Carrier CESO110031 00 Logic Board 322056 301 it is the industry standard it is the industry standard for technicians seeking OEM HVACR parts that eliminate the risk of external leaks through synthetic coated metal gaskets it is also the factory authorized replacement for compatible models under the Coleman and Luxaire brands belonging to the same product families Verification of the furnace control board wiring diagram is essential during installation to ensure the microprocessor based control correctly interfaces with the flame sensor and limit switches for optimal system safety and efficiency failure to initiate the ignitor sequence despite receiving a call for heat