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

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Reprogramming remotes/system i wanted to know rather or not its possible to reprogram the entry control openers/system so that lost ones are no longer useable? i have a chamberlain whisper drive 3/4 hp.

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  • Anonymous Apr 30, 2008

    I have a model # 139.53683 reciever & a 139.53681B transmitter that I would like to recode. Your help would be appreciated.

    Del Bernais

    dmbernais@sbcglobal.net

  • parcelgirl Jun 08, 2008

    I have a Sears garage door opener. I need to change the code on the keyless remote pad. Someone help, Please.

    model # 53642SRT

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I have the same problem. There is no manuel because this came with the older home I purchased. I bought a Chamberlain universal remote that requires me to use a chart to determine how many clicks to make to program it. It's not listed. Wrong universal remote? Doyou know how many clicks are required for this?.

Posted on Jun 23, 2013

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Yeh, it is called reading the manual. Push and hold LEARN or SMART button for 10 seconds, Release, Push for 1 second and enter keypad code and ENTER, Kight bulbs should blink. Hit learn again for a second and push a button on a remote. Repeat for all remotes.

Posted on Dec 29, 2009

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The correct keypad for your opener is 139.53684. The 53876 keypad is an older technology and will not work correctly. If you program it you will find your remotes no longer work and if you reprogram your remotes the keypad will not work.

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Dec 15, 2008 | Sears Craftsman LiftMaster Chamberlain...

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MOST OF THE WIRELESS KEYPADS YOU DON'T NEED THE OLD CODE TO PROGRAM A NEW ONE.
JUST PRESS THE LEARN/PROGRAM BUTTON AND RELEASE YOU NOW HAVE 20 SECONDS FOR HER TO PUNCH IN THE CODE SHE WANTS AND PRESS AND HOLD ENTER. THE NEXT TIME SHE PRESSES THE BUTTON THE DOOR SHOULD WORK.

NOTE IT WILL WORK FOR ABOUT 20 SECONDS AFTER ENTER IS PRESSED THE FIRST TIME. AFTER THAT YOU NEED TO RE-ENTER THE CODE AND PRESS ENTER.
PROBLEM SOLVED HAPPY NEIGHBOR!!

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1 Answer

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There are two types of technology with this operator (rolling code and non-rolling code). This operator will except one or the other but not both. It is not uncommon for a rolling code (Security+) remote or keyless to lose the "rolling"part of its technology and become a non-rolling code device so it is not compatable with the rolling code technology. You will need to replace the one remote or keyless that is not like the others.

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