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Always inspect the combustion integrity before resetting the switch
If the electrical component has failed
preventing thermal stress on the heat exchanger and ensuring proper venting performance
this valve serves as a direct OEM replacement gas valve for a wide range of Carrier
irregular valve travel
York S1-025-50869-000 Pressure Switch 320720-756 Always inspect the combustion integrityThe York S1 025 50869 000 Pressure Switch is a critical safety component designed for precise HVAC furnace combustion monitoring. Engineered to detect proper inducer motor operation, this atmospheric pressure switch ensures that the venting system is clear of obstructions before allowing the ignition sequence to proceed. As a genuine OEM York replacement part, it features a factory calibrated set point of 0. 10" WC, maintaining the tight tolerances
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