Always verify tubing lines and baseplate dimensions before brazing

a 4-second trial for ignition (TFI)

System Protection: Safely interrupts the control circuit during high-pressure conditions to protect the compressor

Operating on a 120V gas valve solenoid

Key Benefits Direct OEM Compatibility: Specifically designed as a drop-in replacement for Crest FB 751-1251 series boilers

York S1-031-09164-000 Sensor 340793-762 Always verify tubing lines andThe York S1 031 09164 000 Sensor is a precision engineered 10K Ohm Type III thermistor specifically designed to monitor evaporator coil conditions during the defrost cycle. Featuring a 98 inch blue lead wire, this NTC (Negative Temperature Coefficient) sensor provides technical flexibility for varied cabinet routing, ensuring the thermal connection remains isolated from moisture rich environments. As an authentic OEM component, it maintains the