Lochinvar & A.O. Smith 100093810 Switch 319848-301 which is critical for preventing

which is critical for preventing coil freeze-up or maintaining ventilation

ensuring efficient moisture removal and energy regulation

maintaining the specific timing requirements for pre-purge and post-purge cycles necessary for heat exchanger longevity and indoor air quality

System Protection: Critical for early detection of low evaporator pressure or potential oil level switch failure in screw and centrifugal units

PSC Efficiency: The Permanent Split Capacitor design offers high electrical efficiency and simplified wiring for fast field installation

Lochinvar & A.O. Smith 100093810 Switch 319848-301 which is critical for preventingThe Lochinvar & A. O. Smith 100093810 Switch is a critical safety component designed specifically for natural gas water heaters, including the high volume FG40T34 residential model. As a primary water heater door switch, this part functions as an electrochemical interlock, ensuring the burner assembly only receives fuel when the access door is fully seated and secured. This OEM replacement part is engineered to meet the precise tolerances of Lochinvar