RX/LX 41A5021-2

This manufacturer-approved receiver logic board (part number 41A5021-2), which is often identified by the initials RX/LX, installs in Craftsman garage door opener model 13953662SRT1 to detect signals from the remote control and to transmit commands to the mechanical components of the opener. Some models of Chamberlain openers also use this board.

• Unplug the garage door opener before installing the receiver logic board.
• After completing the repair, perform all the safety checks explained in the owner's manual for your opener.