The Lochinvar & A.O. Smith 100074606 Fan Motor Indoor is a replacement blower motor designed to provide reliable airflow for compatible indoor HVAC and water heating equipment. It powers the fan assembly, circulating air efficiently through the system to support proper heat transfer and consistent performance. Commonly used in select Lochinvar and A.O. Smith heating units, this fan mo... https://www.partshnc.com/fan-motor-indoor-3