Recent content by thebigdog123

Hi all, I have a 2015 Liftmaster 8500 wall mount unit. I am trying to swap the wall control from 889LM to 880LMW (as I have a new 8900W that only works with the 880 and I want the units to match.) The 880LWM does receive power - screen lights up and menu is active - but nothing useful happens...