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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1k views

two circuits on a single pole GFCI breaker?

I think I may have found an instance of "hill-billy" wiring in my circuit box. I have a 15A GFCI breaker. Strangely, it is hooked up to the up stairs bathroom AND the outdoor outlets. Recently it ...
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541 views

How to Use GFCI Square Cover?

I have a 4" square box which I'm going to put a GFCI outlet in. I got one of the raised covers with a rectangular cutout for GFCIs. However, the outlet itself doesn't sit flush with the cover. When ...
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1answer
5k views

New Eaton AFCI/GFCI breaker signals (5 blinks) ground fault, but doesn't trip. How to track it down?

Where to start? *We bought a new house on a day's notice, and now I have to sell this 1885 Victorian. I'd like to minimize the scope of a home inspector's report. *The house is mostly the original 2-...
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1answer
400 views

How to test two-prong retrofit outlets downstream of GFCI

Given old two-prong (ungrounded) wiring where a GFCI is installed nearest the panel and other two-prong outlets are attached to the load side of that GFCI, how does one confirm that all the outlets ...
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510 views

15A Ground Fault Breaker Keeps tripping

I installed (a few years ago) an extra light in our closet that is just run from a jumper to the existing light. I can have that light on as long as I want, but the moment I turn on my TV or computer ...
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3answers
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Replace and old outlet with GFCI where the GFCI won't fit in the existing box

My house was built in 1958. City inspector asked me to replace outlet in bathroom and kitchen with a GFCI, and says he will check if the wiring is correct or not. When I connect the GFCI, there are ...
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1answer
96 views

All electrical outlets are working well except one

This house has a GFCI "Downstream?" circuit. I see two outlets, each in the showerroom, labeled "GFCI Protected" but I do not see any outlet with a reset button or any red light anywhere in the house....
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178 views

GFCI turns off with bath light

I have a GFCI outlet that has green light when the bathroom light is on and a red light when the bathroom light is turned off. The GFCI works perfectly and does not trip when the light is on. When the ...
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Why do I still read voltage on outlet when I turn off breaker? [duplicate]

I have an GFCI outlet box wired with yellow coated wire, which I believe goes to a dedicated circuit breaker. When I turn off the breaker to the box, I still read residual voltage. Is this induced "...
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108 views

Maytag MLG2000AWW sporadically trips the GFCI when setting the dryer timer.

When rotating the dryer timer knob, the GFCI outlet trips. It usually happens when the pointer is near the Presscare area of the knob. It will never trip ar any other time. I checked the GFCI with a ...
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59 views

FMC run for GFCI receptacle?

I have a water heater room 5x8 that needs a GFCI receptacle added to the ceiling for a hot water recirculating pump. The heater is large and obviously hard plumbed in so cannot be moved and rigid ...
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867 views

Troubleshooting a 120v load off a GFCI outlet

I have a 120v load im trying to troubleshoot, i replaced the GFCI located in garage as it's the first termination after the breaker and i thought it was the issue. Before and after GFCI the issue was ...
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1answer
219 views

How to separate the outlets in garage from other outlets in the house

The wiring for one of the 15A circuits for my house includes 7 outlets in the family room, several recessed lights, a 3-speed hanging fan, a chandelier in dining room and 3 outlets in the garage. ...
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425 views

Kitchen wiring issue

We recently bought a 1978 home in Florida. The kitchen wiring leaves me scratching my head. I think I have solved 2 of 3 major problems, but need advice on the last. (see pic) 4 different 20A ...
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Will GFCI curcuit breaker operate properly with neutral pigtail wire not connected?

I recently installed a GFCI breaker due to a recessed floor outlet wiring burning out due flooding from storms. When the electrician connected the GFCI's white pigtail wire to the neutral block the ...
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2answers
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GFCI Circuit neutral sharing

I'm running two 120 volt circuits to GFCI's with three wires each (Hot, Neutral, Ground) and then extending the load terminals out to a remote location. I've run four wires through conduit. Is it ...
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1answer
2k views

GFCI outlet keeps tripping

We have a GFCI outlet in our kitchen that has been tripping pretty regularly (4+ times a day). We first noticed it when our fridge would go out. (Breaker Box Circuit "A") We assumed the problem was ...
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1answer
65 views

GFCI trips when lights go on

I have this setup (see attached photo, and sorry for my poor drawing skills) and whenever I screw in the light bulb (or flip the switch with the light bulb in), the GFCI trips. Without the bulbs, no ...
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1answer
351 views

Is it okay to leave circuit on when a bad GFI has tripped?

I have a very old GFI outlet in the kitchen that tripped. It apparently is connected to two other outlets, so all three have no power. Nothing is plugged into them now. I cannot reset the GFI, both ...
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3answers
787 views

Why does my food truck trip GFCI outlets only when a grounded cord is used?

I have a food truck with a 60 amp service installed. When I plug into a GFCI with an ungrounded cord it works fine. But when I plug into GFCI with grounded plug it trips immediately. Please help.
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209 views

Wiring Multiple Outlets, Switches Lights

I'm adding in a few switches and outlets to a garage and I'm wondering how to wire them in. One outlet I want to be switched. Both outlets are GFCI as they are in a garage. I'm using 14/2 wire. I've ...
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820 views

Bad GFCI or did I wire it wrong?

I just installed a Hubbel GFCI socket and when I turned the circuit breaker back on the GFCI green and red led lights went on and the reset button would not stay in. The ground wires are pigtailed ...
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If I install a GFCI on the first outlet in a circuit will the other receptacles on that breaker circuit have GFI protection?

I have three electrical outlets in my garage which appear to be connected to one circuit breaker. I am assuming the outlet closest to to the panel is first in the three receptacle circuit. How ...
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1answer
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@ Harper Please Clarify previous instructions re GFCI outlet

Please help me better understanding the advice you gave yesterday re installing the GFCI in my garage that will supply power to outdoor post lantern. The three ground wires are pigtailed and ...
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1answer
1k views

Multi-Wire Branched Circuit and GFCI

Forgive me if this a repeat, but I'd like to be sure I know exactly what's going on. I am installing 2 bathroom fan/light fixtures directly over the tub in 2 adjacent bathrooms on the same circuit. ...
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1answer
123 views

Replacing receptacle with GFCI outlet which will be tapped for outdoor pole lantern

I am installing an electric outdoor pole lantern which will be fed by an underground UF cable in conduit buried 24" I would like to tap into a new GFCI outlet which will will be replacing a regular ...
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5answers
183 views

Is using a non-GFCI circuit more risky now than before GFCI entered the electrical code? [closed]

When using a non-GFCI grounded receptacle with a modern device (e.g. manufactured date 21st century) are the risks the same as they were in pre-GFCI era? I can imagine some situations in which risk ...
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1answer
1k views

New GFCI outlet won't reset after tripping when load wires are connected

I'm attempting to replace the outlets above my kitchen counters after doing some remodeling. The old outlets were likely from the 1960's and I'm replacing them with 15 amp GFCI outlets. We have 3 ...
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1k views

Fried GFCI, how urgent is replacement?

Several days ago, GFCI receptacle in kitchen blew while Windex'ing ants, because they were coming out of the prong holes. My middle name is not Darwin, needless to say. 20-40 second period of rapid ...
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2answers
221 views

Failing GFI outlets

I have a newly built and wired shop with 3 power circuits for outlets. Each circuit (call them A, B, C) is protected with a GFI at the first outlet and all subsequent outlets on that circuit is on the ...
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3answers
45k views

New GFCI outlet; green light is on but no power

I installed a new GFCI outlet with an one that was working. I wired it exactly as the older one and it isnt working. The green light is on but no power? I reversed the wires and no light. I replaced ...
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3k views

GFCI Outlet Trips with Receptacle TEST Button, but not with GFCI Outlet Tester Tool

I recently bought a house and am testing the GFCI outlets throughout the home to confirm they are working properly. All of the outlets work when the receptacle TEST button is pressed. However I also ...
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2answers
771 views

Class C (20mA trip rating) GFCI receptacle/breaker?

I have an electric radiant heat system under tile in a basement bathroom. Nuheat thermostat with built-in GFCI, dedicated 20 amp circuit. Ever since I purchased the home the system trips the GFCI ...
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1answer
28 views

Cover required for octaginal box [closed]

I need to purchase the conversion cover discussed when an octagonal box is used to hold a duplex receptacle. Article stated it was new but could be found online. Please supply e-mail address. Thanks.
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1answer
176 views

Power to loafing shed

I need to run power to my loafing shed for lights, fans and blowers for show livestock. The blowers pull almost 20 amps each so here is my plan. Underground service using 4 awg thwn in conduit. 130 ...
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1answer
157 views

How do I replace switch/outlet to GFCI/switch combination?

I am having a problem switching a switch/outlet combo to a GFCI/switch combo. The GFCI switch provides power to a bathroom fan and light that are not protected. I have wired the GFCI/switch as shown ...
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3answers
717 views

Replacing GFCI outlet inside 2-gang box

I am trying to replace some outlets in my garage and I ran into some confusing wiring. There are 2 double gang boxes on the wall. Both are hooked up to the same breaker in the breaker box. The ...
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2answers
347 views

Is there any benefit to tripping a GFCI receptacle when it's not in use?

I have a few outdoor GFCI receptacles. (They are on different circuits.) I probably use these receptacles for 2 hours in a given year. In other words, I rarely use these receptacles. Keep in mind ...
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2answers
69 views

Odd Problem Testing Series Outlets

I recently purchased a new outlet tester and was randomly going around the house happy that all outlets were showing GREEN (correct). Then I came to one of the outlets in my kitchen. I have three ...
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3answers
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My GFCI trips when fluorescent light turn off - light will turn back on anyway

This has been going on for awhile, but it is intermittent - about every 3 - 8 times the fluorescent light in a closet off the bathroom are turned off, one of the two GFCI outlets in the bathroom will ...
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1answer
1k views

AFCI/GFCI breaker trips immediately with “extra” ground

I recently installed some AFCI/GFCI circuit breakers. One of them kept tripping immediately, so I tracked down the problem to where a neutral and ground were joined. (There was just the one neutral in ...
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1answer
2k views

What is the life expectancy of a GFCI receptacle? [closed]

Assume that the GFCI receptacle is not subject to unusually high levels of tripping. When I say "the life expectancy of a GFCI receptacle", I more specifically mean, "the life expectancy of the GFCI ...
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2answers
2k views

What is this metal bar in my 1950s electrical box?

I recently bought a house and am in the process of replacing all the ungrounded outlets with GFCI outlets. I was able to install one correctly in a bedroom, but there are two others that I wasn't able ...
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2answers
2k views

Connecting a 4 wire 240+120 volt hot tub to a 3 wire 240 volt circuit

I am hooking up a hot tub, which is 4 wire 240+120 volt, using an old ac line which is 3 wire 240 volt and adding a GFCI breaker as required by the state. How do I wire that together?
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68 views

Can a GFI receptacle die coincidentally at the same time as wall drilling?

A little background: I just moved into a rental house and a week later the property owner had a new wall-mounted AC/heating unit that required a bit of drilling through the wall installed. I opened ...
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2answers
2k views

Feed-through vs. non-feed-through GFCI for kitchen backsplash?

I'm planning to replace a decades-old receptacle / switch combo (switch is used for garbage disposal) and switch (used for wall-mounted light above kitchen sink). Here's the current setup: For the ...
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1answer
38 views

If you wire a separate circuit does that do the same job as a GFCI?

does a separate circuit for a single outlet do the same job as a GFCI?
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1answer
496 views

outdoor GFCI tripping at the breaker box and not the receptacle?

Is it normal for a GFCI, under load, to break at the electrical box and not the receptacle that caused the overload? Typically, I have only seen the receptacle trip and not the entire breaker. I am ...
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1answer
148 views

Kitchen outlet/receptacle issue

On the outlet of my dishwasher/disposal one of the receptacles is open hot. (I tested with a gfci tester). The disposal works in this receptacle. When I plug the disposal into the other receptacle the ...
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2answers
505 views

How do I add an outdoor GFCI outlet to an existing indoor 2 wire outlet with no ground?

Indoor outlet does not have a ground wire but the outdoor outlet does.