Lochinvar & A.O. Smith 100109804 Burner Assembly

When you're dealing with ignition failures or erratic flame signals in Lochinvar or A.O. Smith commercial systems, verifying the integrity of the 100109804 Burner Assembly is a foundational diagnostic step. This natural gas pilot burner assembly is engineered for precision ignition, utilizing a robust pilot electrode and flame sensor configuration to ensure reliable combustion cycles in high-demand hot water heaters and boilers. As an OEM replacement burner part, it maintains the critical tolerances required for HVAC chemical safety and combustion efficiency, preventing common issues like gas buildup or delayed ignition that can lead to system lockouts.

The assembly is a direct-fit component designed to withstand the thermal stresses of continuous pilot applications. In residential gas water heaters and larger commercial units, consistent pilot performance is essential for the longevity of the heat exchanger and gas valve. By installing this genuine Lochinvar burner assembly, you ensure that the millivolt signal or electronic flame rectification remains within the manufacturer’s specified range, providing the reliable ignition control necessary for uninterrupted domestic hot water delivery and space heating performance in demanding environments.

• Optimized Ignition Reliability: Engineered for natural gas systems to provide a stable pilot flame, reducing ignition-related service calls and system downtime.
• OEM Compatibility: Guaranteed fit for specific Lochinvar and A.O. Smith models, ensuring that all technical specifications and safety protocols are met without field modifications.
• Enhanced Combustion Safety: Precision-aligned pilot burner components minimize the risk of carbon buildup and improper flame sensing, protecting the main burner tray.
• Durable Construction: Built with high-grade alloys to resist oxidation and heat-induced degradation in high-temperature combustion chambers.

What are the signs of a failing 100109804 burner assembly?
Technicians typically observe intermittent pilot outages, soot accumulation around the pilot orifice, or a weak flame that fails to provide sufficient rectification current to the ignition module.

Is this assembly compatible with propane (LP) units?
No, this specific part is calibrated for natural gas. Using it in an LP application without the proper orifice conversion can lead to hazardous combustion conditions and equipment damage.

Does the assembly include the mounting gasket?
Standard 100109804 kits focus on the pilot burner assembly itself. We recommend checking the condition of the existing mounting interface and replacing any compressed gaskets to ensure a gas-tight seal.

This item is not eligible for free shipping.

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.