Ground fault circuit interrupter, also referred to GFCI, GFI, or a residual-current device. This devices detects a leak in current, or an imbalance between the current on the hot and neutral wires. This is used to prevent electrical shock.

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Is my RCD Breaker faulty?

Every 2 weeks my main RCD trips and it wont reset. After an hour it will allow me to reset it and its fine for 2 weeks. The main RCD has a short spur to another mini RCD board that was installed 10 ...
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26 views

GFCI outlet doesn't work after reconnecting

I reconnected my GFCI outlet but now it doesn't output electricity even though the current coming in tests positive (with a pen like current testing device). I also pressed the reset button, to no ...
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38 views

GFCI pops when the heater comes on

Just wired a new heater like this and the GFCI pops when the heater comes on. Can someone explain to me why this is happening?
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43 views

Wiring diagram/configuration 8 outlets with 1 GFCI protector

Installing new circuit 20 amp breaker with 20 amp outlets with 1 GFCI protector. Should GFCI be the fist outlet from breaker panel? How to wire this project.
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27 views

GFCI issue with grounded protected receptacle

Trying to wire GFCI and a protected receptacle into the same box for 4 outlet set up. When I wire protected receptacle to LOAD side and connect it to the ground, the GFCI test fails. If I ...
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16 views

1 outlet / 2 switches: want to replace old outlet with GFCI

(Similar to How do I install a GFCI receptacle with two hot wires and common neutral? but hopefully different enough to warrant my question.) In our bathroom we have 1 outlet and two switches in the ...
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46 views

Why does my GFCI trip randomly?

I have a GFCI in the kitchen has started tripping all of a sudden. It may trip several times a day. I have the same things plugged in that I have had for months. Nothing has changed with the usage so ...
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51 views

What is the *interrupting rating* of a GFCI receptacle?

Say, we have a UL943 compliant 15A GFCI receptacle on a garden-variety 15A grounded branch circuit. Some nitwit comes along and wirenuts the receptacle's load-side hot to the branch circuit ground, ...
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645 views

Is a GFCI receptacle device a circuit breaker? [duplicate]

I have been told that a GFCI receptacle is a "circuit breaker" in the sense that it will trip under overload. Everything I know, have been told, and have read from experts to manufacturers says this ...
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25 views

Do newer GFCI receptacles still trip due to inductive load from motors?

I am rewiring a kitchen and faced with a dilemma of having the garbage disposal on a GFCI circuit. Will it trip when turned off like the older GFCI's?
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69 views

GFCI Outlet wired to non GFCI. Can I switch?

I have a GFCI outlet that is wired to another non GfCI outlet. So when either has a problem, they will trip off. My question. Can I reverse these outlets? Let's say the GFCI outlet is on my left ...
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39 views

Is it acceptable to decrease the HP rating of a blank-face GFCI?

I have a 20 amp Blank Face GFCI rated at 1.5HP that is protecting two outdoor 15 amp receptacles. Could I use a 1hp blank face GFCI instead? Also, why wouldn't the electrician used a regular gfci ...
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58 views

GFCI breaker trips when switched on

I'm buying a house. It's an old house. I had to put in a GFCI breaker for the bathroom. It trips as soon as I switch it on. If I disconnect the neutral it doesn't trip. It is three wire coming ...
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5answers
105 views

GFCI installation in bathroom switch box doesn't work as expected

My bathroom wall switch controls the old light above the old medicine cabinet but it only has 1 cable with a black and a white wire. I took off the old switch and put the black wire on the hot side of ...
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2answers
54 views

How can I detect the total ground fault leakage current in my home?

In Europe, houses often have all breakers chained beneath one or more RCDs (their word for GFCI). I would not want the nuisance of multiple circuits shutting off at once, so I'm glad in the US we ...
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157 views

Does a GFCI receptacle provide overcurrent protection?

Does a GFCI receptacle provide over-current protection? (note that I'm not referring to GFCI circuit breakers as may be found in a service panel, nor to specialty devices such as an inline plug-in ...
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27 views

20/30 GFCI spa disconnect

Instead of spending 400 on a spa disconnect with a 2 pole 20 amp gfci and a 2 pole 30 amp gfci breaker. Can I take the 50-60 amp gfci breaker from the spa disco, put that in the main panel and use ...
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57 views

New GFCI in garage is tripping when driveway lights are turned on

So I had GFCI outlets put into the garage to use for Christmas lights outside. After installing, the christmas lights all work great but when I flip the switch in the foyer for the lights at the end ...
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50 views

Open Hot on GFCI outlet

I have an outdoor GFCI outlet that was running our Christmas lights. We was just struck with a storm that we received 3.6 in of rain in a 6 hour period. Now the reset will not work, green light is not ...
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39 views

Is this GFCI shot?

Last year I installed an old GFCI outlet in a switch box. As verified with a multimeter, the white wire is neutral, and the black wire is hot. Note that this picture was taken after I took off the ...
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33 views

Why do I get an open ground warning after a GFCI Test?

I just finished a home wiring project which has a set of outlets protected by a GFCI outlet. I was testing them with an outlet tester and noticed something odd: Immediately after a GFCI test, my ...
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71 views

Hot wire splits into two neutrals that take different routes back to panel; is this legit?

I discovered this in the course of replacing an old ungrounded receptacle with a GFCI. I connected a run of lights controlled by three-way switches (two switches) to the load side. Afterwards, as soon ...
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33 views

Bathroom Electrical question GFI

Can I run a 12 2 wire off of a 20 amp breaker to a splitter box, then from the splitter box run one 12 2 wire to a light switch, then to 5 can lights? Then one more wire from the splitter box to ...
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68 views

Why does my greatroom have a GFI breaker on the circuit?

We moved into a condo in 2012 and have had issues on one of the circuits. The circuit serves the outlets in our great room and sun room. Initially, we would trip the breaker when using the vacuum ...
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39 views

What breaker size for box containing two GFCI circuits?

What should the main panel breaker size be to control a 60amp GFCI for a hot tub and a 15amp GFCI outlet. The gfci's are mounted in a box that will be wired to the main panel.
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48 views

GFCI equipped machines into GFCI receptacle

I have a personal bowling ball cleaning machine that states "plug to a non-GFCI outlet" which means it has built-in GFCI however, in the area I am living, all receptacles must be GFCI protected and ...
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84 views

Hot Tub Disconnect Location

I have a concrete slab which can fit a hot tub approximately at a distance of 8 feet from the main breaker panel (located outside on my porch). I assume that I will still need a separate disconnect ...
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94 views

Can I protect a dimmer switch circuit with a GFCI outlet?

I'm installing some line-level-dimmable LED undercabinet lighting in my kitchen. I'd like to protect it with one of the existing GFCI outlets in the area. My sequence would be GFCI > dimmer switch > ...
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39 views

GFCI won't catch

I have a GFCI in my garage that was working, but now won't catch at all. I pulled the downstream circuit by disconnecting the load wires and it still won't reset. I have 120 to the GFCI itself. I ...
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42 views

Switches and outlets not working after short to ground

I was replacing a outdoor GFI when putting back in box the ground touched the lower unused terminal and fried the ground, shorted GFI out. Now I have some switches in the house that do not work mainly ...
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26 views

There is no GFCI outlet in my basement, and circuit breaker reset won't work

Half of our basement outlets went out, and flipping the switch at the circuit breaker (multiple times) did not work. The affected rooms are fully underground and the likelihood of moisture is high. ...
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60 views

Should a switch near a sink be on the load side of a GFCI outlet?

If a switched GFCI protected outlet is required, and the switch will be near a sink (above a counter-top), should the switching be done the load side of the GFCI outlet? (e.g. for a garbage disposal) ...
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42 views

Is it advisable to run a snow blower on a non-GFCI receptacle?

Is it advisable to run a snow blower on a non-GFCI receptacle? After all, while using the machine I will always be wearing mittens and boots. Would these not provide sufficient safety?
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254 views

Why is the coiled white wire on a GFCI circuit breaker smaller than the branch circuit neutral?

I just recently installed a 50A two pole GFCI circuit breaker that was part of a 240VAC spa panel. For 50A I was using 6 AWG wires. When connecting up this type breaker you connect the two poles of ...
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2answers
83 views

Switched outlet keeps tripping breaker

Re-wiring the garage and running into an issue with a switched outlet. The outlet is in the middle of the run (after a GFCI and before a single ceiling outlet for the door opener). I've split the ...
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168 views

Do I need two separate duplex receptacles for dishwasher (GFCI) and garbage disposal?

I have seen answers to similar questions but not sure they address my situation. I recently "installed" 2 separate 20A circuit runs for a dishwasher and a garbage disposal respectively (overkill ...
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54 views

Finding a phantom GCFI

We have a bathroom whose GFCI tripped one day. Only after it was tripped did we realize we have no idea where the reset button is. It's not on the breaker, it's not on the wall outlet, and there's ...
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175 views

GFCI install in old house

My house was built in the 1940s and only part of the electrical has been upgraded. I am trying to replace an old outlet on my screened in porch with a weather resistant GFCI outlet but cannot get it ...
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137 views

Taking power from double light switch to GFCI outlet

I am redoing some wiring in my bathroom. I have a vanity light on a single switch, a vent fan and ceiling light combo on a double switch and a GFCI outlet that are wired together in that order. It ...
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81 views

Is this a faulty GFCI receptacle?

Need some advice on an electrical issue I'm having in my new condo. My bathroom has a GFCI receptacle (similar to this one). I noticed one morning that the LED indicator was out, so I figured ...
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125 views

Understanding GFCI protection

According to the diagram below the two (non-GFCI) downstream receptacles are said to be GFCI protected. Does this mean that if someone were to accidentally create a ground fault at either of the two ...
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110 views

Protecting multiple outlets with one GFCI; is it possible with this wiring scheme?

I have a family-room circuit with 5 outlets and a one-year-old who thinks it's funny to try to stick things in them. So I thought it would be a good idea to add GFCI protection (and tamper ...
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224 views

Does a garbage disposal and/or dishwasher need to be on a GFCI?

Part of me always cringes when I turn on the garbage disposal with a wet hand, which got me thinking... Does this thing need to be on a GFCI? And on that same thought, does the dishwasher need to be ...
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68 views

Would my fridge be causing the 20amp gfci to trip

I recently bought a house and when I went to plug the fridge in it worked fine however the next morning. I wen to check on it and found that the circuit had been popped as well the ice machine was on ...
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34 views

Need to Convert GCFI to Non GFCI outlets on generator

I have a gas powered electric start dewalt 7000 watt 240AMp generator with 4 GFCI outlets, the machine I need to run off the generator trips the breakers. Even when i run it off the factory provided ...
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478 views

How to wire a 240V disconnect panel for spa that does not require neutral?

I'm wiring a 240V/60A hot tub which requires 3 conductors; one of these conductors is ground. No neutral is run to the tub. That said, I have a red, black, and green running to the hot tub from the ...
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19 views

GFI - Five Wires Plus Ground

Installing GFI. Five wires plus Ground in box. Two black, one white, two beige, one bare. One romex has a black and white. Black is hot. Another romex has one beige which is hot (from a red, black, ...
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41 views

what could cause my gfci to randomly trip?

I'm in the process of finishing my basement, and am almost done with the electrical rough-in. The whole thing is open studs at this time, so any sort of reconfiguration is easily possible. I have a ...
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55 views

GFCI Tripping after 15 years

I have a 15 year old house, with a GFI in the basement, yesterday when I came home I found that it had tripped. I took everything off of the circuit and reset it. Within a couple of minutes it tripped ...
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67 views

Breaker Tripping Mystery

I have a mystery regarding trip switches. The 2 switches that I isolate when the problem occurs the 2 breakers does not trip individually, The main breaker trips all the time which is on a different ...