Michael T Bothell , WA December 14, 2020 Appliance: General Electric Microwave Hood Combo JVM3160RF3SS Ge Microwave Jvm3160rf3ss: Blows main fuse in the microwave, if the door is opened when it is running. How to replace Latch Board. Replaced the worn latch board, 3 door switches and blown fuse. 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes