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

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My Sears Craftsman Model 139 53684 Keyless remote garage door opener ceased to function. Battery is new, when I input my code and hit enter, nothing happens. When I try to reprogram, the worklight just keeps blinking to no avail. Any ideas?

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Make sure that when inserting the 9 volt battery that those red & black wires are not somehow pinched, twisted or stretched. I just fixed mine... The battery terminal was crushing one of the wires and preventing the battery to supply power to the keypad. I found it out by NOT securing the battery case door and my opener worked fine. Securing the battery case door with the screw and thightening, my opener DID NOT WORK. It was that simploe of a FIX!

Posted on Jul 06, 2010

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Your keypad has quit.

Posted on Apr 28, 2010

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1 Answer

Bought house with craftsman garage opener. Owner only had one remote. Bought a new remote at Sears that matched color code. followed instructions to code remote...that worked but made the old remote non...


Post the model number of the opener and the model numbers of the remotes. The opener model number is found on the end closest to the door and starts with 139.

Try programming the keypad like this:

Locate the smart/learn button on the rear of the motor unit near where all those white wires go. Press and immediately release this and then walk over to the keypad and key in any 4 digit code you like and press enter.

After programming the keypad see if either remote will work with it. Post this information also.

Oct 24, 2010 | Sears Craftsman LiftMaster Chamberlain...

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pressing all buttons firmly....
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Sears craftsman keyless entry for model 139.53684


If I am correct, there is a green button on the opener. Hold that down until it stop blinki ng. Once it has, pres the opener. It should read the code and work the next time you hit the opener remote.
If not, sorry. This has worked for me

Jun 01, 2008 | Sears Craftsman LiftMaster Chamberlain...

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