Lennox 69W43 Flame Sensor and air handler control circuits

and air handler control circuits

this kit ensures reliable normally open (PDTC) or normally closed (PDTO) valve positioning based on your specific control sequence requirements

and other non-corrosive gas services

a strain relief fitting is essential for protecting the internal screw terminals from physical stress and ensuring a professional

this ignitor assembly is cross-compatible with several Bryant and Payne gas units

Lennox 69W43 Flame Sensor and air handler control circuitsThe Lennox 69W43 Flame Sensor is a critical OEM safety component engineered for precise flame rectification within gas furnace burner assemblies. As a direct 69W4301 replacement part, this sensor features a high grade stainless steel sensing rod capable of withstanding operating temperatures up to 2190F, paired with a durable ceramic insulator rated for 1000F. When the furnace control board initiates the ignition sequence, the 69W43 detects the