Ellis L Bayfield , CO October 18, 2015 Appliance: Jenn-Air Free Standing Microwave JMC8130DDS Jenn-Air Microwave Jmc8130dds: Jmc 8130dds microwave did not heat. How to replace Magnetron. Replaced the magnetron and diode Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes