He came out to investigate an issue with a breaker repeatedly tripping. This breaker is tripping randomly, which is the sign that this breaker has gone bad. We checked the amperage on your refrigerator freezer and coffee maker and you should have plenty of power for this breaker. We do usually require a dedicated circuit for your refrigerator however, you seem to have enough power. We replaced your Arc fault breaker with a new breaker. It looks like you got these art faults all at the same general time and those used to be much more fragile so if more start tripping randomly, they will need to be replaced.