Lennox 80K09 Ignitor

The Lennox 80K09 Ignitor is a critical OEM replacement component designed for high-performance ignition in residential and commercial gas furnaces. Engineered as a spark ignitor electrode, this part is essential for initiating the combustion process by delivering a consistent, high-voltage spark to the burner assembly. This specific model, often cross-referenced as Lennox 80K0901, features a robust "L-style" electrode configuration with a total length of 2-3/4 inches and a 2-inch mounting bracket, ensuring exact fitment and alignment within the combustion chamber. For technicians servicing Lennox GCS16 or GCS20 series units, this genuine HVAC replacement part eliminates the reliability issues common with universal aftermarket alternatives. The silicon carbide construction and precise 1/4-inch offset optimize furnace ignition timing, reducing fuel waste and preventing delayed ignition "booms." Whether you are performing a seasonal tune-up or emergency repair, utilizing this authentic Lennox furnace igniter ensures the system operates within original manufacturer specifications for safety and efficiency.

• Direct OEM Compatibility: Specifically engineered for Lennox, Armstrong, and Ducane equipment to ensure plug-and-play installation without field modifications.
• Professional-Grade Durability: Constructed with high-density materials to withstand extreme thermal cycling and oxidation in high-demand heating environments.
• Optimized Combustion: Precise electrode gap and "L" lead geometry provide a reliable spark for immediate gas-air mixture ignition.
• Reduced System Wear: Reliable first-cycle ignition protects the ignition control board and burner assembly from stress caused by repeated trial-for-ignition cycles.

Which furnace models are compatible with the 80K09?
This ignitor is a standard Lennox 80K09 replacement for various rooftop units and furnaces, including the GCS16, GCS16R, and GCS20 series. Always verify the part number against your unit's specific wiring diagram and parts list.

What are the symptoms of a failing Lennox 80K09 ignitor?
Common indicators include the furnace clicking repeatedly without a flame, "Ignition Failure" codes on the control board, or visible carbon buildup and cracks on the ceramic insulator or electrode tip.

Can I use this to replace a 70W16 nitride ignitor?
No. The 80K09 is a spark-to-pilot or direct spark electrode, not a hot surface ignitor (HSI). These components operate on different voltages and control sequences and are not interchangeable.

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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.