17122300003954 – Main Control Board

Factory‑Authorized Replacement Part

The 17122300003954 Main Control Board is the OEM factory‑authorized replacement for compatible mini‑split and HVAC condenser systems. This board manages all primary condenser functions, including compressor operation, fan control, communication signals, and system safety logic. Designed for reliable performance and seamless integration, it restores proper operation when the original board has failed due to electrical faults, component wear, or system malfunction.