The Fan Motor is an OEM part compatible with Whirlpool microwave ovens. It is a crucial component responsible for circulating air and ventilating the interior of the microwave during operation. The fan motor ensures proper air flow, which helps regulate temperature and prevent overheating. Symptoms of a bad Fan Motor include: Inadequate ventilation or poor air circulation within the microwave Overheating issues or unusual odors during use Excessive noise or rattling sounds coming from the fan area Complete failure of the fan to operate or turn on Causes of a bad fan motor can range from bearing failure due to wear and tear over time, to physical damage from impact or debris buildup. Electrical issues, such as voltage fluctuations or component failures, can also contribute to the malfunction of the fan motor. This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore microwave models.W11344874 (AP6874137) replaces W10330572, W10838964, 461968969271, W11131760.