Richard S Lakewood , CA February 07, 2022 Appliance: General Electric Microwave JVM1750DM1WW Ge Microwave Jvm1750dm1ww: While in use it stopped running. How to replace Thermostat. I found a blown fuse and an open thermostat, which I ordered. The new thermostat tested open as well. I called AppliancePartsPros.com and they informed me that it was a "normally open" thermostat that would close and turn on a fan if the unit got too hot. So, I continued with the diagnosis and found an open diode and a shorted electrolytic capacitor. I was able to obtain those parts locally. With a new fuse, diode, and capacitor installed, the microwave was once again operational. I appreciate the technical support from Appliance Parts Pros. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes