutral on the line side of the GFCI receptacle not on the load side

 

[quogueelectric]

Just pigtail the left gfci to black circuit to the line side only then pigtail the right gfci to red circuit to the line side only .This will give you 2 available circuits. Dont forget the ground wire if available. You will only have trouble trying to feed thru with a 3 wire ,not on the line in only connection.