I just moved into this house and didn't get any owner's manuals. The garage door opener is a Sears Craftsman, model 139.53600. The remote that is outside the door has a model number 31D302A stamped on it, but no brand name that I could see.
I saw some instructions that said to 'press the red button on the back of the main unit, to put the opener into learn mode,' but my opener does not have any buttons on it.
So, can anyone help me in the programming of this remote with this opener?
Thanks for any assistance.