GFCI will not reset

[ELA]

RusticKris,
A couple of people have questioned if you really have 120VAc to the receptacle in question. I missed where you stated the measured voltage? ( preferably under some load)

The GFCI does a test, to see if it can trip, when you push reset. The success of this test is dependent upon the line voltage level at the time.
( test is also depended on whether there is leakage on the load but you seem to have eliminated this since there is no downstream load)

I tested this function on a Leviton GFCI a while back. Results will vary some from device to device but in the one I tested anything below 108V started to get erratic.
At a 100-108V the reset button chattered a bit as it was reset , but did reset. At 95V it struggled to reset. Anything below 90V and it would fail completely.

Assuming you do measure a supply above 108V ( under load) does the unit chatter excessively as you attempt to reset it?

Your test results, on a separate line cord, will be helpful.

 

[Sierrasparky]

I generally use Leviton. I too have seen some chatter on reset. Will check actual voltage next time.

 

[kwired]

I was thinking more in the line of a broken/loose branch circuit neutral.
People rarely think about the service being a MWBC, but you're right, it is.

The service is not a multiwire branch circuit, it is just a multiwire circuit, same with feeders. Unless you have a two wire service or feeder, or an ungrounded or corner grounded delta system.

 

[eHunter]

The service is not a multiwire branch circuit, it is just a multiwire circuit, same with feeders. Unless you have a two wire service or feeder, or an ungrounded or corner grounded delta system.

Or would a 120/240 service be a shared neutral(grounded conductor) circuit? :happyyes:

 

[kwired]

Or would a 120/240 service be a shared neutral(grounded conductor) circuit? :happyyes:

:?That is a multiwire circuit.

 

[Little Bill]

The service is not a multiwire branch circuit, it is just a multiwire circuit, same with feeders. Unless you have a two wire service or feeder, or an ungrounded or corner grounded delta system.

MWC, but you knew what I meant.:slaphead:

It is a branch off of the utility service though.

 

[kwired]

MWC, but you knew what I meant.:slaphead:

It is a branch off of the utility service though.

I kind of figured you knew that, but one word can sometimes change the meaning of everything

 

[Wenty4]

GFCI will not reset

I like flatlander's response "wire it to a new circuit and see if it works"

 

[cowboyjwc]

I just hope the OP comes back and tells us what he found.:happyyes:

 

[readydave8]

Got to thinking and remembered similiar problem, changed out rarely used GFCI recep, 2 weeks later new one failed.

Turned out to be full of little bitty ants, probably what got the first one.

 

[flatlander]

those buggers love GFCI

 

[GoldDigger]

Got to thinking and remembered similiar problem, changed out rarely used GFCI recep, 2 weeks later new one failed.

Turned out to be full of little bitty ants, probably what got the first one.

Happened to me too in a mobile home kitchen. Once the ants had been killed off and the ones inside the GFCI had dried up it started working again, but I replaced it anyway.