York S1-025-29041-002 Limit Switch

The York S1-025-29041-002 is a professional-grade OEM furnace limit switch engineered for precision thermal regulation in York, Luxaire, and Coleman heating systems. This automatic reset limit control features a 3-inch insertion probe, making it an essential safety component for monitoring high-limit temperatures within the furnace plenum. Designed for high-cycle reliability, the switch is calibrated to open at 150°F to prevent heat exchanger damage and close at 120°F once safe operating temperatures are restored. Contractors rely on this specific L150-30 limit switch for its exact fit in residential and commercial air handlers, ensuring the system adheres to strict OEM safety parameters without the need for field modifications. Using a genuine Source1 HVAC part like the S1-025-29041-002 ensures equipment longevity and maintains the integrity of the original furnace configuration during emergency service calls or routine maintenance.

Key Benefits:

• Precision Thermal Safety: Protects the heat exchanger by cutting the burner circuit when temperatures reach 150°F.
• Automatic Reset Logic: Resumes system operation automatically at 120°F, reducing unnecessary service callbacks for manual resets.
• Broad OEM Compatibility: Verified for use in a wide range of York, Coleman, and Luxaire gas furnaces and air handlers.
• Standardized 3-Inch Insertion: Allows for rapid installation into existing mounting brackets with a secure 3-inch probe depth.
• Durable Construction: Built to withstand the high-temperature environment of the heat exchanger plenum for consistent performance.

Common Questions:

What causes a York furnace limit switch to trip repeatedly?
Repeated tripping of the S1-025-29041-002 usually points to restricted airflow, such as a dirty air filter, blocked return ducts, or a failing blower motor, rather than a faulty switch.

Can I replace a 3-inch limit switch with a shorter probe?
For accurate thermal sensing, you must use the 3-inch insertion limit switch specified by the manufacturer. A shorter probe may sit in a "dead zone" and fail to detect critical overheating events.

Is the S1-025-29041-002 a manual reset switch?
No, this is an automatic limit switch. It will cycle the system back on once the internal temperature drops to 120°F (30-degree differential).

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.