Robert K Makawao , HI January 01, 2015 Microwave stopped getting hot appliance repair store wanted $320 00 to replace the magnetron so i looked at how much appliance parts pros com charged for the part and saved about $160 00 Took the case off the Microwave unpluged the Magnetron took off 4 screws insert new Magnetron replace four screws plug in and put case back on. total repair time 10 min. saved alot of MONEY 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes