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
43 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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4answers
288 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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63 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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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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40 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
102 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
122 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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588 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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1answer
461 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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4answers
12k 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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124 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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5answers
68k 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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1answer
62 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
118 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
50 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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76 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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3answers
18k 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 neutral bar ...
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5answers
17k views

Should I use a GFCI or AFCI circuit breaker with knob and tube wiring?

My American house was built in 1942, and much of the wiring is still knob-and-tube wiring (2-wire, no ground). Over the years new modern wiring has been added to the house, but we still have some KnT ...
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2answers
231 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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2answers
3k views

AFCI breaker tripping when any load attached

advanced home DIY-er here. I put in a new Murray (Siemens) AFCI breaker and new 14-2 wire from the breaker box up straight to a light in a bathroom I'm remodeling (single wire for the complete run). ...
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1answer
158 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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1k 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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1answer
10k 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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1answer
57 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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312 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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0answers
67 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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1answer
4k 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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3answers
3k views

Why would changing ceiling fan speed cause an AFCI breaker to trip?

I recently installed 2 ceiling fans with Lutron combination light and fan dimmer switches. On both circuits, if more than a half second or so is taken when selecting the fan speed (that is, a delay ...
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6answers
32k views

What would cause an AFCI breaker to trip under no load?

I have an AFCI breaker that trips with 0 load - nothing plugged in, no lights on. To test that power is getting to the room, I turn on the overhead CFL lights (very light load) and flip the breaker. ...
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2answers
2k 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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3answers
9k views

What should I do if my vacuum trips my AFCI device?

I have a vacuum that trips the AFCI device of the circuit that services my bedroom. The vacuum has some age on it, and there is some wear on the motor's commutator. This wear causes electrical ...
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1answer
701 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
184 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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1k views

AFCI Circuit Breaker trips after turn on any light on different circuit

The last week an electrical service person came to update the circuit breakers from regular to AFCI. But they could not find the root of the problem and they will come again in one week but I wanted ...
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2answers
2k views

What could be causing AFCI breakers to keep tripping?

I recently had my basement remodeled by a general contractor. This included a bathroom, family room, wet bar, and home theater. The electrician added 4 circuits in total, all of them using arc fault ...
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3answers
242 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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2answers
2k 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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1answer
639 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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1answer
1k 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
725 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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2answers
631 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
1k 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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2answers
439 views

Could my power strip have killed all my AFCI's?

Odd thing happened today. My wife plugged a 1700W (clothes) iron into a power strip and tripped the AFCI to the bedroom. I reckon with the TV and 2 lamps running it peaked over 15A and tripped out. ...
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2answers
814 views

AFCI breaker tripped when there was no power to wire

I was wiring a ceiling fan in my new home, and I am not used to working with some of the newer electrical devices. I know very little about AFCI breakers, however I think I was somehow able to trip ...
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1answer
6k 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
410 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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1answer
2k 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
2k 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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1answer
200 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 ...