York S1-025-47175-000 Limit Switch
The York S1-025-47175-000 Limit Switch is a critical safety component designed for specific furnace and air handler applications. This L125-30 high limit control functions on a fixed temperature scale, opening the circuit at 125 degrees Fahrenheit and automatically resetting once the temperature drops to 95 degrees Fahrenheit. As a genuine OEM York replacement part, it ensures precise thermal response times to prevent heat exchanger damage or unsafe operating conditions. The SPST (Single Pole Single Throw) configuration provides reliable NC (Normally Closed) operation during standard heating cycles. When troubleshooting York furnace lockout codes or a blower motor that runs constantly, checking the continuity of this temperature-sensing switch is a standard diagnostic step. This furnace limit switch features a standard mounting flange for a secure fit within the plenum or burner vestibule, maintaining the integrity of the original equipment manufacturer’s safety string logic and ensuring proper HVAC system airflow management.
Key Benefits for Contractors
- OEM Compatibility: Precision engineered as a drop-in replacement for York, Coleman, and Luxaire units to maintain CSA/UL certification.
- Precise Thermal Calibration: Fixed 125-degree trip point ensures equipment protection against overheating without nuisance tripping.
- Automatic Reset Terminal: Contacts automatically re-close at 95 degrees, restoring system operation once the plenum temperature stabilizes.
- Durable Construction: Built to withstand high-cycle environments within the heat exchanger vestibule.
Common Questions
What causes a York S1-025-47175-000 to trip?
The most frequent cause for this switch to open is restricted airflow. This is typically due to a heavily loaded pleated filter, an undersized return air drop, or a failed indoor blower motor. If the switch opens at 125 degrees, the burner circuit is broken to prevent damage.
How do I test the S1-025-47175-000 limit switch?
Using a multimeter set to Ohms, check for continuity across the terminals while the switch is at room temperature. Because this is a Normally Closed (NC) switch, it should show nearly zero resistance. If the switch is open at room temperature, it has failed and requires replacement.
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.
Original: $21.74
-65%$21.74
$7.61York S1-025-47175-000 Limit Switch
The York S1-025-47175-000 Limit Switch is a critical safety component designed for specific furnace and air handler applications. This L125-30 high limit control functions on a fixed temperature scale, opening the circuit at 125 degrees Fahrenheit and automatically resetting once the temperature drops to 95 degrees Fahrenheit. As a genuine OEM York replacement part, it ensures precise thermal response times to prevent heat exchanger damage or unsafe operating conditions. The SPST (Single Pole Single Throw) configuration provides reliable NC (Normally Closed) operation during standard heating cycles. When troubleshooting York furnace lockout codes or a blower motor that runs constantly, checking the continuity of this temperature-sensing switch is a standard diagnostic step. This furnace limit switch features a standard mounting flange for a secure fit within the plenum or burner vestibule, maintaining the integrity of the original equipment manufacturer’s safety string logic and ensuring proper HVAC system airflow management.
Key Benefits for Contractors
- OEM Compatibility: Precision engineered as a drop-in replacement for York, Coleman, and Luxaire units to maintain CSA/UL certification.
- Precise Thermal Calibration: Fixed 125-degree trip point ensures equipment protection against overheating without nuisance tripping.
- Automatic Reset Terminal: Contacts automatically re-close at 95 degrees, restoring system operation once the plenum temperature stabilizes.
- Durable Construction: Built to withstand high-cycle environments within the heat exchanger vestibule.
Common Questions
What causes a York S1-025-47175-000 to trip?
The most frequent cause for this switch to open is restricted airflow. This is typically due to a heavily loaded pleated filter, an undersized return air drop, or a failed indoor blower motor. If the switch opens at 125 degrees, the burner circuit is broken to prevent damage.
How do I test the S1-025-47175-000 limit switch?
Using a multimeter set to Ohms, check for continuity across the terminals while the switch is at room temperature. Because this is a Normally Closed (NC) switch, it should show nearly zero resistance. If the switch is open at room temperature, it has failed and requires replacement.
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
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Description
The York S1-025-47175-000 Limit Switch is a critical safety component designed for specific furnace and air handler applications. This L125-30 high limit control functions on a fixed temperature scale, opening the circuit at 125 degrees Fahrenheit and automatically resetting once the temperature drops to 95 degrees Fahrenheit. As a genuine OEM York replacement part, it ensures precise thermal response times to prevent heat exchanger damage or unsafe operating conditions. The SPST (Single Pole Single Throw) configuration provides reliable NC (Normally Closed) operation during standard heating cycles. When troubleshooting York furnace lockout codes or a blower motor that runs constantly, checking the continuity of this temperature-sensing switch is a standard diagnostic step. This furnace limit switch features a standard mounting flange for a secure fit within the plenum or burner vestibule, maintaining the integrity of the original equipment manufacturer’s safety string logic and ensuring proper HVAC system airflow management.
Key Benefits for Contractors
- OEM Compatibility: Precision engineered as a drop-in replacement for York, Coleman, and Luxaire units to maintain CSA/UL certification.
- Precise Thermal Calibration: Fixed 125-degree trip point ensures equipment protection against overheating without nuisance tripping.
- Automatic Reset Terminal: Contacts automatically re-close at 95 degrees, restoring system operation once the plenum temperature stabilizes.
- Durable Construction: Built to withstand high-cycle environments within the heat exchanger vestibule.
Common Questions
What causes a York S1-025-47175-000 to trip?
The most frequent cause for this switch to open is restricted airflow. This is typically due to a heavily loaded pleated filter, an undersized return air drop, or a failed indoor blower motor. If the switch opens at 125 degrees, the burner circuit is broken to prevent damage.
How do I test the S1-025-47175-000 limit switch?
Using a multimeter set to Ohms, check for continuity across the terminals while the switch is at room temperature. Because this is a Normally Closed (NC) switch, it should show nearly zero resistance. If the switch is open at room temperature, it has failed and requires replacement.
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.
