always confirm your specific model and serial number

including high-torque and fire/smoke models

frequent nuisance lockouts

and VP517A pneumatic valves

York S1-024-35596-000 Limit Switch always confirm your specific modelThe York S1 024 35596 000 is a critical OEM furnace limit switch designed to protect heating systems from thermal overload. As a veteran grade HVAC safety control, this auto reset limit switch is engineered with a factory calibrated 110F 150F operating range. The bimetal sensing element is tuned to open the electrical circuit at 150F to prevent heat exchanger damage and close at 110F once temperatures return to a safe operational threshold. This HVAC