Whitney B Sapulpa , OK April 07, 2020 Appliance: Jenn-Air Free Standing Microwave JMC8130DDS Jenn-Air Microwave Jmc8130dds: Microwave not heating. How to replace Magnetron. Magnetron was what we needed. Total maybe 1 hour and we are NOT pros. Easy fix and we are back up and running. Ordered the part Friday afternoon and had it Saturday. Thank you! Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes