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

9 Answers

Trouble changing passwordon model 940CB wireless keyless entry

When attempting to change the password, instructions tell me to enter current password and press and hold # key. Opener light should blink 4 times. Light doesn't blink, but door opens. If I let door close completely, I am unable to open the door using the keyless pad. I am unable to change the password. Can you help?

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  • Syls May 20, 2008

    Mine is model 940CB. I already have the instructions--they simply don't work.

  • Syls May 20, 2008

    I have the printed instructions. They simply don't work. Yes, I did try setting up a temporary pin first and that too doesn't work.

  • Syls May 20, 2008

    I already have the programming instructions. They simply don't work.

  • Syls May 20, 2008

    Thanks! I'll give this a try.

  • Syls May 20, 2008

    I tried your suggestion and it didn't work.

  • Syls May 20, 2008

    I'm still looking for a solution rather than a new purchase. Thanks anyway.

  • Anonymous Jun 20, 2008

    Previous owner left with code to keyless entry. How do I reprogram pad?

  • Anonymous Jul 02, 2008

    Exactly the same issue

  • topherhuff Dec 02, 2008

    bought a bank repo so no one knows the old code to enter so I can change to a new code.

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Easyer then that , you die! Open your garage door, take out the step ladder, a chair or get up on *********** in law's back, (here's your chance to be on her back for a change) press the read button of your unit (motor) a led should light up and on the key pad, key in the new 4 digits code and press enter, the light of the unit should blink javascript:; Post Solution

Posted on Jun 06, 2009

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Forgot password and cant change nothing works

Posted on Nov 06, 2008

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I took a ladder went up and pushed the learn button once. The light comes on steady, then go to the remote and put in the 4 digit code you want and press enter. That's it, it worked.

Posted on Feb 02, 2010

In Canada Chaimberlain has a really helpful telephone line with an IVR that does get you to the fix quickly. And it did solve my issue with the remote. My problem was the previous owner of the house did not leave the code. The basic steps were.
1. Make sure the battery is good.
2. On the motor unit of the actual garage door opener press the learn button, mine was under a white plastic bulb cover that I had to remove.
3.While the learn button LED remains on for 30 seconds, on your keyless remote type in your four didget code that you want and then hold down the enter button for 5 seconds.
4. The light on the motor unit then started to flash confirming it had learned the code from the keyless remote.
5. Try the keyless remote by pressing your four didget code, then pressing enter. Your door should work.

Posted on May 25, 2008

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To the guest's question. normally on liftmaster products you need to hold the 'learn' button on the back of the operator for 8-10 secs (till the led goes out). Then have all your remotes and keypad handy and reprogram them all. Push the button on the back of the unit then one of the remotes (1-2 sec) light will flash. Then repeat for the keypad press button and go enter your 4 digit code and hold enter 1-2 sec.

Posted on Jun 27, 2008

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You can download the re-set instructions here:
Liftmaster 971LM Programming Instructions


    LiftMaster 976LM Security+ Wireless Keyless Entry System
  • LiftMaster Wireless Keyless Entry System with Security+ Anti-Burglary Coding
  • Compatible with ALL Security+ systems, including Chamberlain, Sears, Craftsman and Raynor code rolling residential openers (Safety Signal)
  • Compatible with Liftmaster remotes models 91LM, 96LM, 970LM, 971LM, 972LM, 973LM, 974LM.
  • Compatible with Chamberlain remotes models 950CB, 953CB, 956CB.
  • Compatible with Sears remotes models 139.53681 and 139.53680
  • This unit is the same as the Chamberlain model 940CB, Sears model 139.53684 and the Liftmaster 67LM (old model number)
  • Compatible with garage door opener operator model numbers 1240R, 1245R, 1246R, 1255R, 1256R, 1265, 1280R, 1000SDR, 2000SDR, 1245 GMR, 1255GMR
  • Compatible with Security+ garage opener receiver model numbers 335LM, 535LM, 412HM, 635LM
  • Easy mounting to your garage door jamb with just 2 screws
  • Lets you open your garage door without remote control or keys
  • Code changes every time you use this unit (defeats code grabbers)
  • Over 100-billion codes for maximum security, compatible with models manufactured from 1997-present WITH an orange or red "learn" button.
  • This Keyless Entry also features a temporary password option to let you give friends, relatives or maintenance people limited access

Posted on May 19, 2008

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Hi Syls

Click HERE to view the online manual.

Is the buttons flashing the required two times once you've held in the # key ?

Try setting up a temporary pin first and then changing it back to a normal one again.

Let me know once you've tried it please.

Posted on May 19, 2008

  • Marnus Jacobs
    Marnus Jacobs May 20, 2008

    Hi Syls



    I think that the keypad is faulty and will most probably need replacement because it is not even flashing the same number of times when you enter the new pin either standard or temp. mode.



  • Marnus Jacobs
    Marnus Jacobs May 20, 2008

    Hi Syls



    Have you tried switching off the power for 12 hours and then retrying the procedures yet ? This should do a hard reset wich might just do the trick.



    The power should in other words be shut off completely.

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Enter first the default password. default password is listed in manual, I think it is 1234

Posted on May 19, 2008

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This might be a helpful website for you

http://www.aaaremotes.com/liftmaster.html

Posted on May 19, 2008

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1 Answer

I have a craftsman garage door opener, of which I tried to program a new remote. but it did not program. in the event I accidently errased my keypad password. How can I reprogram the keypad, i cannot...


Hello there,
It actually depends on what you are trying to program. And these instructions apply only to openers that do not have dip switches on them.
Remotes: push don't hold the colored learn code button all models have different colors. After pushing the button hold the remote behind your back and push it three times. On the third time the door should run.
Keyless Entry: Program the code you want into the keyless. Push the colored learn code button and then enter the code and push enter three times slowly. on the third time the door should run.
Home-Link. Hold the two outer buttons until the blinking pattern changes. Then hold the button you wish to program and point and click your remote at it. Push the colored learn code button and push the homelink button three times.
There are two models of the Wireless Keyless Entry System, the 740CB and the 940CB. The 940CB is for use only with Security+® garage door openers having an orange/red smart/learn button. The 740CB will work with all openers manufactured since 1990 that have a yellow, white, gray, or green smart/learn button. It will not work with Security+® openers.
To program the keyless entry, first locate the smart/learn button. On our chain drive models, this button is on the end farthest from the door. On our belt and screw drive models, it is on the right side as you face the door from the opener. You simply press and release the smart/learn button. You now have 30 seconds to enter your four digit PIN number into the keypad and hold the enter button for five seconds. Wait one minute and test the keyless entry by entering your four-digit PIN number and pressing enter.
With some Security+® models, you can also program your Model 940CB Wireless Keyless Entry without climbing a ladder, right from your Multi-Function Control Panel. Simply enter your pre-selected code and press and hold the enter button on your Keyless Entry. Then press and hold the light button and the pushbutton on your Multi-Function Control Panel. The garage door opener lights will flash to confirm that the Keyless Entry has been successfully programmed.
Hope this helped you solve the problem. All the best my dear friend. Elect_Comp

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Model 940CB/67LMTrouble free for 10-12 years. Now with a new battery after code + enter it will flash about 60 times very fast will not open the door. The door opener works fine with the button on the wall...


You can try programming it but I have a feeling it is bad.

Locate the smart/learn button on the rear of the motor unit. Press and immediately release this and then walk over to your keypad and key in your 4 digit code and press enter.

If this doesn't work you will need a new keypad.

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I just bought a house that has a wireless keyless entry model 940CB. I do not know the previous owners password. How do I change the password without the old password?


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 your keypad and key in any 4 digit code you like and press enter.

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How do I change the code on our liftmaster 1/3 H.P. gargage opener


To program the keyless entry, first locate the smart/learn button. On the chain drive models, this button is on the end farthest from the door. On the belt and screw drive models, it is on the right side as you face the door from the opener. You simply press and release the smart/learn button. You now have 30 seconds to enter your four digit PIN number into the keypad and hold the enter button for five seconds. Wait one minute and test the keyless entry by entering your four-digit PIN number and pressing enter.

With some Security+ models, you can also program your Model 940CB Wireless Keyless Entry without climbing a ladder, right from your Multi-Function Control Panel. Simply enter your pre-selected code and press and hold the enter button on your Keyless Entry. Then press and hold the light button and the pushbutton on your Multi-Function Control Panel. The garage door opener lights will flash to confirm that the Keyless Entry has been successfully programmed.

To program the keypad, first unplug the garage door opener from the electrical outlet. Next, remove the nameplate from the console that the keypad plugs into and locate the program/operate switch. Flip the switch to program. Next, enter your desired four-digit PIN number into the keypad. Slide the switch back to operate, and plug the garage door opener back in. The keypad should be programmed. You can find additional information at:
http://www.usdoorcontrol.com/kbase/liftmaster-main.html#14


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make sure it is the right keyless entry. For starters, Make sure your antenna hanging off the operator is "purple" color. If it is grey, you have the wrong keyless entry. The keyless you have is for the 315 frequency. If your antenna from the operator is grey, you need to get another keyless entry based on the frequency.

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your owner manual tells you how to personalize your own code. you enter the permanent code first, then add your code by folowing owner manual instructions.

Usually, it's enter permanent code, hit 1, enter your digit code, enter 1.
But some vehciles are different

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Changeing code for garage door opener


If you want to change the keyless entry code just press the green learn button on the motor, Enter a four digit code and press the enter button within 30 seconds.

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