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inspect the internal seat cup for debris or scale buildup common in high-hardness water environments
Dual-Display Visibility: Features a clear interface for both the 60-90°F scale and active thermometer readings
providing the exact BTU output required by the manufacturer’s specifications
It will open the circuit when the pressure reaches 600 PSI and will automatically close the circuit once the system pressure drops back down to 475 PSI
0 µA usually indicate a dirty or failing probe
York S1-024-34769-000 Pressure Switch Els PW 17895 inspect the internal seat cupThe York S1 024 34769 000 Pressure Switch is a high precision safety sensor specifically calibrated for York, Coleman, and Luxaire gas furnaces. This Normally Open (N O) differential switch monitors the vacuum created by the draft inducer motor to ensure proper combustion air flow before allowing ignition. With a factory calibrated 1. 60" WC set point and a 0. 4" WC reset, this component prevents the unit from operating under hazardous venting