Robert R Minneapolis , MN February 13, 2021 Appliance: Kenmore Microwave Oven 79080322310 Kenmore Microwave 79080322310: Microwave would trip a 20 amp breaker. When you opened the door, while heating something. How to replace Microwave Door Latch Hook Bracket. Checked all the switches and thermal breakers for operation and all checked good. I then took Gerald G's story to heart and replace the Door Latch and Latch Hook and BOOM problem solved. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours