M3 2. 31. 2 Marantec Garage Door Opener Remote. Cookies are disabled. In order to shop on this Web store, you must have cookies enabled. Dungeon Keeper 2 Patch 1.7 Pl. For instructions on how to enable cookies, please see the help section of your browser. Once cookies are enabled please refresh the current page. Replacing a garage door opener is a common issue, and programming a remote control is easy. Please look at one of the scenarios below for the best solution to your. Liftmaster Garage Door Opener Programming Instructions' title='Liftmaster Garage Door Opener Programming Instructions' />The model 41A50211I circuit board is a replacement logic board for Security garage door openers from LiftMaster, Chamberlain, Sears Craftsman and others. Use this article for steps to erase the garage door openers memory for remote controls, keyless entries, MyQ accessories and gateway settings. Compatible with many LiftMaster 315MHz garage door systems, the replacement 41A50214M315 circuit board is simple to install and program.