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

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Craftsman 1/2 Recently, my garage door came off track. I fixed that problem but now my remotes and outside panel won't work. I tried to reset them with the learn button but the door will only move a couple inches and stop and the light flashes several times. I don't have a manual and can't seem to find one for this model (139.53681B) Any help would sure be appreciated.

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  • Contributor
  • 504 Answers

Try free pdf download

http://www.garagedooropenerguide.com/installationmanuals.html

The diagnostics in the manual should help.

Posted on May 30, 2010

6 Suggested Answers

pgh_pa_guy
  • 2992 Answers

SOURCE: craftsman outside keypad

On the back panel of the opener itself is a small pushbutton. Press the button and the indicator near it will light. While the indicator is lit, enter the new 4-digit code on your keypad and it will be set. (You are actually programming the receiver with the new code this way. The wireless keypad doesn't store a code.) The programming light goes off on its own.

Posted on Feb 13, 2009

  • 3197 Answers

SOURCE: I have a Craftsman 1/2 HP model #13953975SRT1.

It is normal for it to blink randomly. If you watch it while you press your remote you will see what it looks like when it is receiving a properly coded signal.

Posted on Jun 01, 2009

  • 3197 Answers

SOURCE: owners manual for Craftsman garage door opener

This is available from Sears. The part number is 114A1930 and it sells for $4.99.

Posted on Oct 05, 2009

  • 3197 Answers

SOURCE: garage door opener won't close. travels 6-8 in.,

If you cannot get the light on the sensor to come on by tweaking it,making sure it is pointed at the other sensor and your wiring is not broken or shorted then your sensors need to be replaced.

Posted on Jan 08, 2010

  • 16 Answers

SOURCE: how to program keypad outside of garage

Don0930's answer is for the wireless keypad most folks have. My 1993 opener has a digit type keypad that is wired to the opener motor. See if yours is. It doesn't run on batteries but has a plug in transformer box to work. If you have one like mine, then you have an indoor button on a plastic box. You can lift the cover off that box, where it says "Sears digital solid state control" (pries off at the seam) and inside you will find a switch, with two positions, one is "program" and one is "operate". Flip it to program, enter your 4 digits, flip it to operate. Should do it. There is a place for a 9v battery under that same cover, it holds your code in a power failure. I think if you have a dead battery, and the unit loses power, it defaults to 1234.

Posted on Feb 13, 2010

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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