Trane SEN1951 Flame Sensor 320788-702 preventing improper combustion or ignition
Baker’s notes & crumb story
Description
preventing improper combustion or ignition delay
specifically optimized for high-pressure R410A systems and standard liquid line applications
Why is my Lennox furnace showing a pressure switch open code
refer to the specific LIT-125430 technical bulletin and ensure the model matches the specific safety requirements for fuel-burning equipment
Trane SEN1951 Flame Sensor 320788-702 preventing improper combustion or ignitionThe Trane SEN1951 Flame Sensor (also identified as SEN01951) is a critical OEM replacement part engineered to maintain precise flame rectification within residential and commercial furnace burners. This furnace flame sensor operates by detecting the presence of a microamp signal generated during combustion. If the HVAC control board fails to receive this signal, it immediately terminates the gas valve cycle to prevent hazardous gas accumulation.