Marc M Pittsfield , MA November 17, 2018 Appliance: Jenn-Air Over The Range Microwave JMV8208AAS Jenn-Air Microwave Jmv8208aas: All electrical functions stopped working except for the sparker for the gas cook top. How to replace Microwave Charcoal Filter. Replaced the oven control board. After reading many reviews and information about the same problem, I decided to give it a go and replace the control board myself with the help of my wife. Saved from at least $100 or more on calling a repair service. Plus my experience with repair services is when the unit is 10 years old or more, they always tell you it not repairable and time to buy a new one. We looked for a comparable model, but a dual fuel double oven model in a 30" range could not be found and we really liked this range so it was worth the fix and we are back up can running just before the holidays. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes