York S1-025-29041-006 Limit Switch

The York S1-025-29041-006 Limit Switch is a critical OEM field-service component engineered for precise thermal protection in York gas furnaces and air handlers. This automatic temperature limit switch operates within a fixed 170°F to 200°F range, serving as a primary safety control to prevent heat exchanger damage or unsafe plenum temperatures. Featuring a 3-inch insert probe, it provides accurate sensing of internal airflow temperatures, ensuring the burner circuit opens if the system exceeds safe operating parameters. As a direct York furnace replacement part, it eliminates the calibration issues common with universal aftermarket switches. This high-limit safety switch is designed for rapid response times and long-cycle reliability in residential and light commercial HVAC applications. Using genuine HVAC replacement parts like the S1-025-29041-006 maintains the original equipment manufacturer's safety listings and ensures seamless mechanical compatibility with existing mounting brackets and wiring harnesses.

Key Benefits for Contractors

• Precise Thermal Response: Factory-calibrated to trip between 170°F and 200°F to prevent system overheating.
• OEM Direct Fit: The 3-inch insert depth ensures the sensor is properly positioned within the airflow stream for accurate temperature detection.
• Simplified Service: Direct replacement for York, Luxaire, and Coleman equipment, reducing troubleshooting time on the job site.
• Automatic Reset: Resumes normal operation once temperatures drop below the safety differential, minimizing unnecessary nuisance service calls.

Common Questions

How do I know if my York limit switch is bad?
If the furnace blower runs continuously while the burners fail to ignite, or if the system cycles on high limit despite adequate airflow, the York S1-025-29041-006 may be stuck open or out of calibration. Always check for a dirty filter or blocked return before replacing.

Can I use a different probe length for this application?
No. The 3-inch insert is specific to the heat exchanger geometry. Using a shorter or longer probe can cause delayed tripping or premature cycling, compromising system safety.

Is this switch compatible with other brands?
While primarily used in York units, this part is frequently used in Coleman and Luxaire systems. Always verify the S1-025-29041-006 part number against your specific model's data plate.

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.