I'm a home improvement novice at best so pardon the what might be simple question. I have an outlet that only has a microwave plugged in that keeps tripping. I assumed at first it was caused by the microwave since it was quite old. I replaced it and the new microwave causes the same issue. It will be fine for a few hours then out of nowhere just trips. The only other items plugged in (different outlets) in the kitchen are the stove and fridge. No issues w/them. Any help is appreciated.