The LiftMaster K79-13493-600 is an FDC logic control board assembly for select commercial fire door operators requiring the -600 microchip board application.
Commonly associated with KIT, SVC, MFG, PCB-ASSY, FDC, and microchip service references. It is also listed in some sources as a replacement board for FDC5021UL-style fire door operator applications.
This item is the FDC -600 board. The K79-13493-2-600 FDCL board and K79-13493A-600 FDOA board are separate suffix/application listings.
Commercial fire door operator board service should be handled by a qualified technician. Do not bypass stop circuits, safety devices, or fire-door control wiring during diagnosis.
Yes. K79-13493-600 is commonly listed as an FDC commercial fire door operator logic board with a microchip application.
No. K79-13493-2-600 is commonly tied to FDCL, while K79-13493-600 is commonly tied to FDC.
Some listings reference FDC5021UL-style fire door operator applications. Confirm by the parts diagram.
No. Power, wiring, limits, stop circuits, and safety inputs should be checked before replacing the board.
The suffix identifies a specific board version. A similar-looking board can have the wrong firmware or operator function.
