I just spent a great deal of time programmng this garage door opener because the directions on the back of the opener unit are wrong. I tried to find instructions somewhere on this website and found that there are none. Numerous products have owner manuals and use information on line. I normally don't read all of the comments on a product, but fortunately did so for this product. The correct directions were in another comment. Finding the correct directions shouldn't be this difficult for a product as simple as a garage door opener.