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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What is the difference between a GFCI ungrounded circuit and a grounded circuit?

From reading this article it seems like an ungrounded 3-pronged outlet can be made safe by installing a gfci downstream in the circuit. Although the technique of installing GFCI devices in an ...
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GFCI outlet reading between 80 and 640 volts on multimeter

I am adding a circuit to feed off a live GFCI outlet. At the outlet I read 118V in both receptacles and the reading is stable. With the new cable, I connected the neutral white to the silver screw ...
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Converting electric receptacle with one hot and two neutral wires to GFCI

I'm trying to replace my washing machine receptacle with a GFCI one. The home was build in the early 70's and there is no ground wire. The receptacle had two neutral wires and one hot wire. I found ...
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Is a noisy / humming GFCI breaker OK?

I noticed a slight humming noise coming from a subpanel in my house. Narrowed it down to a single GFCI breaker. When I press the test button on this breaker and it trips to off, the sound is gone. Its ...
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can i use a 15 amp GFCI outlet in a 20 amp circuit?

I am installing two GFCI outlets in an outdoor Gazebo, can I use a 15 amp GFCI receptacle if the circuit is 20 amps?
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GFCI Breaker - Good or Bad?

I have a GFCI circuit (GFCI breaker in the breaker box). If I attempt to test this circuit by plugging in my GFI Tester into a standard outlet that is on this GFCI circuit, the GFI Tester lights ...
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New Leviton GFCI outlet not working

I just got a new GFCI outlet to replace a non-GFI one in my kitchen. It is a Leviton, product number is GFTR1-KW. For the life of me I don’t know why it’s not working. This same question has been ...
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AFCI breakers in a Main Panel installed and tripping immediately with neutral pigtail connected

Finishing my basement and had some help with our electrical install. I'm located in NJ btw, being that we installed new branched circuits (about 18 outlets and 16 LED lights), I had to use 3 breakers....
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Should I use a GFCI breaker or receptacles for my shed run?

In my question about running a circuit to my backyard shed, a discussion arose in the comments about whether I should use a GFCI breaker or have the convenience outlet be a GFCI. Instead of debating ...
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My GFCI/AFCI 20a kitchen socket warning lights are both flashing

Hope someone can help. All my outlets in my kitchen work, but my two GFCI/AFCI 20A outlets occasionally and utterly randomly will flip and for the most part the AFCI light on the outlet will flash, ...
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Will a Tripped GFCI wired at the end of a circuit kill power to all receptacles in that circuit? (Panel Breaker not tripped)

I have a panel circuit with a 20A breaker. This circuit has 4 regular outlets and 1 20A GFCI outlet wired at the end of the circuit. The GFCI outlet is 15 years old and is an outside receptacle with ...
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How do I access this external GFCI outlet? The cover doesn't seem easily removable

An electrician installed this outdoor outlet on my deck a couple of years ago. When we went to use it, we couldn't figure out how to expose the outlet to plug anything in. This stubborn cover seems ...
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GFI Leviton LB115-DS Testing at outlet with GCFI Tester

We're purchasing a new construction home and had an inspection done on it. The inspector flagged that the bathrooms were not GFCI protected. The builder is telling me that the panel is using leviton ...
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Outdoor Fan on GFCI Switch

I just replaced an outdoor ceiling fan/light on a gfci circuit, and once we completed the work and re-energized the circuit, my light switch will not move so I can test or turn on the fan. The GFCI ...
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How do I test a GFCI circuit breaker (without pushing the “test” button)?

I want to test if my oven can trip the GFCI. The leakage current should not be a problem but I worry about the GFCI would trip at high frequency. So I bought three circuit breaker and tested oven on ...
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Should I use DF (AFCI + GFCI) breaker for circuit sharing bathroom lights?

I have a bathroom which shares a lighting circuit with other living areas. In California this is required to be AFCI protected, but not required to be GFCI protected (receptacles are on a separate ...
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Why won't my replaced GFCI outlet power something plugged into it?

I have a string of outlets that was not working. I replaced the most upstream outlet GFCI with another GFCI. I also replaced some weathered outdoor outlets. Currently the GFCI is green and does send ...
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Reconfiguring GFCI circuit protection

Forgive me if this is basic or redundant, but I couldn't find any questions addressing my specific scenario. I've got a GFCI outlet in my garage which also protects three separate outdoor outlets. I ...
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Wiring garage ceiling light receptacle to gfci outlet

Hi I’m new to this site and new to the home improvement game so please take it easy if I am repeating others questions. So I’m a first time homebuyer and, currently, renovating my garage. I went to ...
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GFCI Wiring Question - I am confused how it worked before

I have a situation which I cannot figure out. I have a GFCI outlet near some pool equipment which feeds another set of outlets near the pool, the line hot also fed a switch for the pool light. As ...
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Old washing machine trips 20 amp GFCI outlet but never trips 20 amp breaker: ok to install 30 amp GFCI outlet?

A sturdy old washing machine draws more than 20 amps mid-cycle when Rinse starts. Repairman says the brushes on the washer motor are probably a bit worn, so it draws a bit more than 20 amps when ...
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GFCI Outlet Hard Fail

I have an electrically powered Drop-shade that is hot-wired to the load side terminals of my GFCI. The GFCI is a dedicated circuit there are no other outlets daisy chained to this GCFI. It worked ...
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Can I remove 2 GFCI breakers and install a tandem if the box accepts a tandem?

I want to add a 220v 20 amp breaker to run a mini split A/c. I only have 1 space in the box left. I see there are other tandem switches in there. I also see 2 regular breakers with blue switches. I ...
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Downstream non-gfci outlet needs to power a refrigerator

The above picture is the backside of a non-GFCI downstream outlet. I would like to plug a refrigerator into this outlet. However, when I do the circuit gets tripped due to the surge of the motor ...
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Is it safe to split a NEMA 10-50 receptacle?

Is it safe to split a NEMA 10-50 receptacle to a range to add a pair of 5-15 GFCI receptacles? Unfortunately, I am currently renting, and the homeowner refuses to allow any work to be done. I have ...
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Replacing gfci and switch lost with wiring

I am trying to replace a GFCI and a switch that share the same box, the old one had line and load opposite of the new and and I have now gotten lost. I have 4 black wires 2 white and 1 ground, hot ...
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Troubleshooting electric pump that triggers GFCI

I have a submersible pool cover pump that keeps triggering the GFCI outlet. I know the pump is the problem because I have another, identical pump that does not trigger the outlet. I'd like to try to ...
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Pigtail off before kitchen 20A GFCI for Cabinet Lighting?

I'm struggling finding a power source for the cabinet lighting in our remodel. The breaker box is very full and I'd rather not re-wire/double up breakers are this time. Is it ok to pigtail off of ...
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Refrigerator Tripping GFCI Suddenly

I have an issue with my LG fridge. The fridge is 2 years old and has been working fine until this morning. When I opened the doors the lights when out. I (after some time) figured out that it had ...
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What could be a reason for RCCB triggering?

I have RCCB/RCD with four circuit breakers at the entrance of my aparment (I am actually not quite sure how it is called in english, so here is RCCD and CB is ABB s231r with different max amps) ...
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GFI trips when turning on a computer with the monitor on but not when the monitor is off

I have an unusual situation here. I have an older Dell computer that is plugged into an outlet. The monitor that I use with this computer has its own power switch and is also plugged into the same ...
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Will gfci receptacles trip before a gfci breaker on same circuit

A 2nd floor bathroom I am remodeling has receptacles protected by gfci breaker in the panel which is in the basement. A previous contractor put gfci receptacles at two locations over vanity. Is ...
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New Range Outlet

Quick two-part question. The wife and I recently bought a gas range to replace our electric. Aside from having to extend the existing gas line, I also need to install a 120v outlet in the wall ...
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GFCI tripping for separate circuit

I just installed a gfci outlet, and its tripping when a 3way switch on a separate breaker is turned on Some background: I have two separate circuit breakers, when they are turned off, the following ...
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Replacement outdoor GFCI has also stopped working

I moved into a house with an outside GFCI receptacle. The outlet didn't seem to work and the reset button had no effect. No other outlets around or outside the house appeared to be tripped. I pulled ...
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How to replace a razor only outlet with a gfci

So when I opened the razor only outlet, I found 2 wires connected to either a pair of white and black wires. I'm not sure how to determine which white goes with which black. Help?
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GFCI keeps tripping from garbage disposal

I’m having a problem with a GFCI outlet that keeps tripping all of a sudden. I installed a garbage disposal and GFCI outlet under my sink seven years ago. The last few days every time I use the ...
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Does this existing wiring with shared neutrals need to be corrected?

I've come across some existing wiring in my home and I wonder if it needs to be changed. In my basement, there is a 4" box with a 20a GFCI receptacle. A conduit runs into this box. The conduit ...
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Using a Leviton GFCI self grounding outlet on 1950s house with metal boxes that might or might not be grounded

My house (1950s) currently has a bunch of 2 prong outlets or un-grounded 3 prong outlets. I was told in order to be up to code all un-grounded 3 prong outlets need to switched to GCFI outlets. Or If I ...
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Safety differences between the various types of outlet (two-/three-prong, grounded/ungrounded, with/without GFCI)

I am an ordinary person with absolutely no knowledge regarding electricity and how it works (things like circuits and such) and I never really cared before until now when I sense potential safety ...
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Is it acceptable to have a GFCI on a circuit that does not have a circuit breaker?

I bought an existing home 2 years ago. It has 4 GFCI's on outdoor walls. 3 of the GFCI are on circuits controlled by circuit breakers in an electrical sub-panel panel. The fourth GFCI does not appear ...
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All fixtures blink then turn off

All fixtures (2 lights, 2 receptacles, 1 exhaust fan) blink, then turn off. Neither circuit breaker nor GFCI kick off. Wire = 12/2 w Ground.
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Diagnosing GFCi trips with a laser printer

I have an HP consumer-sized color laser printer. (M255dw). I plugged into a GFCi receptacle that protects outside outlets wired to its output terminals. Every so often, it tripped when the printer ...
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Afci/Gfci on the same circuit

Can I install a AFCI/GFCI outlet on the same circuit that has a GFCI outlet. Right now I have the first outlet from the breaker as a GFCI and I want to switch it to a AFCI/GFCI, but that same circuit ...
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GFCI not working with shared wire

I am replacing an outlet in my kitchen and if I replace a regular outlet with a GFCI it and the kitchen lights stop working. If I put back the old outlet or a new "regular" outlet everything works. ...
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Detaching wires from an outlet doesn't seem to affect others on the circuit

I'm trying to ID the first outlet in a circuit. I've done this procedure successfully before, to install a GFCI, but this time around, I'm utterly confused. I've removed the wiring from three ...
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Turning on light fixture trips GFCI on a different circuit

When I turn on the light fixture in the bathroom, the GFCI in the bedroom trips and cuts the power in both places. The bathroom and bedroom are on two different circuits, controlled by two separate ...
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Can a neutral be shared beween the line and load side of a GFCI if it's on the same circuit?

All neutrals are crimped together on this circuit. Not daisy chained. So I have one hot and one neutral from panel (line) and one hot downstream (load). And additional no neutral wire for going ...
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Hot and Neutral on Same Circuit Breaker

I just installed a new GFCI and it keeps shutting off even though I connected it properly. I traced the wires and found that the neutral was connected to the same Circuit Breaker as the hot. WHY? And ...
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Should a entire bathroom circuit run from a GFCI outlet

I have a bathroom that is on its own circuit that feeds power from the panel to a GFCI receptacle and then feeds 2 lights and the bathroom fan. So if the GFCI trips the lights and the fan goes out ...

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