SOURCE: how do I change the battery on a chamberlain
Remove the small screw near the bottom of the keypad and lift off the door.
SOURCE: I have LiftMaster garage door model 41A3039 and
To program the keypad, first unplug the garage door opener from the electrical outlet. Next remove the nameplate from the console that the keypad plugs into and locate the program/operate switch. Flip the switch to program. Next enter your desired four-digit PIN number into the keypad. Slide the switch back to operate and plug the garage door opener back in. The keypad should be programmed.
SOURCE: How do you program a craftsman keypad remote model
Press and immediately release the smart/learn button on the back of the opener and then walk over and key in your 4 digit PIN and press enter.
If this doesn't work the 2 units are not compatible.
If your opener doesn't have safety sensors in the doorway this keypad will not work with it.
SOURCE: The wired keypad (Chamberlain) of
You can try programming the keypad using the procedure below. To program the keypad,
first unplug the garage door opener from the electrical outlet. Next,
remove the nameplate from the console that the keypad plugs into and
locate the program/operate switch. Flip the switch to program. Next,
enter your desired four-digit PIN number into the keypad. Slide the
switch back to operate and plug the garage door opener back in. The
keypad should be programmed.
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