Laars Heating Systems R20047802 Burner/Pilot Assy

The Laars Heating Systems R20047802 Burner/Pilot Assy is a precision-engineered spark ignition pilot assembly designed specifically for compatible Laars boiler and volume water heater models. As a critical gas-fired heating system component, this assembly ensures consistent and reliable pilot flame ignition, which is essential for the safe activation of the main burner. For a veteran HVACR technician, the R20047802 provides an exact-fit OEM replacement part that eliminates the common indexing issues found with universal kits. This Spark Ign Burner/Pilot Assy features a robust igniter-electrode and high-grade pilot tube construction to withstand high-combustion chamber temperatures while maintaining proper flame rectification signals. When troubleshooting furnace ignition failure or erratic heating cycles in Laars hydronic systems, replacing the entire burner/pilot assembly often resolves issues related to carbon buildup or electrode degradation. Utilizing genuine Laars replacement parts like the R20047802 ensures that the system maintains its original engineering specifications for optimal fuel efficiency and operational uptime on the job site.

• Direct OEM Compatibility: Engineered specifically for Laars systems to ensure seamless integration with existing gas valves and ignition modules.
• Enhanced Ignition Reliability: The precision-gapped spark electrode provides a consistent arc for rapid pilot light establishment.
• Durable Construction: Built with high-temperature alloys to resist oxidation and prolong the service life of the burner assembly.
• Simplified Field Installation: Factory-set configurations reduce the need for manual adjustments during HVAC repair and maintenance.

Common Questions

What are the symptoms of a failing R20047802 assembly?
Common indicators include repeated "lockout" codes on the ignition control board, audible clicking from the spark igniter without flame establishment, or a weak, yellow pilot flame that fails to prove to the flame sensor.

Can this pilot assembly be used for both Natural Gas and Propane units?
The Laars R20047802 is typically configured for specific gas types; always verify the orifice size and part number against the appliance nameplate to ensure gas-fired heating system safety.

Is the electrode included in this burner/pilot assembly?
Yes, this is a complete Spark Ign Burner/Pilot Assy, which includes the pilot burner, spark electrode, and necessary mounting hardware for a full ignition functionality restoration.

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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.