The 1 most common part(s) or condition(s) which cause the symptom Microwave not working are listed below starting with the most likely. Check or test each item and watch any available videos.
RepairClinic Item # 2096002
If the microwave is not working the main control board may be defective. This is not common. When a microwave stops working the problem is usually the line fuse or within the high voltage circuit; either the high voltage capacitor, diode, transformer or magnetron.