I have a Craftsman 1/2 HP Garage Door Opener. My problem is my garage door opener remote stopped working. When I changed the batteries, it still didn't work. Additionally, I am having problems reprogramming my keyless keypad. Does anyone have an owner's manual that can be sent via email or a website where I can download an owner's manual? The model # for my control button is 139.53681. Thanks. N.

Model Number of GDO?