a full Lennox flame sensor replacement is the professional standard

How do I ensure the sensor detects the temperature accurately

ventilating

This furnace secondary coil is designed to handle corrosive condensate while maintaining optimal thermal transfer

ASCO AH4E112S4 Actuator 321894-709 a full Lennox flame sensorThe ASCO AH4E112S4 Actuator is a high performance electro hydraulic linear actuator designed for demanding industrial and commercial burner applications. This Hydramotor actuator operates on 120Vac and features a sophisticated Low High Off control sequence, allowing for precise gas flow regulation. Engineered for efficiency, it boasts a fast opening time of 14 seconds maximum, ensuring rapid system response, while providing a critical safety shutoff