Lochinvar & A.O. Smith 100167770 Control Board 319847-401 the fan motor failing to

the fan motor failing to start without manual assistance

reliable operation in both residential and light commercial applications

technicians rely on this sensor to resolve common HVAC ignition lockout issues caused by carbon buildup or high-temperature oxidation on the sensing rod

This mercury-free mechanical thermostat utilizes rugged snap-action contacts to provide reliable switching for gas

Lochinvar & A.O. Smith 100167770 Control Board 319847-401 the fan motor failing toThe Lochinvar & A. O. Smith 100167770 Control Board is a critical integrated control board engineered for high efficiency commercial gas water heaters and condensing boilers. As an OEM replacement control module, it manages the complex sequence of operations for Lochinvar Knight and A. O. Smith Cyclone series units. This HVAC control board interfaces directly with the blower motor, gas valve, and spark igniter to ensure precise combustion and thermal