Joan N Portland , OR October 16, 2016 Appliance: KitchenAid Microwave-Countertop KCMC155JSS0 Kitchenaid Microwave Kcmc155jss0: Kitchenaid microwave plate stopped turning. How to replace Circulating Motor (Air Circulation Motor). Turned the microwave on its back. Took a hammer and screwdriver to punch out the small access door for the motor, unscrewed two screws holding the motor and unplugged the the wiring harness. Attached the new motor with the two screws and plugged the wiring harness back on. Finally, attach the access door with the screw. It took longer to punch out the access door than to actually install the motor. 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes