Lochinvar & A.O. Smith 100271883 Pressure Switch 321042-401 offering a drop-in fit for

offering a drop-in fit for popular furnace models including the GPND025 and GPND030 series

which often indicate worn bearings

Technician-Ready: Includes all necessary bracket hardware for a 30-second heat-up profile

providing a stable platform that prevents the flex and shifting often seen with universal aftermarket alternatives

While designed as an OEM Goodman Amana part

Lochinvar & A.O. Smith 100271883 Pressure Switch 321042-401 offering a drop-in fit forMaintain peak combustion safety with the Lochinvar & A. O. Smith 100271883 Pressure Switch, a critical OEM component designed for low gas pressure monitoring. As a veteran grade K low gas pressure switch, this device acts as an essential safety interlock, continuously sensing the inlet gas supply to ensure it meets the minimum operational threshold of approximately 3. 1" W. C. If the supply pressure drops below the setpoint, the internal contacts