I assumed it was the Magnetron, took off the cover, found the exact match for the magnetron on your website, chatted with your consultant, ordered it, got it 3 days, put it in the microwave, and we are back in business. Time of repair, 30 min. to take get the cover off (didn't have right tools for the "security" star drive screws, had to knock off the posts), 15 min. to put it back together.