Thomas S Naples , FL February 01, 2026 Appliance: Jenn-Air Free Standing Microwave JMC8130DDW Jenn-Air Microwave Jmc8130ddw: No error code just stopped heating one day. How to replace Magnetron. Facing the microwave, I removed the right outer cover, then removed a small cover that had the magnetron, capacitor, transformers, etc. Just 5 screws to remove the magnetron. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes