The ST-S3E-XME utilizes a standard 10k Ohm Type III thermistor curve

Engineered with a rugged all-steel case and cover

you know that intermittent firing issues or "no-flame" codes often trace back to compromised terminal connections or heat-stressed insulation in the boiler gas valve harness

on the high side and 1

York S1-324-36073-307 Motor 318518-761 The ST-S3E-XME utilizes a standardThe York S1 324 36073 307 is a high efficiency 1 2 HP ECM blower motor engineered for precise airflow management in residential and light commercial forced air systems. Operating on a versatile 120 240V dual voltage architecture, this direct drive motor utilizes advanced electronically commutated motor technology to deliver consistent static pressure compensation and variable speed fan control. As a genuine Source1 OEM replacement part, it is the