Michael L Minneapolis , MN November 30, 2016 Microwave stopped working it made a loud hum and smelled faintly of ozone I replaced the magnetron and diode. I don't know if the diode was bad, but since the majority of the work was taking the case apart, I figured it was easier to do it at the same time as the magnetron. The replacement magnetron I received was dented at the emitter end, but seems to work fine. It was a bit intimidating to work on a microwave with all the warning stickers on the cabinet, but the replacement went smoothly - the biggest difficulty was determining how to remove the panels of the case (it is a combination oven/microwave oven) without disassembling the entire unit. Read More... 13 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 2+ hours Tools: Screwdrivers
Phillip B Sterling , OH September 07, 2016 Smell and loud deep noise coming from microwave electronic burning smell Pulled out oven and microwave combo from the cabinetry. Remove side rails in the front. Remove oven door for ease of movement. Be sure to support oven well. Carefully remove cover of microwave on right hand side (will need a small torx driver to remove screws on inner cover). Discharge capacitor with well insulated screw driver (DO NOT DO IF YOU DON'T KNOW WHAT YOU ARE DOING). Need another torx driver, slightly larger, to remove the magnetron. Magnetron easy to remove and install but time consuming to get to. Fixed the problem. Read More... 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours Tools: Pliers, Screwdrivers
Antonio F Miami , FL June 08, 2018 Appliance: Model KEMC378KSSO Humming sound and burnt smell I measured the resistance between the two connectors on the magnetron: should be close to zero ohms and it was. I measured between the same connectors and the metal case: should be mega ohms, it was 15k ohms. That is a bad, partly shorted unit. I also checked the resistance of the thermal cut off, which should be zero but was 10 ohms so I replaced. The HV diode is checked with a 9 V battery (YouTube checking microwave HV diode) and it too was bad. Make sure to take pictures as you disassemble the unit as I had a few leftover screws. Unit is working great now. Read More... 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes Tools: Screwdrivers
Robert H Montrose , CO December 18, 2022 Appliance: Model MEHC309JSS05 Microwave stopped working. Replaced Magnetron and Diode. The Diode was still good, but while in there it seemed like a good investment to replace it. Read More... Do-It-Yourself Rating: Repair Time Estimate: 2+ hours Tools: Screwdrivers
Pedro D Miami , FL January 08, 2020 Appliance: KitchenAid 30" Built-In Electric Double Oven Thermal Convection Lower Microwave Convection KEMC308KSS01 Microwave not heating. Replaced the Magnetron and Diode. Read More... Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours Tools: Pliers, Screwdrivers