York S1-025-26357-000 Rollout Switch

The York S1-025-26357-000 Rollout Switch is a critical safety component designed for furnace rollout protection in York, Coleman, and Luxaire gas-fired units. This SPST (Single Pole Single Throw) manual reset limit switch is calibrated to open at 175 degrees Fahrenheit and close at 135 degrees Fahrenheit, effectively monitoring for flame rollout conditions that indicate heat exchanger failure or venting obstructions. As a genuine OEM York replacement part, it ensures proper fitment and maintains the original equipment’s safety specifications. For technicians performing furnace troubleshooting, this switch provides a reliable thermal cutoff to prevent hazardous cabinet temperatures. The L175-40F rollout switch configuration is high-limit sensitive, ensuring that if the flame path deviates from the combustion chamber, the control circuit is immediately interrupted. Professional installation is required to ensure the thermal limit switch is positioned correctly for accurate flame sensing and system integration.

• Precise Thermal Calibration: Fixed 175°F opening point provides reliable protection against overheating and flame rollout.
• OEM Compatibility: Exact drop-in replacement for York S1-025-26357-000, eliminating the need for mounting modifications.
• Manual Reset Safety: Requires manual intervention after a trip, forcing a necessary safety inspection of the heat exchanger and venting.
• Durable Construction: Built to withstand the high-ambient conditions of a burner manifold environment.

What causes a rollout switch to trip repeatedly?
Repeated tripping usually indicates a cracked heat exchanger, a clogged flue, or improper gas pressure. Always inspect the combustion integrity before resetting the switch.

Can I bypass the S1-025-26357-000 for testing?
Jumping a flame rollout switch is extremely dangerous and should never be done outside of momentary diagnostic testing by a qualified contractor. Permanent bypass voids safety protocols.

Does this switch replace generic 175-degree limits?
While the temperature rating may match, the York S1-025-26357-000 features specific mounting footprints and terminal orientations required for York furnace footprints.

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.