Microwave not heating? A failed high-voltage capacitor prevents the magnetron from working. Requires discharging and wall unit removal to replace.
Do-It-Yourself Stories from Customers like You
Microwave oven was not heating Scott S. • Charlotte , NC • June 20, 2017
I ordered the capacitor, diode, and magnetron in hopes that I would be able to complete the repair using the less expensive parts. I first removed the oven from the wall and then I removed the metal housing to access the internal parts. I discharged the capacitor using a pair of insulated needle nose pliers. Then I changed out the diode and the capacitor and reassembled the unit and tested it. It still did not heat so I disassembled the unit again and replaced the magnetron this time....
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