Description
The York S1-02535380000 Auto Reset Limit Switch is a temperature-sensitive control component used in gas furnaces. It operates as a high-limit disc switch that monitors internal heat levels near the heat exchanger or airflow path and automatically opens the circuit when the sensed temperature reaches approximately 140F to stop burner operation. The temperature drops to around 110F, it resets automatically and allows normal furnace cycling to resume in HVAC systems applications. It is installed within the furnace control assembly to protect components from overheating caused by restricted airflow, or combustion imbalances. It plays an essential role in maintaining safe operating conditions.
