The Microwave Turntable Motor is an OEM replacement part for LG over-the-range microwaves. This motor is responsible for powering the turntable inside the microwave cavity, ensuring even heating and cooking of food items.   Symptoms of a bad motor include:  The turntable not spinning or turning intermittently Loud buzzing or grinding noises coming from the microwave interior The turntable spinning but not evenly or at the proper speed Smoke or burning smells coming from the microwave Causes of a bad motor can include normal wear and tear over extended use, residue or debris buildup interfering with operation, or failure of internal motor components.6549W1S013K (AP4650099) replaces 1352890, AH3529217, EA3529217, PS3529217.