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

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Keyless garage door opener will not work most of the time,

I have change the batteries several times and still have the same problem, It will aways close the door, but most of the time it won't open it, I think the metal braces inside the door is interfering with the radio signal. What do you think of the idea of adding wire to the reciever to make it longer?

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No u john h
have to push on the enter button 3 to4 times to open

Posted on Feb 17, 2009

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I have a Craftsman Keyless entry model 132B2386-6 with flashing lights, wont open. Already put in new battery still doesn't work


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https://www.liftmaster.com/Customer-Support/Videos

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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

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

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The Chamberlain wireless keyless entry model 940CD doesn't work. I changed the 9 volt battery, but it doesn't light up or do anything when I enter the password. It's like it's totally dead. I've had it for...


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.

Oct 25, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

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possibly bad relay/wireless board? keyless entry uses same board?

Aug 01, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Keyless Entry Problem


First try changing the battery in thh keypad 9V. if that dos not work just moving the wire coming from your opener towards your keypad. DONT CUT THE WIRE OR ADD TO IT. That should take care of it

Feb 10, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Outdoor keypad frequently doesnt work


IF REPLACING THE BATTERY DOESN'T DO IT YOU WILL NEED TO REPLACE THE KEYPAD.

NOTE: (IF YOU HAVE A ROLLING CODE SYSTEM) YOU WILL NEED TO REPROGRAM THE UNIT AFTER YOU CHANGE THE BATTERY.

HOPE THIS IS HELPFULL

Jan 19, 2009 | Sears Craftsman LiftMaster Chamberlain...

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