David C Libby , MT January 26, 2016 Appliance: General Electric Free Standing Microwave JES1451WJ02 Ge Microwave Jes1451wj02: Microwave had no heat. How to replace Magnetron. Replaced magnetron. Required special driver for 4 screws securing cover. Remaining fasteners were Phillips head. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes