Jeremiah H Newcastle , OK April 04, 2020 Appliance: Whirlpool Microwave, Over-The-Range WMH31017AS4 Whirlpool Microwave Wmh31017as4: Light bulb base broken off in socket. How to replace Microwave Light Socket. Replaced socket. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes