Description
The York S1-031-03882-000 Furnace Circuit Board is an electronic control board used in gas furnaces within HVAC systems. It manages core system operations, such as ignition sequencing, blower operation, safety monitoring and communication between sensors, and components. It is used inside the furnace control compartment, the board coordinates signals from thermostats, flame sensors and limit switches to regulate heating cycles in the systems. Its role is central to maintaining safe, stable operation and consistent temperature control in system heating applications.









