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Old 02-16-2016, 06:08 PM   #1
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Garage GFCI wont reset


Hello,

A few months ago, our garage GFCI wouldn't reset after a rain storm which was annoying because both GDO outlets are tied into it.

I replaced the GFCI thinking it was bad (original from when the house was built in 2000). This fixed the issue and it reset fine and has been working well for the past few months.

Today we had a decent rain storm and it tripped. I tried resetting it and it immediately trips 5 seconds later.

The circuit goes Garage wall GFCI (TP) -> GDO 1 -> GDO 2 -> Single basement outlet -> back yard outlet (TP/WR) -> front yard outlet (TP/WR).

The only 2 spots I can see possibly getting wet are the front and back yard outlets but both are Weather Resistant and have newer covers.

I opened all but the GDO outlets and they all appear dry yet the GFCI keeps tripping.

The one back yard outlet had a tiny tiny knick in the neutral wire which I taped with white electrical tape. Hot looked ok though.

Any ideas?

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Old 02-16-2016, 06:12 PM   #2
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Did you try unplugging the GDOs and see if you can reset ?

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Old 02-16-2016, 06:32 PM   #3
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I would temporarily disconnect the feed to the outdoor receptacles at the basement receptacle.
If the GFCI will reset, you will know the problem is somewhere outdoors.
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Old 02-16-2016, 06:37 PM   #4
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What oso954 said, agree 100%.
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Old 02-16-2016, 10:24 PM   #5
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Should have read this first.

That makes sense to try - however, after waiting a little while from putting both OD plugs back together from inspecting them the GFCI stayed on (for now). It seems like this issue only happens after a good rain which is why I'm almost certain they are the culprit.

But now I can't test per above since it has been staying on. I guess I will have to wait until next time?

FWIW both GDO are less than a year old so I don't believe they could be the root cause.
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Old 02-16-2016, 11:40 PM   #6
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Or try squirting them with the hose.
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Old 02-17-2016, 12:38 AM   #7
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Just went out and checked and sure enough it tripped again... I'll try unhooking the outdoor outlets tomorrow and see what happens, or I may wind up calling an electrician - I've been chasing this issue for a while now and it's getting frustrating.
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Old 02-17-2016, 08:01 PM   #8
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My guess is a ground fault - probably at your outdoor devices. I recently went through the same exercise with a new outdoor Christmas decoration (wireform moose with lights). Determined it would trip GFCI only during rain or wet snow and eliminated cord connections, etc. The moose went back.

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