
York S1-025-51477-000 Limit Switch
The York S1-025-51477-000 Limit Switch is a critical safety component engineered for York furnace replacement and gas-fired heating systems. This 130/160 auto reset limit switch is designed to meet strict OEM HVAC parts standards, providing a precise thermal cutoff to protect the heat exchanger from high-temperature excursions. With an open temperature of 160°F and a reset point of 130°F, it ensures the system remains within safe operating parameters during high-demand cycles.
This unit serves as the direct replacement for S1-025-51474-000, delivering seamless mechanical and electrical compatibility. Constructed for industrial-grade durability, the switch resists the vibration and thermal stress common in residential heating systems and commercial applications. For technicians troubleshooting furnace short cycling or blower motor issues, this genuine York part offers a reliable fix by restoring the safety circuit's integrity without the need for mounting modifications.
Key Benefits for Technicians:- Factory-Calibrated Precision: Opens at 160°F and closes at 130°F, eliminating the need for field adjustments.
- Direct OEM Fit: Ensures proper lead termination and mounting alignment in York and Coleman DGAX077 series furnaces.
- Automatic Reset Logic: Resumes system operation automatically once temperatures drop below the 130°F threshold.
- Enhanced System Safety: Prevents catastrophic heat exchanger damage by interrupting the burner circuit during airflow blockages.
How do I confirm if my York furnace needs a new high limit switch?
If your furnace is short cycling or the blower fan runs continuously while the burners stay off, check the switch for continuity. An open circuit at room temperature typically indicates a failed internal bi-metal disc.
Is the S1-025-51477-000 compatible with older S1-025-51474-000 models?
Yes, the S1-025-51477-000 is the official manufacturer-designated direct replacement, maintaining the exact 130/160 temperature profile and mounting footprint.
What causes this limit switch to trip frequently?
Frequent tripping is usually caused by restricted airflow, such as a clogged air filter, blocked return vents, or a failing blower motor, rather than a defect in the switch itself.
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.
York S1-025-51477-000 Limit Switch
The York S1-025-51477-000 Limit Switch is a critical safety component engineered for York furnace replacement and gas-fired heating systems. This 130/160 auto reset limit switch is designed to meet strict OEM HVAC parts standards, providing a precise thermal cutoff to protect the heat exchanger from high-temperature excursions. With an open temperature of 160°F and a reset point of 130°F, it ensures the system remains within safe operating parameters during high-demand cycles.
This unit serves as the direct replacement for S1-025-51474-000, delivering seamless mechanical and electrical compatibility. Constructed for industrial-grade durability, the switch resists the vibration and thermal stress common in residential heating systems and commercial applications. For technicians troubleshooting furnace short cycling or blower motor issues, this genuine York part offers a reliable fix by restoring the safety circuit's integrity without the need for mounting modifications.
Key Benefits for Technicians:- Factory-Calibrated Precision: Opens at 160°F and closes at 130°F, eliminating the need for field adjustments.
- Direct OEM Fit: Ensures proper lead termination and mounting alignment in York and Coleman DGAX077 series furnaces.
- Automatic Reset Logic: Resumes system operation automatically once temperatures drop below the 130°F threshold.
- Enhanced System Safety: Prevents catastrophic heat exchanger damage by interrupting the burner circuit during airflow blockages.
How do I confirm if my York furnace needs a new high limit switch?
If your furnace is short cycling or the blower fan runs continuously while the burners stay off, check the switch for continuity. An open circuit at room temperature typically indicates a failed internal bi-metal disc.
Is the S1-025-51477-000 compatible with older S1-025-51474-000 models?
Yes, the S1-025-51477-000 is the official manufacturer-designated direct replacement, maintaining the exact 130/160 temperature profile and mounting footprint.
What causes this limit switch to trip frequently?
Frequent tripping is usually caused by restricted airflow, such as a clogged air filter, blocked return vents, or a failing blower motor, rather than a defect in the switch itself.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The York S1-025-51477-000 Limit Switch is a critical safety component engineered for York furnace replacement and gas-fired heating systems. This 130/160 auto reset limit switch is designed to meet strict OEM HVAC parts standards, providing a precise thermal cutoff to protect the heat exchanger from high-temperature excursions. With an open temperature of 160°F and a reset point of 130°F, it ensures the system remains within safe operating parameters during high-demand cycles.
This unit serves as the direct replacement for S1-025-51474-000, delivering seamless mechanical and electrical compatibility. Constructed for industrial-grade durability, the switch resists the vibration and thermal stress common in residential heating systems and commercial applications. For technicians troubleshooting furnace short cycling or blower motor issues, this genuine York part offers a reliable fix by restoring the safety circuit's integrity without the need for mounting modifications.
Key Benefits for Technicians:- Factory-Calibrated Precision: Opens at 160°F and closes at 130°F, eliminating the need for field adjustments.
- Direct OEM Fit: Ensures proper lead termination and mounting alignment in York and Coleman DGAX077 series furnaces.
- Automatic Reset Logic: Resumes system operation automatically once temperatures drop below the 130°F threshold.
- Enhanced System Safety: Prevents catastrophic heat exchanger damage by interrupting the burner circuit during airflow blockages.
How do I confirm if my York furnace needs a new high limit switch?
If your furnace is short cycling or the blower fan runs continuously while the burners stay off, check the switch for continuity. An open circuit at room temperature typically indicates a failed internal bi-metal disc.
Is the S1-025-51477-000 compatible with older S1-025-51474-000 models?
Yes, the S1-025-51477-000 is the official manufacturer-designated direct replacement, maintaining the exact 130/160 temperature profile and mounting footprint.
What causes this limit switch to trip frequently?
Frequent tripping is usually caused by restricted airflow, such as a clogged air filter, blocked return vents, or a failing blower motor, rather than a defect in the switch itself.
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.












