Mark M Herndon , VA April 01, 2017 Appliance: Maytag Microwave - Convection MMV6178AAS Maytag Microwave Mmv6178aas: Microwave turntable turned little or not at all. How to replace Motor-Turn. It is a simple repair. Unplug the microwave, unscrew the bottom of the microwave, detach the light, disconnect the light, unscrew the old motor, replace with the new motor, and then put it all back together. Took 20 minutes or so. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes