Lochinvar & A.O. Smith 100108729 Pilot Freon offering the same footprint and

offering the same footprint and performance characteristics for seamless HVAC part replacement

Frequent tripping often indicates a dirty air filter

Oversized Outlet: The 1" FNPT discharge port reduces backpressure and ensures faster relief during activation

ensuring that the inducer motor is generating sufficient static pressure to vent combustion gases safely before allowing the ignition sequence to proceed

Ensure the seating surface is clean of debris before securing the new diaphragm to maintain an airtight seal

Lochinvar & A.O. Smith 100108729 Pilot Freon offering the same footprint andThe Lochinvar & A. O. Smith 100108729 Pilot is a precision engineered LP pilot assembly (model PB 5S) designed specifically for liquid propane fired water heaters and boilers. As a genuine OEM replacement part, it ensures direct compatibility with A. O. Smith GCV, XCV, and Lochinvar residential units where a stable pilot flame is critical for safe ignition. This pilot burner assembly includes the requisite orifice calibrated for LP gas pressure, a