LiftMaster Chamberlain 41A5021-1I Deluxe Chain Drive Logic Board
The LiftMaster Chamberlain 41A5021-1I Deluxe Chain Drive Logic Board is the perfect replacement for your malfunctioning or worn circuit board system. It is very easy to install and is compatible with the LiftMaster 1200, 2200 or 4200 Deluxe Chain Drive system. We recommend that you also purchase a surge protector to protect your board from power surges and lightening
ROSE –
VERY SIMPLE AND EASY
I got this one for my grandpa as a gift as an advise from my grandma. I don’t really understand what is it but she said it will help him in his garage. he was happy with it and called later to say that it was simple and easy to understand. THANK YOU