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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GFCI is popping for no reason

This morning we woke up to the bathroom lights not working. Investigation reveals that the culprit is the GFCI that serves two bathrooms and the laundry room. It still pops in 10-15 seconds with no ...
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64 views

It it safe to have a 15 amp GFCI outlet on a 50 amp GFCI breaker?

My friend just got rid of her hot tub. The person that took it put an outlet where the tub was. He put in a 15 amp GFCI at the outlet but left the 50 amp GFCI breaker in the panel box. Is this ...
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68 views

How to determine why an AFIC or GFIC breaker tripped?

GFCI and AFCI breakers trip under specific conditions, unbalanced current, and a detected arc, respectively. However, they also trip under ordinary overcurrent conditions in the same way that ordinary ...
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34 views

GFCI receptacle and 3-way switches

I have replaced a bathroom outlet with a GFCI. The first outlet from the circuit breaker is the bathroom outlet. The circuit then goes to a switched light outdoors, a switched light to a hallway, ...
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18 views

GFCI receptacle

I just installed a GFCI outlet in my bathroom thats directly connected to the light fixture switch. when i turn power back on the light fixture isn't getting power and the outlet wont test. But The ...
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1answer
34 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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787 views

How do I wire this switch/outlet combo?

This 5 minute task has kept me busy for an hour. Old switch/outlet combo melted. Replacing with gfci combo. Red/White pair is the line. Orange/White pair is the load to the light. Strangely, ...
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1answer
41 views

Wiring switched-controlled GFCI outlets outdoors

I have a dedicated outdoor 20 amp circuit (GFCI breaker) in my yard that was for a pool we got rid of. 2-gang box w/weatherproof cover. I want to install a GFCI outlet that is controlled by a ...
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2answers
67 views

GFCI outlets fail repeatedly in new home

I purchased new home which has never been lived in and I have had to replace three different ground fault outlets. They just quit working. Now I have one in bathroom, which had been previously ...
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3answers
251 views

What reasons are there to rewire an ungrounded circuit instead of adding GFCI protection?

The NEC allows replacing non-grounding-type (2-prong) receptacles with grounding-type (3-prong) receptacles by adding GFCI protection at the breaker or first outlet. What reasons might there be for ...
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3answers
109 views

Why are ungrounded GFCIs required to be labeled?

I discovered in my new house that someone had incorrectly connected grounded outlets (without any ground connected) to the knob and tube wiring. I have read that the outlets can be made safe by ...
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51 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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849 views

GFCI combination switch and outlet to fully switched protected outlet

Before a single screw comes out of the wall, I need to be sure I understand this fully, and rather than type out everything, I made a diagram based on what I was able to dig up on forums. This is for ...
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7answers
103k views

How do I install a GFCI receptacle with two hot wires and common neutral?

In my kitchen, I want to replace a regular 120V receptacle with a GFCI-protected receptacle. The instructions describe what to do with a regular 2-wire + ground feed, with and without daisy chaining ...
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1answer
42 views

How to determine if a circuit breaker has GFCI

I recently discovered none of the grounds in the three-prong outlets in my house are connected to anything. AFAICT the only way this is allowed without GFCI outlets is to have GFCI circuit breakers ...
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4answers
31k views

Why is GFCI tripping on refrigerator circuit?

My refrigerator is tripping the GFCI on the socket into which it is plugged. Searching about this topic seems to indicate that this is a reasonably common complaint. However, I can't find any ...
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5answers
25k views

Why do I have a green light on my GFCI but the outlet will not come on?

While cleaning, my niece sprayed my GFCI outlet causing it to go out. I attempted to reset it but came up with negative results. I purchased another one, hooked it together (green light came on ...
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1answer
136 views

Is there a safe alternative to electrical grounding for computers in Argentina?

I came across this APC product page for Microsol Isolator Modules, which purportedly provide "safe power in places with poor or nonexistent grounding." The unit is meant for Brazil, so it won't work ...
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1answer
27 views

Michigan Kitchen Sink Electrical Requirements

Wondering what the NEC code requirements are for Residential Kitchen outlets. I was told that the two wall outlets on either side of the kitchen sink have to be on separate circuits. The kitchen in my ...
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3answers
14k views

Are non-GFCI outlets that are downstream of a GFCI outlet ground fault protected if they are fed from the GFCI outlet's load side?

Are non-GFCI outlets that are downstream of a GFCI outlet ground fault protected if they are fed from the GFCI outlet's load side? If those non-GFCI downstream outlets were not fed from the GFCI ...
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2answers
51 views

GFI false trips, but everything checks out. (????)

Any load trips a new GFCI breaker: Conditions: Brand new construction. New 75' 4wire feed to new subpanel from a long working and reliable main subpanel. One GFCI breaker feeding 4 outlets from new ...
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1answer
27 views

My washer keeps tripping my gfci

I recently rewired an old house. The laundry room is on its own circuit and the washer plugs directly into the gfci outlet. Everything seemed to be working great. The lights works and the outlets ...
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2answers
43 views

Existing GFCI outlet wiring to a new switch

I want to relocate a GFCI outlet in my kitchen that is currently below my top cabinets to above the cabinets so I can plug in an LED rope light and illuminate above the cabinets. With that being said ...
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1answer
73 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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2answers
40 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

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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1answer
64 views

Safe location rules for bathroom sink recepticle and light switch

Bathroom sink with mirror & vanity light. Presently, the vanity light switch and single receptacle are separate from each other and in awkward locations. I intend to put them together in a single ...
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30 views

Outlet problems after GFCI replacement

Replaced a GFCI outlet to the right of my sink. Was careful to mark all wires and photo with my iPhone. Hooked it all back up and it worked and tested fine. The outlet to the right of the GFCI will ...
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35 views

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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3answers
43 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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5answers
151 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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3answers
7k views

Why does my fluorescent ceiling fixture trip the GFCI sometimes?

Every so often, roughly a 1/20 chance, flipping the light switch to my laundry room's fluorescent fixture will trip the nearby GFCI outlet. Why is this? Is it more likely to be the GFCI being faulty ...
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50 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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71 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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1answer
205 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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2answers
7k views

Why does my GFCI receptacle trip when anything is plugged in?

My house was built in 1994. The garage is fed from one 20amp circuit wired to the lights first, then a GFCI, then a couple regular outlets. This has worked fine for me for 19+ years. We had a ...
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1answer
33k views

How do I wire a GFCI/Switch Combo?

I'm replacing an old GFCI/Switch combo. In the old one there are two wires coming into the line side, a hot wire and a neutral. On the load side there is one wire leading up to the lighting fixture. ...
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1answer
53 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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1answer
27 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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2answers
86 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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3answers
676 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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2answers
87 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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2answers
453 views

What is causing the clothes washer GFCI to trip?

I have a clothes washer which came with a gfci adapter. The cord didn't quite reach the nearest outlet, so we had the washer plugged into a (grounded) 3-outlet interior extension cord, then to the ...
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2answers
92 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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1answer
42 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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61 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
138 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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3answers
583 views

GFCI Outlet trips when white and copper wire touch

I wired a bath renovation with all power routed through a GFCI outlet. With power on, and all switches off, when I touch the white wire and the bare copper wire in a fixture box, the GFCI trips (did ...
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1answer
153 views

How can I add a GFCI receptacle on a circuit with split receptacles?

I have a typically wired living room with all receptacles switchable on the top outlet. We are installing a large fish tank and decided to add GFCI protection. I'm trying to change a single duplex to ...
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3answers
227 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 ...