How do you program a craftsman garage door opener 139.53876?

Answer 1

Here are the official instructions that came with the device:

1. Lift the cover to access the keypad. Figure 1. Decide on a 4-digit code using numbers 0 to 9. You can use a number more than once (for example, 4, 0, 4, 1).
2. Press the selected code digits on the keypad; then press and HOLD the ENTER button, and press the SRT button on the opener end panel (behind the Control Center for screwdrive), Figure 2. (my note, this is the green button).
3. Depending on your opener model, when you press the SRT button either the opener light(s) will flash or the garage door will begin to move. Release the ENTER button.

The opener has now learned the selected code and will respond to future keypad commands.

My notes: That is the official instructions. Works similar to a non-keypad transmitter. Unfortunately the green button (SRT) on the back of my opener does not seem to work. It will not clear codes or anything

On the door opener attached to the ceiling by where the wall button wire attaches there should be a 1/4 inch square GREEN button. Push this and it should stay on or flash. Then push the button on the transmitter. The button on the opener should flash, this means it has recorded the transmitter. For a keypad control, On the door opener attached to the ceiling by where the wall button wire attaches there should be a 1/4 inch square GREEN button. Push this and it should stay on or flash. Once the button is on, you have 30 seconds to enter a 4 digit code in the keypad and touch Enter. The keypad on the key panel control should flash. Enter the 4 digit code again and the door should open/close.