The Lochinvar & A.O. Smith 100187877 Blower Assembly with Hall Sensor is a genuine replacement component designed for compatible high-efficiency condensing boilers and water heaters. It supplies the precise airflow required for proper combustion, while the integrated Hall sensor continuously monitors blower speed to ensure accurate operation and system safety. This assembly helps main... https://www.partshnc.com/blower-assembly-whall-sensor-3