York S1-025-27727-002 Temp Control

The York S1-025-27727-002 temperature control is a precision-engineered SPST (Single Pole Single Throw) inductive switch designed for consistent thermal regulation in York, Luxaire, and Coleman HVAC equipment. This fixed-setting limit control features an Open at 26°F (OP26) and Close at 38°F (CL38) configuration, providing critical freeze protection or defrost termination cycles within the refrigeration circuit. Built to withstand high-cycling demands, this OEM replacement part ensures the compressor and evaporator coil operate within safe thermal parameters, preventing liquid slugging or unnecessary system stress. When troubleshooting HVAC temperature sensors or freeze stats, technicians prioritize this component for its specific differential and reliable snap-acting electrical contacts. Proper installation requires verifying the technical specifications against the unit wiring diagram to maintain system integrity and proper refrigerant cycle management in residential and light commercial heat pumps and air conditioners.

Key Benefits for Technicians:

• Precise Thermal Response: Calibrated for an OP26 CL38 range to ensure accurate freeze protection and system safety.
• OEM Compatibility: Exact York replacement part ensures seamless fitment and electrical alignment without field modifications.
• Durable SPST Contacts: High-grade Single Pole Single Throw switch design engineered for heavy-duty HVAC electrical loads.
• System Reliability: Minimizes downtime by providing predictable switching performance in demanding condensing unit environments.

Common Questions & Technical Support:

Does this switch require manual resetting?
No, this is an automatic reset control that opens at 26°F and automatically closes once the temperature rises to 38°F.

What are the symptoms of a failing S1-025-27727-002?
A failed sensor often results in the system short-cycling, the evaporator coil icing over, or the outdoor unit failing to initiate a necessary defrost cycle.

Can this be used as a universal freeze stat?
While the electrical ratings are standard, the specific OP26 and CL38 settings are critical for York-specific logic boards; always verify the technical specifications before substituting.

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.