Lochinvar & A.O. Smith 100208405 Pressure Switch 328140-751 Operating at 230V and a

Operating at 230V and a nominal 1025 RPM

Check your regulator’s data plate

Durable Construction: Features a robust steel frame and aluminum flange for extended operational life

Replacing a warped or corroded blade with this genuine Trane FAN1251 ensures your system meets its original AMCA air performance ratings

this genuine Source1 part ensures the integrated control module communicates correctly with the system furnace board

Lochinvar & A.O. Smith 100208405 Pressure Switch 328140-751 Operating at 230V and aThe Lochinvar & A. O. Smith 100208405 Pressure Switch is a critical safety component designed for high efficiency condensing boilers and commercial water heaters. This OEM replacement pressure switch monitors the pressure differential within the combustion chamber or venting system to ensure safe operation. When the blower motor proof is established, the switch closes its contacts to allow the ignition sequence to proceed. If a blocked flue or