Dirk H Tijeras , NM November 23, 2017 Appliance: Model KITCHEN AID The microwave would not heat. The microwave would not heat.After receiving the magnetron and the diode I replaced both of these. Making sure that I had discharged the capacitor. It was an easy fix and saved about a $350 service call. 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes