Can Arc Fault breakers trip from another room's issues?
We have three bedrooms which are on 3 arc fault breakers (home built in 2007). For the past couple of months, two of these three breakers have been tripping when there's a slight load on OTHER circuit. A hair dryer in the kitchen, washing machine running a load, oven preheating.
The oven control board actually did go out. But twice, the oven was heating up or in the process of cooking, and a bedroom arc fault breaker tripped. Oven went out, and we saw it happening when using a hair dryer in the kitchen. We can't reproduce it, as it's only happened a handful of times over the past two months.
An older master electrician came out this morning and said that nothing was loose in the breaker boxes and we'd have to go to each receptacle and connection in those circuits because it's likely a loose wire causing the trips. Does that make sense? Would that be the case for two rooms at the same time? Could our oven control board going out have caused the initial problems and now it's a loose wire? I don't really know which direction to go now.
By the way, the electrician was super nice and didn't charge me a dime since he couldn't do much.