The Logic 3 LiftMaster K1A5729 Commercial Garage Door Opener circuit board is compatible with G, GT and GH LiftMaster jackshaft system models.
To program remote controls, simply:
• Press and Release the Radio button on the logic board and an LED will light.
• Press and hold the remote control’s button until the logic board’s LED begins to flash. Release remote control button and LED should stop flashing and remain lit. When the LED is solid, the remote control is programmed.
• Press and Release Radio button after remote controls are programmed.
LiftMaster logic board K1A5729 features a self-diagnostic, simple LED button system to aid in your system’s programming.