Carrier 1010-919 Furnace Control Circuit Board

The Carrier 1010-919 Furnace Control Circuit Board is the integrated central controller used in Carrier, Bryant, and Payne gas furnaces, orchestrating ignition sequences, blower timing, safety interlocks, and thermostat communication. As an Integrated Furnace Control (IFC) board, it accepts 24 VAC control power and 120 VAC line voltage for use in residential and light commercial HVAC systems requiring coordinated ignition, blower operation, and safety monitoring. Ignition type is Hot Surface Ignition (HSI) or Spark Ignition depending on the model, and the board is chassis-mounted with multi-pin connectors and screw terminals for secure connections. Part numbers to search include 1010-919 and the alternate 3819M197112, with common replacements such as Carrier HK42FZ009, Carrier CESO110057, and White-Rodgers 50A55 universal boards.