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

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Keyless Entry won't work when it's cold

The last couple of months I noticed that the keyless entry won't work when it's really cold. If the weather warms up it works again. I thought maybe it's the battery and changed it today but, it still doesn't work. Is the problem still there or do I have to re-program the keyless entry now?
Thanks,

Ute

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I have the same problem....pretty sad...one week of cold weather and it will not work. Reprogrammed it but only worked for the reprogramming. I wonder if there is a way to cover the pad

Posted on Jan 04, 2013

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I HAVE THE SAME PROBLEM, I BELEIVE IT IS THE WEATHER . THE ONLY WIIRELESS THAT DOES WORK IS THE CLICKER. I HAVE NOT HAD WITH THAT ONE.. U COULD TRY RE-PROGRAMING


Posted on Jan 25, 2009

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Posted on Jan 02, 2017

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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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1 Answer

Only Keyless entry or remotes can be programmed but not both


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Jun 25, 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

Keylees entry and remote controls do not work at the same time


There are two types of technology with this operator (rolling code and non-rolling code). This operator will except one or the other but not both. It is not uncommon for a rolling code (Security+) remote or keyless to lose the "rolling"part of its technology and become a non-rolling code device so it is not compatable with the rolling code technology. You will need to replace the one remote or keyless that is not like the others.

Nov 15, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Keyless entry pad for garage door opener


THE FREQUENCY OF THE UNITS ARE PROBABLY NOT COMPATABLE THEY CHANGED ABOUT 2 YEARS AGO.

SORRY - I THINK YOU NEED A NEW KEYPAD TO GO WITH THE NEW OPENER.

Oct 22, 2008 | Sears Craftsman LiftMaster Chamberlain...

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