Quote:
Originally Posted by DropIt
AFCIs are engineered to detect any type of electrical motor arcing which vacuums, especially ones with some wear on them, have been known to do. same with paper shredders, treadmills, etc.
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I've heard this is a bigger issue with the pre-2013 AFCIs and less of an issue with the post-2013 CAFCIs. That said, I heard that on contractor forums so it's just dudes bantering.