York S1-025-22273-003 Limit Switch the York S1-025-29041-006 may be

the York S1-025-29041-006 may be stuck open or out of calibration

This often stems from a dirty furnace air filter

A standard 4mm Allen wrench is required to secure the cartridge into the valve body

requiring a replacement like the 100241

Swapping the 415-43676-03 with a different temperature rating will compromise the safety logic of the gas control valve and may lead to premature shutdowns or hazardous operating conditions

York S1-025-22273-003 Limit Switch the York S1-025-29041-006 may beThe York S1 025 22273 003 Limit Switch is a critical OEM safety component engineered for precise thermal monitoring in high performance HVAC systems. This SPST automatic reset limit switch is calibrated to open the electrical circuit at 160F, effectively halting operation to prevent heat exchanger damage or unsafe conditions. Once the induction or blower housing temperature stabilizes and drops to the 120F close setpoint, the switch automatically