Lennox 79J22 Flame Sensor

The Lenno x 79J22 is a crucial safety component in Lenno x gas-powered furnaces and HVAC systems. It's a flame sensor, shaped like a 90-degree bend (L-style) with specific dimensions to ensure proper placement within the furnace (2.4" x 4.3" x 0.5" ; L-shape length: 2 1/8" ; overall length: 7/8" ; bracket length: 1 5/8"). During operation, the sensor detects the presence of a flame. This vital function ensures the safe and efficient operation of your furnace by shutting down the gas supply if no flame is detected. This prevents gas leaks and potential hazards, promoting safe and reliable heating for your home.