Joseph C Panguitch , UT November 02, 2020 Appliance: General Electric Free Standing Microwave JE1390WV01 Ge Microwave Je1390wv01: Microwave had power but would not cook. How to replace Thermostat, Magnetron. I replaced the fuse and the Thermostat, Magnetron. The fix was relatively easy. The hardest part was getting the microwave down to the table. After that, simple. Unfortunately, replacing these parts did not fix my issue. I think I will try next replacing the door switches next. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes