I have a Craftsman garage door opener, model 3009 53975. The key pad functions fine, unless the door is fully closed. With the door closed and the code entered, it won't open.
Locate
the smart/learn button on the rear of the motor unit near where all
those white wires go. Press and immediately release this and then
walk over to the keypad and key in any 4 digit code you like and
press enter.
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