The LiftMaster 41D4674-20 Receiver Logic Board Assembly is an OEM control board that restores the core electronics of compatible LiftMaster garage door openers. Serving as the system’s “brain,” it integrates the radio receiver for remote transmitters, wall control interface, safety sensor inputs, and motor drive logic to coordinate smooth opening and closing. This replacement part is ideal for resolving issues such as non-responsive remotes, intermittent operation, or error indications originating from a failed main board. For correct application, match the part number 41D4674-20 to the original label on your opener’s existing board or verify against the model’s official parts list from the manufacturer.
Installation typically involves disconnecting power, transferring terminal wires and wire harnesses to the same locations on the new board, and then reprogramming handheld remotes, wireless keypads, and travel limits using the opener’s Learn function. After installation, perform a safety reversal test and confirm proper operation of photoelectric safety sensors, in line with UL 325 guidelines. This genuine LiftMaster receiver logic board assembly is designed for residential garage door opener repair and maintenance, providing a reliable replacement for the main control board to restore normal operation and remote control performance when used with the correct, compatible operator.
Compatible with LiftMaster 1000SDR and 2000SDR models