
York S1-025-50869-000 Pressure Switch
The 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 required for high-efficiency gas furnaces. The robust diaphragm construction and corrosion-resistant housing provide reliable switching in demanding environments. This single-pole single-throw (SPST) switch facilitates seamless integration with existing control boards and wiring harnesses. When diagnosing furnace pressure switch failure, verify that port orientation and electrical terminal positioning match your specific model to ensure field reliability and equipment uptime.
Key Benefits for Technicians- Factory-Calibrated Precision: Fixed -0.10" WC set point eliminates the need for field adjustments and ensures accurate venting safety.
- Enhanced Compatibility: Direct replacement for numerous York, Luxaire, and Coleman furnace models.
- Durable Construction: High-grade internal diaphragm resists fatigue from frequent cycling.
- Simplified Installation: Standard 1/4-inch male spade terminals and standardized mounting brackets reduce labor time.
What causes a pressure switch to stay open?
Common causes include a failing inducer blower, cracked heat exchanger, restricted flue vent, or a blocked condensate drain line. Always verify with a calibrated manometer during troubleshooting.
Can I use a universal pressure switch as a substitute?
While universal models exist, using the OEM S1-025-50869-000 is recommended to ensure the exact set point and mounting orientation required for the safety loop.
Does this switch handle high-voltage circuits?
No, this is a low-voltage safety component designed for 24V AC control circuits. Exposing the contacts to high voltage will cause immediate failure.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
York S1-025-50869-000 Pressure Switch
The 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 required for high-efficiency gas furnaces. The robust diaphragm construction and corrosion-resistant housing provide reliable switching in demanding environments. This single-pole single-throw (SPST) switch facilitates seamless integration with existing control boards and wiring harnesses. When diagnosing furnace pressure switch failure, verify that port orientation and electrical terminal positioning match your specific model to ensure field reliability and equipment uptime.
Key Benefits for Technicians- Factory-Calibrated Precision: Fixed -0.10" WC set point eliminates the need for field adjustments and ensures accurate venting safety.
- Enhanced Compatibility: Direct replacement for numerous York, Luxaire, and Coleman furnace models.
- Durable Construction: High-grade internal diaphragm resists fatigue from frequent cycling.
- Simplified Installation: Standard 1/4-inch male spade terminals and standardized mounting brackets reduce labor time.
What causes a pressure switch to stay open?
Common causes include a failing inducer blower, cracked heat exchanger, restricted flue vent, or a blocked condensate drain line. Always verify with a calibrated manometer during troubleshooting.
Can I use a universal pressure switch as a substitute?
While universal models exist, using the OEM S1-025-50869-000 is recommended to ensure the exact set point and mounting orientation required for the safety loop.
Does this switch handle high-voltage circuits?
No, this is a low-voltage safety component designed for 24V AC control circuits. Exposing the contacts to high voltage will cause immediate failure.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The 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 required for high-efficiency gas furnaces. The robust diaphragm construction and corrosion-resistant housing provide reliable switching in demanding environments. This single-pole single-throw (SPST) switch facilitates seamless integration with existing control boards and wiring harnesses. When diagnosing furnace pressure switch failure, verify that port orientation and electrical terminal positioning match your specific model to ensure field reliability and equipment uptime.
Key Benefits for Technicians- Factory-Calibrated Precision: Fixed -0.10" WC set point eliminates the need for field adjustments and ensures accurate venting safety.
- Enhanced Compatibility: Direct replacement for numerous York, Luxaire, and Coleman furnace models.
- Durable Construction: High-grade internal diaphragm resists fatigue from frequent cycling.
- Simplified Installation: Standard 1/4-inch male spade terminals and standardized mounting brackets reduce labor time.
What causes a pressure switch to stay open?
Common causes include a failing inducer blower, cracked heat exchanger, restricted flue vent, or a blocked condensate drain line. Always verify with a calibrated manometer during troubleshooting.
Can I use a universal pressure switch as a substitute?
While universal models exist, using the OEM S1-025-50869-000 is recommended to ensure the exact set point and mounting orientation required for the safety loop.
Does this switch handle high-voltage circuits?
No, this is a low-voltage safety component designed for 24V AC control circuits. Exposing the contacts to high voltage will cause immediate failure.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












