York S1-025-38901-000 Limit Switch technicians should verify the specific

technicians should verify the specific maintenance requirements of the blower housing or pillow block it is being installed into

ensuring accurate damper positioning and optimal airflow management

The unit measures 1

Heat cycles and loose terminal connections often cause the plug to melt or the wiring to brittle

this 5/16" damper rod is compatible with any linkage connector or ball joint designed for a 5/16-inch diameter rod

York S1-025-38901-000 Limit Switch technicians should verify the specificThe York S1 025 38901 000 Limit Switch is a critical safety component designed for specific air handling and furnace applications where precise thermal monitoring is required. This SPST (Single Pole Single Throw) switch features an automatic reset (A R) mechanism, ensuring the circuit closes automatically once temperatures return to the operating range. With a factory calibrated open temperature of 55F and a close temperature of 45F, this HVAC limit