Lochinvar & A.O. Smith 100327118 Pilot Assembly

As a seasoned technician, you know that a reliable ignition sequence is the backbone of any high-performance water heater or boiler. The Lochinvar & A.O. Smith 100327118 Pilot Assembly is a critical OEM component designed to ensure precise flame sensing and consistent burner ignition in residential gas water heaters and commercial boilers. This assembly is the direct replacement for PLT1217 and 100165867, making it a staple for maintaining FVIR gas water heater systems. Built for durability, it features a high-quality thermocouple and a robust pilot burner designed to withstand the thermal stress of continuous operation. Whether you are servicing a Lochinvar Copper-Fin or an A.O. Smith residential unit, this natural gas pilot assembly provides the exact millivolt output required for the gas control valve to function without nuisance dropouts. Relying on an OEM replacement part like the 100327118 ensures that the pilot flame safety protocols remain intact, protecting your client's equipment from improper combustion cycles.

• Direct Fit Compatibility: Seamlessly replaces PLT1217 and 100165867, eliminating the need for field modifications.
• Precision Flame Sensing: The integrated pilot assembly thermocouple provides stable millivolt signals to the gas valve for reliable operation.
• OEM Standards: Engineered by Lochinvar & A.O. Smith to meet exact factory specifications for natural gas applications.
• FVIR Compliant: Maintains the integrity of the Flammable Vapor Ignition Resistant system in modern gas water heaters.

Is this pilot assembly compatible with LP (Propane) units?
This specific 100327118 model is configured for natural gas pilot burner applications. For LP conversions, verify the orifice size and use the manufacturer-specified assembly for propane.

What are the signs that my current pilot assembly is failing?
Common symptoms include the pilot not staying lit after releasing the gas control knob, inconsistent sparking from the igniter, or the thermocouple failing to generate the 20-30mv required to hold the safety valve open.

Is this a complete kit for installation?
Yes, it typically includes the pilot tube, thermocouple, and electrode needed to restore the ignition system without harvesting parts from the old unit.

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.