The LiftMaster 41DS002-2 Logic Board is a genuine OEM control board designed to replace the original electronics in select LiftMaster operators. As the central controller, it manages motor operation, travel limits, safety sensor input, and radio control reception to restore proper performance when the factory board has failed or become intermittent. This replacement logic board is intended only for operators that specifically call out part number 41DS002-2 in their parts manual or on the existing board’s label.
Installation typically involves disconnecting power, transferring wire harnesses and terminal connections one-for-one from the old board, securely mounting the new board, and then reprogramming remotes/wireless keypads and resetting door travel limits as required by the host operator. For safety, unplug the opener or lock out power before servicing and verify proper alignment and operation of photoelectric safety sensors after replacement. Compatibility, programming steps, and any radio features depend on the exact LiftMaster model using this board; consult the owner’s manual or LiftMaster support with your opener’s model number to confirm 41DS002-2 is the correct replacement.
Compatible with LiftMaster model 3840