AFCI/panel questions.......

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vwcilon
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AFCI/panel questions.......

Post by vwcilon » Tue Apr 23, 2019 11:56 am

So I installed a new panel for my mother in-law. She had an old panel and somebody had added a pony panel at some point. It was a mess to say the least. I installed a Schneider Homeline panel and all is very much neater both outside and inside the box. The panel came as a kit, so it had a bunch of breakers with it including a few 15 amp AFCI's. One of the circuits that I used an AFCI on tripped the breaker instantly. The same circuit was fine before on a normal breaker in the old panel and also fine in the new panel with a normal breaker. Anything to worry about here?? Or can I chalk it up to the possible finicky nature of AFCI's that I have read about.

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Aaron
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Re: AFCI/panel questions.......

Post by Aaron » Tue Apr 23, 2019 12:25 pm

Did it only trip once, or does it keep tripping?

vwcilon
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Re: AFCI/panel questions.......

Post by vwcilon » Tue Apr 23, 2019 12:43 pm

It keeps tripping. The circuit has 3 ceiling mounted lights, some plug ins one of which is running a refridgerator. I think a wall was removed at some point as there is an odd shaped pillar with a couple plug ins and a light switch on it, as well as a junction box with a blank plate over it.

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Aaron
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Re: AFCI/panel questions.......

Post by Aaron » Tue Apr 23, 2019 2:02 pm

I might try unplugging everything from the circuit and turn it back on. Then have someone plug things in one by one to see what causes a trip.

vwcilon
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Re: AFCI/panel questions.......

Post by vwcilon » Tue Apr 23, 2019 4:16 pm

I read that shared neutrals causes afci's to trip. I haven't explored yet, but id bet there is some of that going on in that house.

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emtnut
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Re: AFCI/panel questions.......

Post by emtnut » Tue Apr 23, 2019 6:28 pm

vwcilon wrote:
Tue Apr 23, 2019 4:16 pm
I read that shared neutrals causes afci's to trip. I haven't explored yet, but id bet there is some of that going on in that house.
A quick way to check for a shared neutral is to power down the circuit, and remove the neutral from the neutral bar. Use a multimeter on ohms mode, and measure from the disconnected neutral and ground. If there is continuity, then you know there is either a neutral ground short or shared neutral.

There is a possibility that the fridge is causing the breaker to trip ... following Aarons advice would confirm this.
~~ Ford Ford Ford Ford Ford Ford :mrgreen: ~~

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Aaron
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Re: AFCI/panel questions.......

Post by Aaron » Tue Apr 23, 2019 10:32 pm

How old of a fridge would have this issue?!!

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emtnut
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Re: AFCI/panel questions.......

Post by emtnut » Thu Apr 25, 2019 9:45 am

Aaron wrote:
Tue Apr 23, 2019 10:32 pm
How old of a fridge would have this issue?!!
Sometimes new out of the box ! Others when they get older ... and everything in between :mrgreen:

Sometimes a wiring issue, but generally it's the compressor motor windings
~~ Ford Ford Ford Ford Ford Ford :mrgreen: ~~

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Aaron
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Re: AFCI/panel questions.......

Post by Aaron » Thu Apr 25, 2019 10:17 pm

AFCI: Annoying Frightening Circuit Interference

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