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Operating on 24 VAC with a 1/4 HP combustion blower relay
optimizing efficiency between the electric and gas stages
By integrating the control head with the Selectra electronic gas flame modulation system
Key Benefits Universal Compatibility: Fits Hydrolevel Safgard 24
Professional testing involves checking the secondary voltage output and inspecting the ceramic for hairline cracks
York S1-7975-3901/A Burner Sensor Wire 320788-704 Operating on 24 VAC withThe 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
