This HVAC gas pressure safety switch is rated for natural gas

triggering a precise cut-out temperature between 120-150°F to prevent overheating and potential component damage

replacing the S1-031-09175-000 often resolves relay failures on the board that prevent blower activation

Common Questions What boiler models are compatible with the Weil McLain 510-312-209

York S1-025-31978-000 Damper Actuator 30067439-890 This HVAC gas pressure safetyThe York S1 025 31978 000 Damper Actuator is a professional grade 24V HVAC actuator specifically engineered for high cycle performance in bypass and zone controlled systems. This OEM York replacement part provides the precise torque required to modulate damper blades, ensuring balanced static pressure and efficient airflow management across multiple duct zones. Built for seamless integration with zoning system controllers, the S1 025 31978 000