Chamberlain Chain Drive Garage Door Opener Overview & Install

This is an overview of the Chamberlain D2101C 1/2 HP Chain Drive Opener, the cheapest chain-drive 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 step-by-step but I try to point out some things that aren't mentioned in the manual.

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