Thomas Z Aurora , CO May 04, 2018 Burned out bulb in a corroded receptacle lamp. Broke the receptacle lamp when removing corroded bulb. Removed cover off bottom of microwave to access bulb and receptacle. replaced with new receptacle and bulb. The problem existed only because the bulb was corroded. 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes