Questions tagged [gfci]

Ground Fault Circuit Interrupter(GFCI). Sometimes known as a GFI, or a residual-current device (RCD or RCCB). Can refer to receptacles as well as circuit breakers. They detect a leak in current, or an imbalance between the current on the hot and neutral wires. This is used to prevent electrical shock. Use with the [electrical] tag

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31 views

Connecting new GFCI in the middle of a circuit run

I have 4 outlet locations in a circuit run. From left to right, the line feed is directly to outlet location #3. I want a GFCI to protect all 4 outlets, so I want to put the GFCI in location #3. Can I ...
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Is it normal for GFI test button to trip GFI when the circuit is dead?

My welder has been tripping the GFI on the circuit in the garage after I have been using it a while. I finally took the cover off and discovered the electrician saved himself, what? $2 and used a ...
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Generator GFCI Outlet Tripping

Recently I purchased this 4375 watt generator from HF: https://www.harborfreight.com/merchandising-promotions/brands/predator/predator-generators/4375-watt-gas-powered-portable-generator-epa-iii-63962....
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Does this GFCI need a sticker for code-compliance?

I replaced a 2-prong outlet with a GFCI, wired as shown (connected ground wire coming into the box to the metal box as well as the ground screw of the GFCI, black wire to brass terminal & white to ...
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Ground Jump Cable attached to White on GFCI Receptacle?

Just bought a home, and going through minor electrical issues. The guest bathroom GFCI wasn't working. According to the prev. owner's labels in the fuse box, there is a single 20A breaker that ...
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GFCI with 12/3 line and 12/2 load

I have an outlet near a kitchen sink that, as part of a reno, would like to convert to GFCI, and tap into to power a dishwasher. The existing box has a 12/3 line coming in, and I fished and added 12/2 ...
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Steam Shower Requirements

I am installing a steam shower in Ontario, Canada. The unit is "TMG Industrial SR-915". The electrical specifications are listed as 220v/2.8 KW with gfci. My questions: the chord coming from ...
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Adding a 110v circuit off 220v spa wiring

I have a hot tub installed with 4-wire 50 amp service, with the GFCI 2-pole breaker at the main panel, and a simple non-fused pull disconnect switch subpanel near the hot tub. I want to split off a ...
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Microwave trips the AFCI almost every time it is used

Our new microwave trips the AFCI almost every time we use it. Electrician says it is drawing too much power and we should return it. Samsung over range Microwave 120 volts 1.5 kw AFGI 20 amp
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Is it safe to replace a 15 amp GFCI outlet with a 20 amp GFCI outlet?

I have a 15 amp GFCI outlet on a circuit that has a 20 amp breaker in the fuse panel. Is it safe to replace the 15 amp GFCI outlet with a 20 amp GFCI outlet?
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Replace GFCI outlet or the brand new washing machine?

I just bought a brand new washing machine and its tripping the (15 amp) GFCI circuit breaker. The main breaker in the fuse panel is 20 amps and is not tripping. The GFCI trips every time the washer ...
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How can I wire this switched GFCI combo outlet with two neutrals and two hot wires?

I’d like to wire a switched GFCI combo such that the switch controls the GFCI plug. I found this diagram for doing so: This looks easy enough. However, after unscrewing the current outlet, I’m seeing ...
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Can I safely deal with an open ground receptacle by replacing it with a GFCI?

I have found three receptacles in my home for which a three-light receptacle tester indicates open ground. Can I safely resolve this issue by replacing these receptacles with GFCI receptacles? Would ...
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Help wiring a GFCI outlet with multiple wires in the box

I was replacing/upgrading some electrical outlets in my house to GFCI. I did two of them, the third one is in the garage. The box has an outlet and a poll switch, I went to replace it but the outlet ...
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MWBC for split kitchen receptacle

When installing a split receptacle in a kitchen, where the top and bottom are each their own circuit, is there any way you can use an MWBC, or is your only option to run two normal circuits with two ...
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GFCI: both load and line have voltage

How should I wire my GFCI? There are 5 wires from the box, two blacks, two whites and a copper wire. I used a multi-meter to test the blacks they both have voltage of 117v (-ish). One white has 30v (...
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Can the neutral for a spa circuit be tied to either the neutral on a return leg or ground?

I am in the process of adding a pool heater. 240V (60A breaker/40A max load/3 wire) I also want to put this in a GFI. I have a SquareD/homeline box, which does not offer 60A GFCI breakers. So, I ...
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How do you (safely) test a GFCI circuit breaker from the outlet when the circuit has no ground?

I know I can press the "test" button on the breaker in the panel. But I want to double-check that there isn't some strange wiring situation hidden in the walls that could prevent the GFCI ...
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Ground and neutral bus considerations when wiring a gfci breaker

Hello all, I am adding a gfci breaker to my main breaker panel. By the looks of my panel I think the ground bus and neutral bus are bonded but not certain of this. It looks like my right bus bar is ...
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AFCI / GFCI Circuit failure

I've been unable to diagnose why a circuit in my house no longer works. It's a 20 amp circuit that feeds 4 outlets in my kitchen area, and it has both a GFCI(link) and AFCI. The entire house is ...
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Should my receptacle tester be able to trip a GFCI breaker in the panel box?

I have a receptacle tester with a button to test GFCI. It works properly in tripping the GFCI if the outlet itself is a GFCI outlet. However when I test it on circuits which have a GFCI breaker ...
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Why are USA/Canada using individual GFCI circuit breakers?

Where I come from, there are no GFCI sockets. Instead there is one circuit breaker on the main board that shuts down the entire house electricity in case the electric current returning to the main ...
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77 views

How do I know if my gfci is self-testing?

Are self-testing gfci mandatory since 2015? (My house was built in 2015). Is there a way to tell if my gfci are self-testing? (Without uninstalling preferably as if I take it out of the wall, I might ...
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Are GFCIs now required in all unfinished portion of a house?

I was really surprised that a city inspection did not pass based on regular outlets in an unfinished room in the basement. They are correctly jacketed and all of that stuff. They are simply ...
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Fridge tripping GFCI Outlet

I just got a new fridge and put the old one in the garage. It's connected to a GFCI outlet which it's tripping intermittently. It's not the breaker that's tripping, it's the outlet itself. The fridge ...
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Running new fridge line, get regular breakers, AFCI, combo with GFCI, GFCI outlet, etc?

My fridge (2017 GE upper double doors 1500 W, 145 W icemaker) is now on part of a four-outlet circuit with a microwave. An electrician is going to run a new circuit to the fridge only. He said I can ...
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100 views

GFCI Did Not Trip - Outdoor Extension Cord Fell in Mud

Outdoor GFCI with HD extension cord feeding Mosquito Magnet bug light (total load about 20W) fell to ground and was covered by water during storm. Current proceeded to travel through side of cord ...
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How should I connect a GCFI outlet and switches to the wires in my bathroom?

In my son's newly purchased house bath there is a box with 2 switches and an outlet. I am replacing the switches and changing the outlet to a GFCI. There is power coming in on a 12/3 cable, 12/2 cable ...
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77 views

How to test that GFCI works?

I hired an electrician to install a GFCI outlet outdoors. I need this to power some pumps in an aquaponics system, so I need to guarantee it works, so kids don't get hurt while playing in the water. ...
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Half Hot Outlet Tripping when Light is connected

I am hoping someone might be able to share some insight as to what I can next do to troubleshoot this problem. In my room I have 3 outlets, the last one in the in circuit is a half-hot outlet ...
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Outlets and lighting on covered patio - 240V to 120V

I have installed a covered patio and would like to add lights and a couple of outlets. The current set up is a breaker out there that was set up for a potential AC hookup; it is fed by a 10gauge wire ...
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60 views

Razor Socket to GFCI Conversion Kit.. Load terminals vs Pigtail

Hi, I'm trying to convert this 1973 "Razor Only" socket to GFCI. I have the full conversion kit and I'm wondering the best way to approach wiring it. I've seen videos where electricians do ...
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Are dual-function AFCI/GFCI breakers less effective than single-purpose GFCI breakers?

I have a house with old wires (cloth) that lack ground. I've been advised that we can install GFCI breakers on those circuits to help protect against the lack of ground. But since the wires are cloth, ...
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Why would a GFCI fail in one outlet, but not another?

We have multiple GFCI cords, such as this one (the GFCI is not an outlet). When plugged into a certain outlet, they all consistently trip with any load higher than a few watts. When plugged into any ...
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Does a GFCI also protect against arc faults?

I have an old house, the electrical cabling only has two wires with no ground wire. When I bought it years ago, I had an electrician in to look at it, and they put GFCI blank-face receptacles on every ...
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240 V AFCI substituting two 120 V not AFCI breakers

Could 240 V - 20 A AFCI breaker be used to supply power to two 120 V - 20 A circuits requiring AFCI protection? Recently wired to two separated 120 V 20 A non AFCI breakers but with common neutral?
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Diagnosing connected circuits; dangerous?

We fairly recently bought a c. 1907 house with a mess of wiring, some probably dating back to the 1940s. (In Canada, so 120 V.) Most of the circuits have no ground wire. I was trying to install a GFCI ...
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How do I choose GFI plug end replacement?

Would it be safe to replace a 16Amp GFI plug end (hair dryer) with a 15 Amp GFI plug end?
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GFCI tester shows fault, but everything is working

I have a GFCI outlet and when the GFCI tester is plugged in, that shows this error code when it is tripped: greater than 30VAC, and open ground, open neutral. I’ve replaced the GFCI, but I still get ...
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81 views

Turn 6-wire outlet into 2 GFCI outlets

This question is not for the faint of heart. I want to know if I can turn an old outlet on a multi-wire branch circuit (MWBC) into 1 or 2 GFCI outlets. My house was built in 1970 and has a MWBC in the ...
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Turning on GFCI breaker on subpanel trips main breaker

I have a subpanel feeding off a 50 amp breaker. The subpanel contains a GFCI 50 amp breaker which is connected to a new 32amp spa heater. When I flip the GFCI breaker on for the heater, it immediately ...
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642 views

Do GFCI outlets require more than standard box volume?

I purchased 2 Carlin 2-gang old work box with max cubic in fill limit of 25. These are being installed in a garage so each receptacle is gfci. I have wired them in parallel so there is a pigtail in ...
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New circuit and towel warmers for two bathrooms

I am planning to add a new dedicated circuit (15A) for two hard wired towel warmers in two bathrooms, each towel warmer is 150w. See image for my thoughts. For the first bathroom: run the new circuit ...
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GFCI Protected Outlet Trips with GFCI Outlet Tester, but the outlet lost power

I plugged my GFCI Outlet Tester into a GFCI protected Outlet. Pressing the test button, the outlet was tripped fine. But no matter how I pressed the reset button on the GFCI receptacle. The outlet ...
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Are GFCI outlets allowed on new circuit installations?

A comment thread on GFCI outlet on 2-wire ungrounded question led to a discussion of whether GFCI is better/worse or even permitted at point-of-use (GFCI/receptacle) instead of GFCI/breakers in the ...
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GFCI outlet on 2-wire ungrounded question

I have some 2-wire ungrounded outlets in a room that I want to put a bunch of electronics and computer. I know I can replace this with a GFCI outlet and label with "No equipment ground". ...
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96 views

Whole House GFCI Trips In Cold Weather

Note that this is in Thailand where there are no rules. My home has a main breaker which includes a GFCI. Recently the breaker has started to trip when it gets cold. (This is Thailand. Cold means ...
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53 views

GFCI blinks red once

I installed a new GFCI outlet and it seems to work; the light is generally a solid green. however it does blink red once every 30 to 90 seconds. I found plenty of documentation around a solid red ...
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Are you supposed to leave the pigtail lead on an GCFI / AFCI breaker curled up?

Here's an example of the kind of breaker I'm thinking of: They come with the lead neatly curled up. Is this curl meant to be maintained for some reason once the breaker in installed? Or is it just a ...
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83 views

Ground fault causing main breaker to trip [closed]

If there was a ground fault causing severe electric shock, and no gfci protection in place, could it ever reach and trip the main breaker, or would it always trip a regular breaker for that circuit ...

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