Lennox 49M84 Flame Sensor Maintain the operational integrity of

Maintain the operational integrity of your heating equipment with the York S1-025-29759-001 Limit Switch

and high-ambient heat—factors that typically lead to premature failure in standard electrolytic units

making it a reliable choice for field replacements in condensers and heat pumps

it does not contain an internal lamp for visual status indication

During HVAC pilot line repair

Lennox 49M84 Flame Sensor Maintain the operational integrity ofThe Lennox 49M84 Flame Sensor is a critical OEM replacement part designed for precision flame rectification in gas fired heating systems. Engineered for high temperature resilience, this L Bend style sensor monitors the burner's flame status, transmitting a DC microamp signal to the integrated furnace control to ensure safe and continuous operation. A failing 49M84 is often the culprit when a furnace cycles through several ignition attempts before a