Lennox 12L09 – 104160-01 Flame Sensor, 0.114 x 2" Probe, For LRP Series Units

 

Enhance furnace reliability with the Lennox 12L09 flame sensor, engineered specifically for LRP Series packaged units. This OEM-grade replacement part ensures accurate flame detection, helping maintain safe and efficient furnace operation during every heating cycle. Designed with a 0.114 x 2-inch probe, the sensor delivers precise performance that aligns with Lennox manufacturing standards.

Ideal for service technicians and homeowners seeking dependable ignition system troubleshooting, this flame sensor restores proper burner monitoring and helps prevent nuisance lockouts. Install it to maintain consistent heating performance and long-term system safety.

 

Key Features

 

• Genuine Lennox OEM flame sensor for reliable system compatibility
• 0.114 x 2-inch probe ensures proper flame detection sensitivity
• Designed for Lennox LRP Series packaged units
• Supports consistent ignition performance and system safety
• Helps prevent ignition failure, shutdowns, and error codes
• Durable construction for long service life in demanding environments

 

Common Applications

 

• Replacement flame sensor for Lennox LRP Series packaged systems
• Maintenance and repair of ignition and burner safety components
• HVAC service, preventative upkeep, and system troubleshooting