Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+
I do not have the manual for the opener. I went by the instructions on the lid of the outside Key Pad to change the PIN from the old one to a new one. The problem is, it did not cancel out the old one, now both numbers work to open and close the door...
How do I get rid of the old number?
Here's a link for chamberlain garage door opener manuals.
Posted on Jul 16, 2008
You need to reprogram the system please follow the instruction:
To re-set your code, please follow the steps outlined below:
1) Unplug your garage door opener from the electrical outlet.
2) Open the cover on your inside wall console. You should see a 9 Volt battery and an adjacent PROGRAM/OPERATEswitch. Slide the switch to PROGRAM.
3) Enter your new 4-digit code into the keypad outside.
4) Slide the switch back to OPERATE and replace the console cover.
5) Plug the garage door opener back in to the electrical outlet.
6) Test the new 4-digit code. (If the keypad does not illuminate, replace the 9 Volt battery)
IF you want more information you can click on this link:
Posted on Jul 16, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
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NOTE: This method requires two people if the Keyless Entry is already mounted outside the garage.
Change an Existing, Known PIN
If the existing PIN is known, it may be changed by one person without using a ladder.
The motor unit lights will blink once when the PIN has been learned.
Test by pressing the new PIN, then press ENTER. The door should move.
Your new Keyless Entry must be programmed to operate your garage door opener
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the four buttons for the present PIN, then press and hold the #
button. The opener light will blink twice. Release the # button.
the new 4-digit PIN you have chosen, then press ENTER. The motor
unit lights will blink once when the PIN has been learned.
Test by pressing the new PIN then press ENTER. The door should move.
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