WHY DOES MY AFCI BREAKER TRIP ALMOST EVERY NIGHT AT 11PM

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cwowarii

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I have a 15A AFCI breaker in my panel for the room over the garage that trips almost every night around 11 or 11:30pm. This breaker powers a computer, tv, PS3, ceiling fan/light, and clock. The TV & PS3 were plugged into a surge protector strip and the computer was plugged into another strip on the other side of the room. Often what is on at the time it trips is the ceiling fan/light, computer, and clock. These items remain on all day so I'm not sure why it waits to 11pm to trip. No other breakers trip including a different AFCI in another panel.

The pool come on a couple times of day including around 12:30am and the only other thing that comes on around the 11:30pm time frame is the dishwasher. Last night I ran the dishwasher at 9pm and the afci did not trip.

I was going to replace the afci breaker or call an electrician but was trying to trouble shoot myself first.

I have attached pics of my panel. The breaker that says ROG is the one that keeps tripping.

Anyone have an idea of what it is? The home was built in 2010.
 

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