Edward G M Chicago , IL February 27, 2019 Appliance: General Electric Free Standing Microwave JVM1850CH06 Ge Microwave Jvm1850ch06: It needed a new magnetron and I replaced the diode and the thermostat as well. How to replace Thermostat - 160/60. It was very straight forward, and it wasn't complicated as previously thought. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes