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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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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92 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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3answers
1k 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
31 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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1answer
80 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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2answers
484 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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2answers
300 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
50 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
902 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
131 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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3answers
745 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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0answers
495 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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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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2answers
272 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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2answers
1k 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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2answers
997 views

AFCI trips when neutral and ground touched

Is this normal? I find an answer here that this is normal but I do not understand. Can anyone add an explanation, please. AFCI is Square D 20A HOM120CAFIC, Issue No. DP-3640 HACR Type
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1answer
207 views

Do AFCI/GFCI receptacles protect downstream circuits without equipment bonding conductor?

I am renovating part of my house, and taking the time to update some old wiring that is now exposed. The old wiring is primarily #14/2c WITH NO BARE BONDING CONDUCTOR. This means that no device ...
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5answers
6k 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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1answer
388 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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1answer
96 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! ...
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2answers
931 views

replace regular breaker with dual function AFCI/GFCI

I have a 15amp circuit that feeds outlets in the upstairs bedrooms, the one outlet in the upstairs bathroom and a few light fixtures. A few years ago I replaced the bathroom outlet with a GFCI outlet ...
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1answer
329 views

Is a new refrigerator likely to trip a 20 amp AFCI/GFCI circuit?

Will a new GE Cafe refrigerator/freezer work on my kitchen AFCI/GFCI 20 amp refrigerator outlet? My current 8 year old Samsung constantly trips the circuit.
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2answers
8k views

Refrigerator trips new AFCI/GFCI circuit breakers

Remodeled kitchen and electrician had to install new AFCI/GFCI Seimens circuit breakers to comply with code. Now my 8 yr old Samsung 24 cu ft refrigerator trips the c/b every 12 minutes to as long as ...
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3answers
2k 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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1answer
851 views

is AFCI required for 220v CA residential?

As I understand it CA now requires AFCI protection for practically all residential outlets. I'm setting up my theater room and it calls for a 50A 220V NEMA 6-50 outlet for the subwoofer I want but I'...
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0answers
128 views

Shared Neutral for Hot and Line Side of AFCI Receptacle

Good Day I am planning a MWBC. At the start of this circuit will be an AFCI Receptacle in a Hallway. This will then Branch to Hallway Lights in one direction, and Dimmer Lights & a second ...
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0answers
685 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
149 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
18k 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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2answers
4k 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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1answer
2k 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 ...
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3answers
503 views

EMT or PVC in Bathroom?

OK, so I am wiring my cabin (actually a small house, 16x24), and I have a 6x8 room that will eventually become a bathroom, and a nook that will be a kitchenette. All the wiring in the house is surface ...
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4answers
30k 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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3answers
339 views

Trouble with diy wiring in basement room with afci and ceiling fan

So... I as a self/ Google taught electrician have wired in a room I have made in my basement with the following issues. The ceiling fan trips the afci breaker every time. It is fine with a normal ...
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1answer
1k views

Combination GFCI/AFCI Breaker not working when replacing regular breaker

First time posting. I'm doing some upgrades to our house electrical. We live in a 1950s home. An electrician recommended I replace the old breakers on ungrounded circuits off the house sub-panel ...
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2answers
4k views

Would it be reasonable and legal to use AFCI receptacles next to a panel instead of AFCI breakers?

I've been googling, searching this community and looking over the 2017 NEC codebook (which can be very confusing) and I've come to the conclusion that a crystal clear, no nonsense, straight forward ...
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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
2k views

Upgrading 2 breakers to AFCI, always trips

I'm doing some electrical work in the upstairs bedrooms, and part of the permit is to add AFCI protection. The house was built in 1968, has a 100A service and a Square D breakers panel. Currently ...
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1answer
3k views

AFCI/GFCI breaker trips immediately with “extra” ground

I recently installed some AFCI/GFCI circuit breakers. One of them kept tripping immediately, so I tracked down the problem to where a neutral and ground were joined. (There was just the one neutral in ...
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1answer
9k views

Do I need AFCI protection on new lighting circuits or just for outlets?

I am in the process of re-wiring a 100 year old house. I want to make sure everything is done to the new NEC codes. I need to know if arc fault protection is required on lighting circuits or just ...
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1answer
645 views

Do I need to upgrade my branch circuits to CAFCI/GFCI if I move my electrical panel?

I'm moving my main panelboard as part of a service upgrade. The panelboard is brand new (i.e. I'm not reusing the old board). Do I need to add CAFCI/GFCI breakers on the old branch circuits (as ...
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2answers
1k views

AFCI breaker trips when GFCI receptable's test button is pressed

I have 2 bathrooms that have a total of 3 outlets from the same power source. When I press the test button on one of GFCI outlet, it will not only cut off its own power but it will also trip the AFCI ...
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1answer
5k views

Do 240 volt dryers need to be AFCI protected

Under 2014 NEC do 240 volt dryer sockets need to be AFCI protected? I see paragraphs specifying that single phase 125 volt circuits must be protected, but I have not found specifications for two ...
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0answers
5k views

Samsung Front Load washer WF45k6500/AV/A2 trips GFCI Combination AFCI breaker

I have a new home constructed 10/16. The washer was installed at the time of closing. We did not have an issue until January when the washer required a self clean cycle. With about 10 minutes left ...
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2answers
2k 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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1answer
306 views

Limits to load connections for AFCI/GFCI Outlet

I am remodeling my basement. I will have 4 separate electrical circuits. 20A Circuit to Bathroom 20A Circuit to Laundry room 15A Circuit for left side outlets / lights 15A Circuit for right side ...
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0answers
1k 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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2answers
2k views

What parts of a circuit does an AFCI receptacle protect?

I'm assuming that it will protect against arcing in the appliance that is plugged into it. Will the AFCI receptacle trip if an arc is detected in the wiring from the panel to the receptacle? Will ...
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2answers
19k 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 ...
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0answers
109 views

AFCI breakers - 30mA ground fault detection threshold - nuisance trips? [duplicate]

I'm trying to understand a bit about nuisance-tripping, and I'm wondering if anyone here has some insight. I know (or think I know) that a Class A GFCI breaker should trip when there is a 6mA ground ...