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

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I believe I accidently changed my password to one I now don't remember. The manual keypad entry system is not working. The door opens fine from the inside of the garage when I press the opener button. Note: I've lost or misplaced the unit tha goes in the car. I.m fairly sure I can find it. However, if I don't. how do I obtain a replacement one that will work with my system. Thanks for your assistance.

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Without the manufacturer or model number no one can tell you.

Posted on Sep 03, 2010

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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

Sep 02, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

For lift master 976 keypad: I cant seem to delete the current password for the keypad entry. It allows me to change to a new password but it retains the original password as well. Even when I do it by...


If you press and hold the smart/learn button for 6 seconds it should erase the memory and none of your remote unit should work. Just remember you will have to program them all.

Apr 10, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Some reason keyless entry won't open my garage door. I have directions to change the code but, there is nothing in the manual if your code no longer works. I have changed the battery, pulled the plug on...


If that keypad quit after working since 1997 and a new battery didn't get it going it has just gone bad. The model number listed for your opener is now 53876.

Oct 04, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

OLD garage door opener


Sounds like you have the keypad that is hardwired.

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 into the keypad. Slide the switch back to operate and plug the garage door opener back in. The keypad should be programmed.

These instructions may not work if the keypad is some other manufacturers.

Aug 23, 2009 | Sears Craftsman LiftMaster Chamberlain...

3 Answers

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...

9 Answers

Trouble changing passwordon model 940CB wireless keyless entry


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

May 19, 2008 | Sears Craftsman LiftMaster Chamberlain...

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