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Electrical help - arc fault circuit interrupting breaker doesn’t always want to reset.

Posted on 11/20/25 at 7:00 pm
Posted by Theduckhunter
South Louisiana
Member since May 2022
1331 posts
Posted on 11/20/25 at 7:00 pm
I have this breaker: https://www.lowes.com/pd/Square-D-Homeline-20-Amp-1-Pole-Combination-Arc-Fault-Circuit-Breaker/3364904

Cleco has had some random power outages in the past few months and multiple breakers have tripped. This one doesn’t seem to want to reset immediately. The house is 4 years old. We’ve got quite a few things running on that circuit, but have never had an issue with it tripping due to an overload, just during a fair weather power outage. I have 3 Sonos amps running on this circuit. Even though they’re not playing any music, unplugging one seems to allow the breaker to be reset.

My question is, is it possible that I’ve just got too much running on this circuit to reset the breaker? Or is the breaker possibly wearing out and acting up?
Posted by baseballmind1212
Missouri City
Member since Feb 2011
3378 posts
Posted on 11/20/25 at 8:47 pm to
Sounds like you are at or near peak amperage allowance.

It's like a sub par breaker. If you have the same breakers in the same panel, and aren't experiencing any issues, then you probably need to swap it out.

Sounds like you have load tested it. If you don't want to pay for a new one, try swapping another arc fault breaker in the panel. If it results in the same issues, then the load is the problem.
Posted by IceTea20
Williamsburg, VA
Member since Nov 2010
78 posts
Posted on 11/20/25 at 9:05 pm to
If you have any cheap TEMU electronics or cell phone charger "blocks" start with removing those first.

I'm a RE agent and sit alot of home inspections. When we have problems testing those breakers its almost always one of those two things on newer homes.

Good luck!
Posted by T-Jon
Member since Jan 2012
96 posts
Posted on 11/20/25 at 9:29 pm to
Roughly calculate your amp load. If it’s less than 80% of the breaker rating, replace the breaker. GF/AF breakers seem to go bad often. Especially with power surges.
This post was edited on 11/20/25 at 9:31 pm
Posted by Turnblad85
Member since Sep 2022
4322 posts
Posted on 11/21/25 at 3:30 am to
Much more likely it's a breaker going bad than an overloading issue. Afci and GFCI have a lot more going on inside them than standard breakers and thus more to fail.


Some devices will trip an afci even though the breaker may otherwise function fine. I. E. I can't run a particular vacuum on my bedroom circuit or it will trip the afci. Everything else in bedroom doesn't give it problems. Afci are finicky.
Posted by Clames
Member since Oct 2010
18818 posts
Posted on 11/21/25 at 9:19 am to
AFCI's also trip due to shared neutrals which is probably the most common form of nuisance tripping with them. Unfortunately there aren't many good options to test/narrow down that issue unless you are lucky enough to own certain circuit testing tools. Bootleg grounds are also an issue for nuisance tripping AFCI's but not as common as they used to be.
This post was edited on 11/21/25 at 9:20 am
Posted by Spankum
Miss-sippi
Member since Jan 2007
60341 posts
Posted on 11/21/25 at 12:29 pm to
I have found breakers and GFCI outlets to be crap, nowadays. Personally, I would buy and replace the breaker. If it is still acting up, put the old one back in and call an electrician.


ETA: Are you killing any ducks?!
This post was edited on 11/21/25 at 12:31 pm
Posted by Theduckhunter
South Louisiana
Member since May 2022
1331 posts
Posted on 11/21/25 at 12:34 pm to
quote:

ETA: Are you killing any ducks?!


I’ve had to work but they have killed quite a bit of teal at the lease south of Houma.

Thanks to everyone who replied, I appreciate it!
This post was edited on 11/21/25 at 12:36 pm
Posted by Tadey
Baton Rouge
Member since Aug 2012
654 posts
Posted on 11/25/25 at 8:58 am to
This is the answer. Get rid of that shitty/finnicky breaker and put in a standard breaker and 90% chance everything will work like it should after that. If not, call an electrician.
Posted by fightin tigers
Downtown Prairieville
Member since Mar 2008
76083 posts
Posted on 11/25/25 at 2:19 pm to
my thread from a few years ago chasing this problem.

Go buy a new arc fault breaker and change it out. See if the problem persists.

If it does start removing items from the system until you find it.
This post was edited on 11/25/25 at 2:32 pm
Posted by LuckySo-n-So
Member since Jul 2005
22441 posts
Posted on 11/25/25 at 3:58 pm to
frick arc fault breakers. Now that the NEC requires AFCI/GFCI and AFCI breakers almost everywhere, the cost for breakers in a new build or renovation (permitted) has gone up ten times. Just finished a big reno, and I’ve had to replace at least ten or twelve of those frickers because of nuisance tripping. Spent $4k+ on breakers. frick those bastards.
This post was edited on 11/25/25 at 3:59 pm
Posted by Spankum
Miss-sippi
Member since Jan 2007
60341 posts
Posted on 11/28/25 at 10:17 am to
quote:

Spent $4k+ on breakers



Holy shite…I never thought about this!
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