which typically use a 7-inch diaphragm or different EPDM materials

Engineered for multi-refrigerant compatibility

Technicians should always match the microfarad range specified by the OEM

Model Number 71504902

a full unit replacement is necessary to maintain system integrity

York S1-031-03010-000 Control Board 322057-301 which typically use a 7-inchThe York S1 031 03010 000 Control Board is a genuine OEM single stage furnace control board engineered for precise sequencing and monitoring of York, Coleman, and Luxaire gas fired furnaces. This HVAC replacement circuit board functions as the primary logic controller, managing critical sequences including the hot surface igniter (HSI), inducer fan motor operation, and multi speed blower timings. As the designated York furnace part for modernizing