Description
The Lennox 15K16 Flame Sensor ULN is an essential component designed for checking flame presence during furnace operation. It works as part of the ignition and safety circuit by detecting burner flame and communicating with the furnace control board to confirm successful ignitions. When the flame is not detected, the sensor supports interrupting the gas flow to support safe system shutdown procedures in HVAC systems. This component is commonly installed in commercial gas heating equipment where accurate flame monitoring is required for normal furnace operation, combustion control and it is dependable heating performance throughout the heating cycle.









