This Trane thermostat part is a critical component for maintaining high-efficiency performance and accurate thermal management in demanding environments

including the popular GMP

While some Honeywell VR series valves allow for conversion

this direct replacement eliminates the guesswork often found with universal components

York S1-7975-3901/A Burner Sensor Wire 318973-401 This Trane thermostat part isThe York S1 7975 3901 A Burner Sensor Wire is a critical OEM replacement part engineered for high accuracy flame rectification signal transmission. As a veteran technician, you know that a degraded sensor wire often leads to intermittent ignition failure or short cycling, as the control board fails to receive the microamp signal required to keep the gas valve energized. This burner sensor wire is specifically designed for York DGAA056BDTA furnace