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The York S1-025-31813-000 Limit Switch is a precise OEM replacement part engineered for high-accuracy thermal protection in residential and commercial York furnaces
this switch ensures that the system fails safe long before internal components reach critical thermal instability
and nitrogen
requiring a technician to physically inspect the system before restoring operation—a vital safeguard against persistent flame rollout conditions caused by cracked heat exchangers or obstructed venting
Robertshaw 1970-072 Thermocouple The York S1-025-31813-000 Limit SwitchThe Robertshaw 1970 072 Uni Couple Thermocouple is a high performance 72 inch universal thermocouple engineered for reliability in standing pilot systems. This industrial grade gas furnace part features a stainless steel outer jacket that prevents heat blistering and maximizes the service life of the pilot light sensor under high temperature conditions. Its unique 1970 Uni Couple design includes a pre rolled threaded nut and zip nut hardware, allowing