Lochinvar & A.O. Smith 100278133 Pilot Assembly 30067439-890 the Trane furnace control board

the Trane furnace control board sequences the inducer motor pre-purge

replacing the 36H32-403 and numerous EF-series valves

Four dedicated ports allow for simultaneous connection of multiple vacuum hoses and gauges

making it suitable for single-fixture

Lochinvar & A.O. Smith 100278133 Pilot Assembly 30067439-890 the Trane furnace control boardThe Lochinvar & A. O. Smith 100278133 Pilot Assembly is a critical combustion component for maintaining reliable ignition and flame sensing in high efficiency commercial and residential water heaters. As a factory authorized OEM heating part, the 100278133 ensures precise gas flow and millivolt output, securing the burner cycle against intermittent dropouts. This specific assembly serves as the updated, direct replacement for 100165902, featuring