Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+

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Clearing codes on liftmaster garage door opener with yellow learn button

Have a liftmaster garage door opener with a yellow learn button. tried to add a wireless keypad, but was sold the wrong one. since then, the garage goes up or or down with what appears to be other peoples garage door openers. I need to clear the codes and reprogram, but I have tried holding the learn button down for 6 seconds, 30 seconds, etc, but the led does not flash to indicate the codes are cleared, and the unit continues to open when other controllers are pushed. Don't know if there are different instructions for the yellow learn button controller, or if you have to jumper something. Help much appreciated.

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  • Anonymous Nov 15, 2008

    I'm having exactly the same issue. If I find out how to clear out the codes, I'll let you know.

  • Anonymous Mar 01, 2009

    I am having the same issue with mine, have you been able to reslove the problem?

  • ic4paws Apr 19, 2009

    I have the same problem. Thought I was going nuts! :o)

  • ruffnerpkl
    ruffnerpkl Feb 06, 2012

    Has anyone resolved this issue I am having the same problem

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  • 244 Answers

You seem to be doing right thing, hold learn button for 10 seconds, this should clear out all coded items; keypads, remotes.

Posted on Jan 15, 2009

  • abelardo_us Dec 30, 2010

    I have the same problem. This recommendation haven't fixed the problem

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SOURCE: Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+: I cannot reprogram the keypad outside the garage....

Make sure the battery is good and then locate the smart/learn button on the rear of the motor unit near where all those white wires go. Press and immediately release this button and then walk over to the keypad and key in a 4 digit code and press enter.

Posted on May 05, 2010

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Posted on Jan 02, 2017

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1 Answer

Liftmaster Garage Door Opener won't clear codes


This was a first generation learn button model. Antiquated by current technology standards. It was a two channel system. One channel for a dip switch remote, the second for a 66LM key pad. No way to erase the programming, however, by programming in a dip switch remote (61LM with the dip switches set to new positions, and a 66lm set to a new entry code) will purge the two channels of their previous memory, now set to the the new settings.

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1 Answer

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To clear all codes.
Hold down the yellow button for 30 seconds.

Now you can program remotes and keypad.

Remotes - press and release yellow button. press button on remote and hold for 5 seconds. The next time you press the remote the door should move.

Keypad - press and release yellow button. within 20 seconds put in desired code press and hold enter button for 5-10 seconds. again the door should move the next time you put in the code.

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