Questions tagged [afci]

Arc-fault circuit interrupter are safety switches, similar to GFCI, that are used to detect electrical arcing and shutoff power to prevent the risk of fire.

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2answers
57 views

Two hots, one shared neutral, can it work with plug on neutral GFCI/AFCI breakers?

Situation: A 1950s house with some equally old wiring, and some remaining EMT wiring that is being put onto a new QO main svc panel (QO142M200PCAFVP). This is a plug-on-neutral panel. I believe per ...
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1answer
31 views

Is it required/recommended to use AFCI/GFCI breaker when replacing subpanel?

I'm replacing my subpanel at home. My jurisdiction adopts NEC 2017. When replacing a subpanel, is it required to have CAFCI on all circuit breakers for all 120V circuits? When replacing a subpanel, ...
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2answers
95 views

Refrigerator on GFCI is tripping other AFCI breakers in the house

This is going to sound really weird, but it has been going on for 6 years and the electricians that wired our house spent multiple days trying to figure it out before we found it was definitely the ...
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2answers
81 views

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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1answer
47 views

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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1answer
40 views

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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6answers
90k views

Where should I NOT use a GFCI or AFCI?

There is a lot of information out there about the benefits of GFCI and AFCI and the places where they must or should be used. But are there any circumstances where you're better off without them? If I ...
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5answers
2k views

Can a surge protector prevent nuisance AFCI breaker trips?

I have a problem with AFCI breakers tripping in my 2 and a half year old house. The builder's electrician said that the cause is from power surges coming from the electrical company and that I need to ...
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2answers
61 views

Is AFCI a requirement outside the United States?

I have been asked to come into a site (outside of United States; Central America to be specific) - but one of the personnel there asked about NEC compliance; specifically AFCI. How can I educate ...
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1answer
7k views

was it ever legal to use 3 wire cable to operate two circuits one neutral 120 volts?

My house was built in the early 60s, I have 4 circuits that are created by using 2 3 wire cables, each hot leg goes to a 120v breaker side by side in the panel. The neutral goes to the neutral bus. I ...
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5answers
9k views

Why does my microwave trip my AFCI only when it's mostly empty?

I live in a recently redone home and I'm having a very odd electrical issue. My microwave is intermittently tripping a combination arc fault breaker only when it is mostly empty, e.g. one slice of ...
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1answer
93 views

2 AFCI Breakers Tripping - One instantly and the other after a few minutes

I have 2x 15amp AFCI Siemens breakers, both are tripping. One breaker would trip instantly and the other one after a few minutes. Nothing new was plugged in into these circuits. It just happened out ...
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1answer
13k views

Where should arc fault breaker not be used?

I'm trying to stay on top of the electricians rewiring our house and correctly interpret the NEC 2017 for arc fault breakers. There is a permit and an inspection when they done, but I want to ...
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0answers
91 views

No power at bathroom outlets

Recently moved into a new house. First thing I did was go to the panel and, tediously, went through each breaker to make a detailed master breaker list. After doing so I noticed that my outside ...
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2answers
35 views

afci protection for kitchen hood fan

I'm wiring a new house and have installed a dedicated 15 amp circuit to the hood fan located over the range in the kitchen. Does this circuit need to be on a afci breaker?
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3answers
28k views

Configuring a plug-on-neutral breaker panel as a subpanel

I recently learned about a new species of breaker panel known as the "plug-on-neutral" design. All the major load center manufacturers seem to be making these now. The idea is to provide a ...
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0answers
57 views

Why does my breaker trip when turning on lights on another circuit?

I'm trying to diagnose an issue that has cropped up in the last few days regarding a nuisance tripping breaker. For background, I've lived in this apartment for 6 months now, with no notable changes ...
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1answer
1k views

Vacuum Cleaner Trips Breaker

I have a brand new vacuum (dyson) that trips my breaker. Never happened before this except once when I ran 2 other vacuums at the same time
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2answers
83 views

Upgrading apartment: GFCI/AFCI breakers and wires

I'm making plans to replace electrical wiring (new wires) and breaker in my apartment. I live in New York city (for code purposes). My breakers are rated as 20 A, NOT GFCI/AFCI. I have some outlets in ...
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2answers
16k views

AFCI breakers/protection and refrigerators - a bad idea?

The 2014 NEC requires AFCI protection for refrigerators. I've read that one shouldn't use GFCI protection for a refrigerator, but I know that AFCI breakers do include ground-fault protection (at a ...
4
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1answer
370 views

How is “continuous wiring” defined in context of the 2017 NEC code?

First, some context: About AFCI protection in Dwelling Units, NEC 2017: 210.12(A) All 120-volt, single-phase, 15- and 20-ampere branch circuits supplying outlets or devices installed [...] shall be ...
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2answers
2k views

When to change Cutler-Hammer electrical panel and breakers?

I bought a house about a year ago and I have an old Cutler-Hammer electrical panel. I see the number 2001 written on there, but no idea when it was installed. I have a few questions about this panel: ...
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1answer
76 views

Will a SimpliSafe security system which include smoke detectors qualify under fire panel exception for the NEC's AFCI requirements?

To expand on the question I'm trying to put these AFCI's and GFI's everywhere I need them, but nowhere I do not. Also my experience with AFCI's up to this point have been poor. They trip when the ...
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3answers
532 views

Dual GFCI/AFCI breaker to support regular TRR USB outlets on kitchen counter: to code?

I would like to replace some outlets that run along my kitchen countertop because the TRR plugs are hard to plug in, and I would like to put ones that have USB jacks. I know that GFCIs are required ...
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0answers
34 views

How do I toubleshoot Intermitant failure with an AFCI breaker?

Six months ago I remodeled my kitchen. Even though nobody is using AFCI breakers or recepticles in my area, I decided to use AFCI/GFCI receptacles as opposed to GFCI's. The particular circuit in ...
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2answers
64 views

Troubleshooting immediate CAFI Trip

I'm currently building an addition to our house and in the final phase of wiring - installing the switched, receptacles and fixtures. I am running into an issue and was hoping to get some help ...
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3answers
11k views

What should I do if the AFCI breaker neutral pigtail is too short?

I am wiring a house that I built, and code says I need an AFCI for the bedroom circuit. The panel that I will be installing this AFCI breaker in is a subpanel, so my ground/neutrals are on 2 ...
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4answers
1k views

Ground Fault Circuit Interrupter vs AFCI

What is the key difference between a Ground Fault Circuit Interrupter and an Arc Fault Circuit Interrupter? The Acronyms AFCI/GFCI kind of tell us that they do, detect ground faults and arc faults, ...
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1answer
99 views

New Circuit Faceless AFCI tripping with no load

Most AFCI questions here revolve around existing circuits, and AFCI Circuit breakers, but my situation is a little different. Here's the details: Renovation to add a half bath and laundry room in ...
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2answers
62 views

AFCI Breaker tripping

hoping to pick your brain about some electrical issue I'm having. The outlets in 3 of my rooms stopped working - the AFCI breaker (15 a) for that circuit is tripping and won't reset. The lights are on ...
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6answers
10k views

Why is an AFCI tripping when a particular light on a different circuit is turned on?

I have 4 GE AFCIs in a GE subpanel in my basement. Occasionally, when I turn on a bank of dimmable CFL lights via a CFL-rated dimmer switch, I get a trip in a particular AFCI breaker that's on the ...
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3answers
135 views

should 30 yr old home have some/all breakers replaced with AFCI /GFCI? If so, which ones?

My brother-in-law, licensed master electrician was just visiting us. After looking at my break panel he strongly suggested I should replace most, if not all, of my CBs with AFCI. I have a 200A GE ...
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0answers
30 views

AFCI Breaker with a two wire switch with no power to it going to a box for the ceiling light with new three wire power

I have an existing two wire switch box that is going to a ceiling junction box where there is new three wire power and another two wire connection to an outlet. I want to install a new light. I ...
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2answers
141 views

Switch(es?) blowing AFCI breaker

So I need some help (again) with an electrical issue. I wired the basement and due to some new building code all the breakers are AFCI (which I am suspecting is a part of the problem). In the ...
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1answer
76 views

Two new circuits - both trip simultaneously on load

Adding two new 20a AFCI circuits to a basement project. I tied the circuits to the breaker panel and all outlets test out ok with a tester. The second I put any load on either circuit, however, BOTH ...
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3answers
231 views

New house, new LG refrigerator & AFCI wiring

We just bought a house, May 2019, the first week the AFCI breakers began to trip. Outlets & switches both. The biggest concern is our new LG refrigerator. It trips about once a week, sometimes ...
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2answers
116 views

AFCI randomly tripping, and related questions

Warning, this may be a bit long ... I'll do my best to be brief but it's a somewhat complicated situation. Primary issue is that the AFCI breaker trips in a very random pattern that I can't figure ...
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1answer
37 views

Half my breaker panel went out and the other half when turned on has AFCI light [duplicate]

I got home last night and about half the lights and appliances were out. The breakers were not tripped and turning them on didn't help. Some breaker circuits had electricity, and some didn't. The ...
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2answers
355 views

Diagnosing frequent trips on arc fault / ground fault (dual) breakers

During recent work we've been upgrading breakers to dual arc-fault / ground fault. Square D QO series (USA). I've noticed a couple of them tripping pretty frequently when certain appliances are used. ...
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2answers
2k views

AFCI trips immediately

Out of no where, starting today, my Siemens AFCI breaker tripped. It trips immediately every time I attempt to reset it. Nothing has changed in my house. I turned off all light switches and unplugged ...
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2answers
59 views

multi-wire branch circuit breaker question

i have several outside floodlights, and several outside outlets. family member wired it plugging into the outside outlets causes the breaker to trip using a 4-conductor cable(1 black, 1 red, 1 ...
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2answers
1k views

Can a smoke detector circuit be GFCI and CAFCI protected?

I purchased a dual GFCI/CAFCI circuit breaker to place on my circuit that contains only smoke, CO, and heat detectors inside my house. Is there anything wrong with this or can I install it to have ...
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4answers
6k views

Loss of power when I remove item from the outlet

I have this unusual electrical issue in our master bedroom. I was wondering if anyone else has experienced this. We have this $3 LED night light in our bedroom and when we take it out, the power/...
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0answers
239 views

Three-way light trips new AFCI breaker

I recently replaced my home's load center. As part of that surgery, my breakers were also updated to (combination) AFCI breakers. My house has many Multi-wire branch circuits, so I also got a couple ...
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2answers
196 views

Why don't we just use combination AFCI/GFCI breakers for every circuit in a home?

With pretty much every circuit in a home needing one of the two types of protection (AFCI or GFCI), why don't all new homes have combination breakers installed just to be safe? Would it hurt anything ...
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1answer
241 views

AFCI Trips When Stainless Steel Hoses Touch Washing Machine Cabinet. Why?

I noticed the hot water hose on my washing machine (SpeedQueen Top Loader) was corroded, so I decided to replace the hoses. I bought braided stainless steel hoses and installed them. ...
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0answers
796 views

Hot/Neutral reversed at receptacles after AFCI breaker was installed, can AFCI still work correctly?

Starting condition: I have 3 outlets in a room and 2 of them have Hot and Neutral reversed. Change: The electrician came in an installed AFCI breakers At my request, they also changed the outlets to ...
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4answers
25k views

What rooms or loads require AFCI protection?

Do I need AFCI for dedicated circuits like sump pumps, furnaces, microwave, refrigerator etc.
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2answers
676 views

Is it better to use a AFCI/ GFCI breaker in the panel or do to use a AFCI/ GFCI receptacle? [closed]

To protect a bathroom outlet, should I put an AFCI/GFCI breaker in the breaker box or do I put in an AFCI/GFCI receptacle? Can a AFCI/GFCI receptacle be divided into 2 circuits with a 20A breaker ...
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1answer
84 views

What is the difference between a Combination AFCI Breaker and a AFCI Breaker

After reading many articles and comments concerning AFCI and GFCI breakers I set out to my local Lowes. In the old days buying a fuse or a circuit breaker was pretty straight forward. Not anymore! ...