York S1-025-29041-711 Limit Switch

The York S1-025-29041-711 Limit Switch is a critical OEM replacement part designed for residential and light commercial heating systems. This 150-180F AUTO limit switch functions as a primary safety control, monitoring the heat exchanger temperature to prevent unsafe thermal conditions. As a direct replacement for the legacy 025-29041-011, it features a 3-inch insertion depth and is factory-calibrated to trip at 180°F (opening the circuit to kill the gas valve) and automatically reset at 150°F (closing the circuit). When troubleshooting furnace short cycling or 4-flash error codes on York control boards, verifying the continuity of this switch is a standard diagnostic step. Professionals rely on this genuine York furnace part for its precise 15-amp rating at 125/250V, ensuring electrical compatibility and system reliability. Using an automatic reset limit switch prevents permanent lockouts during temporary airflow restrictions, making it a staple for preventative maintenance and emergency HVAC repairs.

Key Benefits:

• Universal Compatibility: Engineering-grade direct replacement for 025-29041-011 ensuring a drop-in fit for compatible York and Coleman air handlers.
• High-Precision Calibration: Reliable 150-180 degree F temperature range protects the heat exchanger from cracks caused by excessive thermal stress.
• OEM Durability: Genuine York S1-02529041711 construction offers superior longevity compared to generic aftermarket alternatives.
• Simplify Diagnostics: Integrated automatic reset type logic allows for standard system cycling without requiring manual intervention after a high-limit event.
• Electrical Integrity: Rated for standard 15 Amp loads, maintaining circuit protection across high-performance blower applications.

Common Questions:

How do I test a York furnace limit switch for failure?
Use a multimeter set to ohms/continuity. At room temperature, the S1-025-29041-711 should show 0 ohms (closed). If the meter indicates infinite resistance (open) while the unit is cool, the switch is defective and needs immediate replacement.

Why is my York furnace high limit switch tripping?
While the switch itself can fail, frequent tripping often indicates restricted airflow. Check for a clogged air filter, blocked return vents, or a failing blower motor before installing the new 180-degree limit control.

Can I use S1-025-29041-711 if my old part number is 02529041011?
Yes. The S1-025-29041-711 is the official manufacturer-designated superseding part number for the 025-29041-011 and maintains the exact same technical specifications and mounting footprint.

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.