
Lochinvar & A.O. Smith 100077874 Pilot Burner
The Lochinvar & A.O. Smith 100077874 Pilot Burner is a critical OEM replacement component designed for precision ignition and flame sensing in natural gas commercial water heaters and boilers. This genuine Lochinvar pilot assembly features a robust bracket design and precise orifice sizing to ensure a stable pilot flame, preventing nuisance lockouts and soft lockout error codes often associated with worn or soot-clogged burners. Engineered for compatibility with specific A.O. Smith Cyclone and Lochinvar Knight series models, this natural gas pilot burner facilitates reliable main burner ignition while maintaining high-signal feedback to the flame rectification circuit. When performing preventative maintenance on high-efficiency boilers, replacing a degraded pilot assembly ensures optimal thermal efficiency and prevents unnecessary wear on the ignition control module. This HVAC replacement part is built to withstand high combustion chamber temperatures, ensuring long-term flame signal stability for demanding commercial heating systems.
Key Benefits for Contractors:- Direct OEM Replacement: Ensures exact fitment and alignment for A.O. Smith 100077874 specifications, reducing labor time during installation.
- Enhanced Reliability: Minimizes erratic flame signals and thermocouple failures that cause intermittent system shutdowns.
- Optimized Combustion: Precision-drilled orifice provides the correct gas-to-air ratio for a clean, stable natural gas pilot flame.
- Heavy-Duty Construction: Built with high-grade alloys to resist oxidation and carbon buildup in high-use commercial applications.
- Will this pilot burner fix a 'no flame' error? If your boiler flame sensor signal is below the required microamp threshold, replacing the 100077874 assembly often resolves the issue provided the gas valve and control board are functional.
- Is this compatible with LP gas units? No, this specific part is calibrated for Natural Gas pilot assemblies. Using it with propane requires a different orifice size to avoid unsafe combustion.
- Does this include the ignition electrode? This assembly typically includes the integrated pilot hood and electrode required for standard field replacement on supported Lochinvar units.
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.
Lochinvar & A.O. Smith 100077874 Pilot Burner
The Lochinvar & A.O. Smith 100077874 Pilot Burner is a critical OEM replacement component designed for precision ignition and flame sensing in natural gas commercial water heaters and boilers. This genuine Lochinvar pilot assembly features a robust bracket design and precise orifice sizing to ensure a stable pilot flame, preventing nuisance lockouts and soft lockout error codes often associated with worn or soot-clogged burners. Engineered for compatibility with specific A.O. Smith Cyclone and Lochinvar Knight series models, this natural gas pilot burner facilitates reliable main burner ignition while maintaining high-signal feedback to the flame rectification circuit. When performing preventative maintenance on high-efficiency boilers, replacing a degraded pilot assembly ensures optimal thermal efficiency and prevents unnecessary wear on the ignition control module. This HVAC replacement part is built to withstand high combustion chamber temperatures, ensuring long-term flame signal stability for demanding commercial heating systems.
Key Benefits for Contractors:- Direct OEM Replacement: Ensures exact fitment and alignment for A.O. Smith 100077874 specifications, reducing labor time during installation.
- Enhanced Reliability: Minimizes erratic flame signals and thermocouple failures that cause intermittent system shutdowns.
- Optimized Combustion: Precision-drilled orifice provides the correct gas-to-air ratio for a clean, stable natural gas pilot flame.
- Heavy-Duty Construction: Built with high-grade alloys to resist oxidation and carbon buildup in high-use commercial applications.
- Will this pilot burner fix a 'no flame' error? If your boiler flame sensor signal is below the required microamp threshold, replacing the 100077874 assembly often resolves the issue provided the gas valve and control board are functional.
- Is this compatible with LP gas units? No, this specific part is calibrated for Natural Gas pilot assemblies. Using it with propane requires a different orifice size to avoid unsafe combustion.
- Does this include the ignition electrode? This assembly typically includes the integrated pilot hood and electrode required for standard field replacement on supported Lochinvar units.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Lochinvar & A.O. Smith 100077874 Pilot Burner is a critical OEM replacement component designed for precision ignition and flame sensing in natural gas commercial water heaters and boilers. This genuine Lochinvar pilot assembly features a robust bracket design and precise orifice sizing to ensure a stable pilot flame, preventing nuisance lockouts and soft lockout error codes often associated with worn or soot-clogged burners. Engineered for compatibility with specific A.O. Smith Cyclone and Lochinvar Knight series models, this natural gas pilot burner facilitates reliable main burner ignition while maintaining high-signal feedback to the flame rectification circuit. When performing preventative maintenance on high-efficiency boilers, replacing a degraded pilot assembly ensures optimal thermal efficiency and prevents unnecessary wear on the ignition control module. This HVAC replacement part is built to withstand high combustion chamber temperatures, ensuring long-term flame signal stability for demanding commercial heating systems.
Key Benefits for Contractors:- Direct OEM Replacement: Ensures exact fitment and alignment for A.O. Smith 100077874 specifications, reducing labor time during installation.
- Enhanced Reliability: Minimizes erratic flame signals and thermocouple failures that cause intermittent system shutdowns.
- Optimized Combustion: Precision-drilled orifice provides the correct gas-to-air ratio for a clean, stable natural gas pilot flame.
- Heavy-Duty Construction: Built with high-grade alloys to resist oxidation and carbon buildup in high-use commercial applications.
- Will this pilot burner fix a 'no flame' error? If your boiler flame sensor signal is below the required microamp threshold, replacing the 100077874 assembly often resolves the issue provided the gas valve and control board are functional.
- Is this compatible with LP gas units? No, this specific part is calibrated for Natural Gas pilot assemblies. Using it with propane requires a different orifice size to avoid unsafe combustion.
- Does this include the ignition electrode? This assembly typically includes the integrated pilot hood and electrode required for standard field replacement on supported Lochinvar units.
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.












