LiftMaster 041AC050-1M Receiver Logic Board, AC Chain
Receiver Logic Board, AC Chain
041AC050-1M is a 315Mhz Security + receiver logic board used on 1/2HP and 3/4HP Chamberlain and LiftMaster AC motor garage door openers made from 2005 to 2015. Unit will have a purple learn button. Check the manual or parts BOM for your specific model number before ordering to ensure compatibility.