This is an overview of the Chamberlain D2101C 1/2 HP Chain Drive Opener, the cheapest chaindrive garage door opener at Home Depot when I bought it. It's a simple workhorse and I've been pleased with it. I'll show you my install and some tips along the way, it's not a stepbystep but I try to point out some things that aren't mentioned in the manual.
Support me by using my affiliate links below!
Chamberlain on Amazon: https://amzn.to/3EXqE7f