Precision Temperature Control: Features a legible "Warmer-Cooler" horizontal interface for exact user adjustments

preventing lifting or inconsistent flame patterns in LP systems

A compromised diaphragm leads to air leaks

four aluminum pop rivets

Utilizing this Rheem replacement part ensures you are restoring the unit to its original design parameters and maintaining system reliability under heavy operating loads

York S1-025-27727-001 Limit Switch Precision Temperature Control: Features aThe York S1 025 27727 001 is a critical HVAC replacement limit switch designed for precision thermal monitoring in residential and commercial climate control systems. This SPST auto reset limit switch operates within a tight 25F to 41F temperature range, ensuring the system maintains safe operating parameters during cooling and heating cycles. Engineered as a genuine York OEM furnace part, it is frequently utilized in single duct applications and