Jorge M Miami , FL April 20, 2015 Appliance: General Electric Microwave ZE2160SF04 Ge Microwave Ze2160sf04: Microwave wasn't on even when plugged into main socket. How to replace Primary And Secondary Door Switch. The primary switch and the fuse were replaced. 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes