I have a very unusual set of electrical issues that have proven difficult to troubleshoot.
I live in a newly constructed house. Each bedroom has AFCI breakers.
In the past 3 years living there, the AFCI breaker to my bedroom has tripped about a dozen times. All occur sometime in the middle of the night. Each time, resetting the breaker has resolved the problem. Sometimes the breaker will trip when the 1000W Lutron Dummer is turned on. Sometimes it trips while we are asleep.
I have noticed that when the breaker trips the "Arc" light is not activated which I believe means the AFCI breaker tripped due to a ground fault?
Interestingly, almost every time this has occured, two GFCI outlets, one in our kitchen and one in our garage has also tripped, but with much less frequency. In our case this has happened 4 times in 3 years (1-2 times a year). Each GFCI outlet is on a different circuit in this case. The GFCI outlets do not trip if the AFCI breaker doesn't trip.
Also, one GFCI circuit is in a different panel than the other one.
I could replace the AFCI breaker and the 2 offending outlets. Is there something else I should be looking for?
The only thing that I can think of that would cause this problem is something temperature related or perhaps some kind of surge? is that possible?
Things I have heard that can cause an AFCI breaker to trip:
- Stack of AFCI breakers in the electrical panel over heating (I have 4 in a row, with Master Bedroom in the middle
- Dimmer (something about Lutron)
- Pinched or stapled electrical wire(would this just cause it to trip consistently though)
- Charging electrical gizmos
Things I have heard that can cause a GFCI breaker to trip
- Variations in supply voltage
- Unbalanced, intermitant loads (I don't have any)
- Cheap surge protectors
Things I have heard that can cause an AFCI and a GFCI breaker to trip
- Cheap surge protectors (I have a few surge protectors on each AFCI and GFCI outlets that are tripping). I'm not sure I'd consider them "cheap".
Could any of this be upstream from me?