OEM-grade hot surface ignitor specifically engineered for precision ignition in Lennox gas furnaces and condensing water boilers

It features a broad 120-240V dual voltage capacity and single-phase operation

Safety Disconnect: Serves as a reliable on/off disconnect switch for local unit isolation during electrical work

Key Benefits Enhanced Durability: The silicon nitride element is far less brittle than carbide

Lochinvar & A.O. Smith 100279407 Flame Sensor 321894-706 OEM-grade hot surface ignitor specificallyThe Lochinvar & A. O. Smith 100279407 Flame Sensor is a critical safety component engineered for precise flame rectification in high efficiency boilers and water heaters. This original equipment manufacturer (OEM) part is designed for rear mount installation, ensuring the control module receives an accurate microamp signal once a flame is established. When your system faces intermittent ignition lockouts or fails to sense a burner flame, replacing the