Key pad and door opener installed about 15 years ago.
You may want to try re-linking it to the opener (this worked on mine).
If that doesn't work it could be the button are worn out or it could be something like the transmitter is faulty.
If it won't re-link with new batteries, i would just replace it.
SOURCE: craftsman remote -- new battery installed..
close the garage door, press the lock button so that's it's blinking, press the red reset button on the craftsman, then press the remote.... that should work
SOURCE: garage door opener key pad not working
so i spent the better part of this morning trying to figure this same thing out... here's what I found.
You need to identify the serial number, which is found on the unit hanging from the ceiling... it will be like a 13953970. I found mine behind the lamp light protector thing. NOT the back with the stickers. 41A5021 is actually not the number that is important.
then go to www.managemyhome.com its a website ran by sears. you have to register, for free. then go look for manuals, in one of the tabs running across the top of the site is a choice for manuals. then search by Craftsman then enter the serial number.
then pull up the owners manual and check out the instructions.
** i found out that the old house i bought did not actually have the same keypad opener as came with the craftsman. so i had to closely inspect all sides of the internal keypad opener (not the one outside) and find another serial number. then i went and got the manual from www.managemyhome.com and realized i needed to add a new 9-V battery before I could proceed. So now i'm heading out to walmart to get that.
after a frusterating morning of service number and internet searches I hope after I get this damned battery the clouds will part and god will shine some luck on me.
goodluck to yourself!
SOURCE: Remote does not open garage door
It sounds like the wall button has the lock feature engauged.
Is there a small green LED flashing inside the wall button?
Push and hold the lock button for about two seconds and the LED should stop flashing. This will unlock the garage door opener and your remotes should start working. You may have to reprogram your remotes and homelink again since you triedprograming in the lock mode.
Good luck.
SOURCE: keypad garage door opener will not operate
what keypad are you using with new opener? Frequency has changed. can't use old one. you probably never needed to change things; just needed to follow proper coding procedures.
SOURCE: Liftmaster wireless keypad closes but won't open the door
If you are sure the battery is good you have a bad keypad. The signal strength is so weak it will not penetrate the door.
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