Paul W Carthage , NY September 23, 2018 Appliance: General Electric Free Standing Microwave JVM1871SK03 Ge Microwave Jvm1871sk03: Microwave stopped heating. How to replace High Voltage Diode. Looked online for self help. Ordered Magnetron, Diode and fuse. Started with Magnetron. Took out old one after disassembling. Putting in new one was a bit of a problem, but eventually got it in. Hooked back up, and it worked. 14 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes