Lochinvar & A.O. Smith 100109928 Pilot Burner

Maintain peak combustion efficiency with the Lochinvar & A.O. Smith 100109928 Pilot Burner, a precision-engineered OEM replacement part designed for reliable ignition in LP (Liquid Propane) fuel systems. This pilot assembly is built for durability, featuring high-grade metallurgy to withstand the rigorous thermal cycles of commercial water heaters and gas-fired boilers. As a critical component of the ignition sequence, it ensures a stable, consistent flame required to safely engage the main burner, preventing nuisance lockouts and HVAC system troubleshooting delays. This unit is a direct replacement for Lochinvar equipment and A.O. Smith part number 9004542215, specifically engineered for compatibility with Model BTC-120 through 500A series 970 and newer commercial units, as well as select CGL series water heaters. Replacing a fouled or degraded pilot assembly is essential for preventing carbon buildup and maintaining the voltage throughput required for modern flame sensors. For contractors performing furnace pilot light repair or routine boiler maintenance, utilizing a genuine 100109928 LP Pilot Burner ensures a precise fit and factory-spec performance, minimizing call-backs and optimizing propane gas valve ignition stability.

• OEM Compatibility: Exact replacement for Lochinvar and A.O. Smith 100109928 and 9004542215, ensuring consistent orifice alignment.
• Fuel Precision: Specifically calibrated for Liquid Propane (LP) applications to provide the correct air-to-fuel ratio for a stable pilot flame.
• Heavy-Duty Construction: Manufactured with heat-resistant materials to resist oxidation and prolong the life of the pilot assembly in high-demand commercial environments.
• Optimized Ignition: Designed to provide reliable carry-over for immediate main burner ignition, enhancing overall system safety.

Is the 100109928 pilot burner compatible with Natural Gas systems?
No, this specific part number is strictly for Liquid Propane (LP) units. Using an LP pilot in a Natural Gas system will result in incorrect flame characteristics and potentially hazardous operation.

Why is my commercial water heater experiencing intermittent pilot outages?
Common causes include a clogged pilot orifice, carbon buildup on the assembly, or an aging pilot burner that can no longer maintain a stable flame. Replacing the assembly with the OEM 100109928 often resolves these ignition failures.

What A.O. Smith models does this pilot assembly fit?
This part is widely used in high-capacity A.O. Smith BTC-120 through 500A series (970 and up) and various Lochinvar commercial water heater models.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.