Customer has circuit in basement that trips intermittently. I discovered it was on an arc fault breaker with a fridge plugged into the circuit. That coupled with trying to use a treadmill will cause arc fault breakers to trip. Customer also mentioned their sump pump GFCI tripped and flooded the basement a while back. And lastly, customer had breaker in panel that was not rated for that panel. See below for work performed to correct the before mentioned issues. Install audible GFCI for sump pump Install Correct breaker for BR panel Replace current arc fault with new arc fault breaker