Rick L Livermore , CA March 12, 2022 Appliance: General Electric Microwave ZE2160SF04 Ge Microwave Ze2160sf04: Would not run at all. How to replace Micro Switch-Substitute. As the micro switches and door latch mechanisms show signs of wear ( not fully engaging because of that) not knowing exactly which one caused malfunction I replaced all of them. A very tight working area made this job a slow one. Once replaced, I was back to heating up lunch and coffee. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours