York S1-025-30890-000 Temp Control

The York S1-025-30890-000 Temp Control is a critical high-limit safety component engineered for precise thermal regulation within York HVAC systems. Operating with a fixed 210°F opening point and a 180°F closing point, this SPST (Single Pole Single Throw) switch provides reliable protection against overheating by breaking the circuit when the temperature exceeds the safety threshold. As an OEM York replacement part, it ensures exact fitment and response times that match the original equipment's design parameters, preventing the premature wear or safety lockouts often associated with generic alternatives.

For contractors performing furnace repair or routine HVAC system diagnostics, the S1-025-30890-000 offers a drop-in solution to resolve limit switch faults and restore proper cycling. This temperature control is built to withstand the rigorous duty cycles of residential and light commercial air handlers and furnaces. By maintaining a 30-degree differential between the cutout and reset points, it prevents short-cycling while ensuring the heat exchanger remains within safe operating limits. Whether you are addressing a York HVAC part lookup or a proactive maintenance call, this genuine temperature limit switch is essential for maintaining system integrity and long-term performance.

• Precise Thermal Response: Optimized with a 210°F Open / 180°F Close specification to prevent heat exchanger damage.
• OEM Compatibility: Genuine York S1-025-30890-000 ensures seamless integration with existing control boards and wiring harnesses.
• Durable Construction: Engineered to handle high-temperature environments without calibration drift, reducing callbacks for service technicians.
• Enhanced Safety: Acts as a primary high-limit fail-safe to protect equipment and property from excessive thermal buildup.

How do I know if my York S1-025-30890-000 is failing?
Common indicators include the furnace blower running continuously without heat, the system throwing a high-limit lockout code, or the burner shutting off shortly after ignition. If you measure an open circuit across the terminals at room temperature, the switch has failed.

Can I substitute this with a different temperature rating?
It is highly recommended to stay with the 210Op 180Cl rating specified for your specific York model. Using a switch with a higher opening point can compromise the safety of the heat exchanger, while a lower point may cause nuisance tripping during normal operation.

Is this a manual or automatic reset switch?
This specific model is an automatic reset control. Once the temperature drops back down to 180°F, the internal contacts will close again to allow the system to resume its heating cycle.

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.