Approx. one week ago I had the AFCI breaker for my bedroom circuit trip. I took apart all the fixtures and receptacles and put them back together. I noticed nothing wrong with the installation. The AFCI breaker is only one month old. When I turned it back on, everything was fine. Should I be worried?

 

Worried? No. Attentive? Yes.

AFCI breakers are still new. As such they are sometimes troublesome. Nuisance trips are common.

Did you try resetting the breaker before you took everything apart? I suggest just keeping an eye on things. if the same breaker continues to trip then you will need to do some investigating, but until and unless that happens just watch for further trips.

 

And you're sure it wasn't an overcurrent trip? Did you reset it before doing all this rebuilding, and it kept tripping?