Jerry C Grand Jct , CO September 26, 2015 Thermo fuse bad Removed microwave from wall, disassembled and located the fuse. Ordered replacement based on model number. APP.com site was easy to use, located the part and arrived in three days as promised. My go-to appliance parts store from now on. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes