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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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Fridge flips GFCI outlet in kitchen, why

I've been reading around the net for about 20 minutes and came across a lot of talk about how GFCI are usually on their own 15-20 A breaker and the defreost cycle can cause the interrupt in a GCFI ...
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32 views

GFCI with a light switch off the load trips when switch is off

I'm at my troubleshooting limit, double checking all the grounds, caps are tight and no cross wires. If it tripped as soon as I turned the light switch on it would make sense but it's not until 15+min ...
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41 views

Replacing receptacles protected by one GFCI outlet

My current setup is one GFCI receptacle and three regular receptacles downstream that are protected by the one. Everything had been working fine (it even tripped recently and I reset it, so I know it ...
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61 views

How can I switch my standard outlet to a GFCI?

I have a standard 2 receptacle outlet in my house. I am trying to switch it to a GFCI. I realize GFCI has load and a line side. There is also a switch in my room that is tied into this outlet (and ...
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3answers
104 views

Does my three season porch ceiling outlet require a GFCI?

An electrician put an electrical outlet box in our covered porch ceiling. We want to hang a light fixture (one with a cord and plug over a dining table). I will be installing the outlet myself. Do I ...
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47 views

GFCI Grounding Issue

I'm trying to replace a two prong outlet in my garage with a GFCI. The receptacle line is fed from a light switch on the wall, and the load runs to an outdoor(one bulb) lamp post. The general ...
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51 views

Is one failed test enough evidence to replace an RCBO?

The consumer unit in my shed (in the UK) has an RCBO. I pushed the test button and the breaker did not trip. I then reset and rearmed the breaker using the lever. It now trips every time I push the ...
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68 views

GFCE-protected outlet trips, GFCI outlet doesn't

I recently moved into this house. I have a GFCI-protected outlet on an island in the kitchen (on the right in the picture): it is protected by a GFCI outlet on the wall (left of the stove in the ...
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157 views

GFCI WR question

I am installing a couple outlet outside and I noticed a significant price difference between a standard GFCI outlet and the WR GFCI ones. If I put a GFCI outlet in a weather resistant box why would I ...
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45 views

220 volt GFI triped by hot tub?

I have a hot tub connected to a 50 amp 220v trip that has a neutral pigtail connected to the neutral bus. The natural for the tub is connected to the bus. The 220v connects directly to the control ...
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252 views

GFCI seemed to fizzle and pop, and now works as a non-GFCI outlet - what happened?

An outdoor GFCI that's under a covered porch has been working fine for a long time, but recently started failing to turn off when the 'test' button is hit. Here's what I observed. Right after ...
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46 views

Why an outlet tester light blinks?

Testing outlets, having the two yellow leds "ON" (right connection) one of them blinks. What is the reason of that?
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36 views

Confusion when adding new GFCI outlet

I am replacing an existing outlet with a GFCI outlet. The existing outlet functioned fine, but I want GCFI protection on the circuit. It appears to be your standard daisy-chained outlet box - 2 ...
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55 views

Can a 20A GFCI be added to beginning of a 20A circuit that serves (8) 15A receptacles & light fixtures?

There's a 20A circuit that passes right by a spot I need an additional outlet for a lamp/general use near laundry. Currently it serves about 8 devices, either single bulb light fixtures or 15A 3-prong ...
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29 views

GFCI trips when reset and many devices are connected to it

I have connected a GFCI 15A to a 20A breaker although all outlets have the typical 15A NEMA. Whenever I turn it on it trips if any devices are connected. If I disconnect everything it doesn't trip. ...
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166 views

Should I cover or move this outlet?

I've got this lovely situation in my garage where there's an outlet right above the deep sink, and while I don't have my tape measure handy I'm fairly certain this is less than 6' from the sink, and ...
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63 views

Electrical - GFCI tripping

I was replacing an outlet in my bathroom with a gfci outlet. When I throw on the power, it trips but not only that, it takes out a set of lights over the mirror which are connected to a double switch ...
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50 views

Multiple GFCI with two hot wires and shared neutral

I learned about wiring multiple GFCIs with 12-3 wire from this post: How do I install a GFCI receptacle with two hot wires and common neutral? And a I have a related question as to why this circuit (...
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1answer
28 views

Added Outlet to a GFI Receptacle covered circuit

In my garage I have a single 15 Amp circuit that has 4 receptacles on it. One of the receptacles has a refrigerator and an upright small freezer on it, all are non-self defrosting type. Nothing else ...
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3answers
145 views

Can I add a non-GFCI receptacle in the garage for a freezer?

It seems that GFCI-protected receptacles are required in all areas of the garage (even on the ceiling, where the garage door opener plugs in). Can I install a non-protected (15A) receptacle ...
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1answer
53 views

Should outdoor lamp post be on GFCI

I have an outdoor lamppost at the end of my driveway. Its not currently on a GFCI circuit. Shouldn't it be? It does not have an outlet by it. If it did, then it would need GFCI for sure, right?
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43 views

Add a switch for a pool light

We just bought a house that needed some upgrades and one of the first ones up was the electrical panel. Hired an electrical company to come out and upgrade it to a 200amp box. Work went fine and ...
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3answers
184 views

Is there harm in using a GFCI outlet as a switch?

I have a GFCI outlet in my garage which is about 4 feet off the ground. I have a couple work lights plugged into it which can only be turned on and off by plugging/unplugging them. I have recently ...
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27 views

Two GFCI's on the same circuit in my RV. One works. One doesn't

My RV is running 120v off an inverter, if that matters. One circuit is for everything in the rear of the RV and goes from the breaker panel to a GFCI in the bedroom and then branches out to all 4 ...
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1answer
45 views

outdoor gfi stopped working

I had an electrician come and change my outdoor outlet. He replaced it with a weatherproof GFI. It worked for 1 day and stopped working. I called him numerous times to come back but he would mot come. ...
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42 views

Is a Replacing GFCI difficult [duplicate]

I have a GFCI outlet in my powder room that needs to be replaced. Is it significantly more difficult to replace a GFCI than an ordinary outlet?
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127 views

Tankless 240V water heater in detached garage tripping AFCI/GFCI breakers in house

We have two separate buildings, a house and a garage/workshop, about 20 feet apart, sharing the same electrical service. On the service entrance, there's a Siemens whole-house surge protector. The ...
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1answer
127 views

Two black, two white, two ground, one red wire in bathroom receptacle: huh?

I'm going through my house (built 1940s) and replacing a bunch of receptacles with GFCIs. Most of the receptacles that I've opened up have one black and one white: I hook them up to the hot and ...
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2answers
20 views

GFCI position in the line

I am installing a GFCI. There are several other outlets in the same line. How can I find out which of the other outlets is downstream from the GFCI?
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1answer
219 views

Ceiling fan on one circuit tripping GFCI on separate circuit

Installed a ceiling fan dimmer switch in a bedroom that is on an arc fault circuit. When pushing the dimmer switch up or down on the ceiling fan, it then trips the GFCI outlet on the bathroom circuit....
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1answer
70 views

GFCI won't reset even though circuit is ok

I have a shop wired without GFCI outlets. I decided that was unsafe so purchased three GFCI outlets, picked the nearest outlet and wired as described. When I powered it up a huge POP occurred in the ...
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3answers
67 views

GFCI rating for Bathroom and Kitchen

An electrician came over today for an inspection, and pointed out that the GFCI's we have in the bathroom, kitchen and garage are only 15Amp; they claim that code requires 20Amp GFCIs in these ...
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36 views

GFCI Suddenly Tripping

I have 4 GFCI plugs on the kitchen wall that have been there for a few years. Late afternoon yesterday, all 4 tripped. I kept resetting them and they kept tripping. 2 are on 1 breaker and 2 on another....
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40 views

Why do I get 150v between line and ground, but 0v between line and neutral? [duplicate]

I have a GFCI device protecting 3 different circuits. Recently one of the circuits tripped (lost power)due to a load (iron) being pulled from from the outlet while in use. The GFCI did not trip. There ...
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1answer
26 views

2 GFCIs out of one box to different circuits

I just rewired my garage using what was there and have non-functional brand new GFCI outlets. They both come out of one box and feed separate circuits in my garage (one to a wall and other to my ...
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68 views

breakers all putting out power but outlet not working

Was using a power drill on a gfci outlet and power suddenly stopped. The trip light did not go on on the outlet but the test button cannot be pushed (means no power, correct?) I took off the gfci and ...
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39 views

GFI outlets not working - resets working

4 outside GFI outlets and 2 in the garage not working. One in the garage has a GFI red light. The light is powered on, but outlet doesn't work. The Elec Panel GFI is not tripped. Help
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GFCI breaker trips with no load but does not trip when wires are disconnected

GFCI breaker feeding a bathroom and other outlets in joining rooms. This used to work fine until a few days ago. Found out that there was a lot of moisture in the bathroom and the breaker tripped. ...
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162 views

Double-pole, 240-Volt, 15 Amp GFCI circuit breaker to create two 15amp 120 circuits for switched split receptacles

Double-pole, 240-Volt, 15 Amp GFCI circuit breaker to create two 15amp 120 circuits for switched split receptacles. Im trying to figure if i can share a neutral after GFCI dual pole breaker so i can ...
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1answer
360 views

How should I connect GFCI outlets where the wires loop over the existing outlet?

Hopefully this picture explains it all. However I'm confused what to do with my hot and neutral wires in a loop like this. Obviously these lines are connected to outlets down the line, but I'm not ...
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81 views

How should I connect a GFCI outlet on a well pump circuit?

I need help installing a GFI that's outside house. In the box there are 2 white wires and 2 black & bare ground. One set of wires come from the house and the other 2 go to a well. I tried hooking ...
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271 views

Why does my bath fan trip the GFCI outlet protecting it?

I am attempting to protect a new bath exhaust fan (DewStop Breezeasy F22-1w) through a GFCI (Leviton SmartLocPro) The area is a new construction bathroom. Each time I attempt to switch on the fan the ...
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3answers
120 views

Adding a GFCI to an existing circuit. 2 black, 2 white wire problem

I'm trying to add a GFCI outlet to an existing circuit and have run into an unexpected obstacle. All of the wiring literature and videos I've come across allude to either 12/2 or 14/2 cable with 1 ...
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1answer
53 views

GFI trips when light fixture plugged in

When I plug a light (in a metal enclosure) into an outdoor GFI, the GFI trips. This happens on two different outdoor GFIs that are near to each other. My test meter detects no connection between ...
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2answers
291 views

AFCI Breaker Randomly Tripping - No New Devices

We did a lot of investigating and found several clarifications that I didn't have correct in my previous post. New summary of the problem: It's a Siemens Type QAF 20 amp breaker, 2006-built home - ...
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443 views

Why would the neutral wire in my bathroom's outlet box have voltage?

So, my wife was using the hair dryer in the bathroom, connected to the GFCI plug when the power to the bathroom plug goes out. I toggled the circuit breaker on/off, still not power. Suspecting the ...
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181 views

Feit receptacle with USB ports trip GFCI

I replaced a standard dual 120V outlet at the end of a kitchen counter GFCI circuit with the Feit dual 120V with 2 USB Ports. I taped over the outlet screws as I'm pushing it into a metal box and a ...
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411 views

How can I prevent an exterior GFCI outlet from tripping so often?

Presently I have a GFCI (120V) located on an outlet in my utility room of the house. From this outlet on the LOAD side, I have a #12 3 wire cable running in Schedule 40 conduit underground 150 feet ...
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51 views

Plugging load into any of the last few downstream duplexes trips the gfci

In an old house with no ground wires and metal duplex boxes, we installed a GFCI in the first box in one circuit, and new 3-prong duplexes downstream named A through E. When we plug a load into duplex ...
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1answer
163 views

GFCI/AFCI Trips With No Load And New Wire

I moved into a house last year that has some 2-wire receptacles, and some 3-wire receptacles. I have been adding GFCIs and AFCIs where required. I recently removed the conductors and old receptacles ...