Thermal Protection: Actively pulls heat away from the inducer motor

Ensures a high-integrity seal with the included precision Resideo O-ring to prevent system pressure drops

offering high-torque output and energy-efficient holding power

maintaining the correct temperature rise across the heat exchanger

Extreme Durability: The die-cast aluminum construction provides superior corrosion resistance and structural integrity in demanding mechanical room environments

Lochinvar & A.O. Smith 100111056 Prover Switch 322838-753 Thermal Protection: Actively pulls heatThe Lochinvar & A. O. Smith 100111056 Blower Prover Switch is a critical safety component engineered for precise airflow monitoring in high efficiency commercial gas water heaters. As a direct replacement for the NS2 0544 00 air pressure switch, this assembly ensures the inducer fan effectively clears combustion gases before the ignition sequence initiates. This OEM replacement part is built with a rugged pneumatic diaphragm that converts pressure