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

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Door needs assistance to open all the way - Chamberlain Liftmaster

Have a Chamberlain Liftmaster. When the remote button is pushed, the door will go up about one foot then stop. Sometimes it will go all the way up on the second try. Some times it takes several tries. Sometimes it won't o up at all unless I help lift it up.

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  • dennishuns Dec 21, 2008

    Motor runs ,but only lifts door occasionaly

  • rbrovold Dec 22, 2008

    this only seems to happen to my sears gdo when it' very cold. It will go up about a foot and stop. It takes multiple attempts to get it to open all the way. My springs were just replaced a year or so ago.



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Watch the door go up and down to figure out the problem, but it sounds like a problem with the springs. We have had similar problems with our garage and it is usually because one spring has more tension on it than the other so when it tries to go up one spring pulls more than the other and the door gets wedged on the rails. I have found this usually occurs when the springs get older and they usually break a short time later. The best solution I have is to check and possible replace the springs.

Posted on Oct 19, 2008

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My Chamberlain Liftmaster Formula 1 garage door (2002) has stopped working. The power is on -- light turns on when I push the wall mount button. But the remotes no longer work. The door does not move. ...


The light by the learn button may be sending a diagnostic code. See if it is flashing a number of times, pausing and then repeating. Count the flashes. Is your door stuck in the open posititon?

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My remote opens my garage door but will not close it. It starts to make a clicking sound when the remote button is pushed to close the garage door. It is a chamberlain Liftmaster with wireless key pad....


Check your door sensors. Make sure they are pointed at one another and the small light on each one is lit and not flashing. Tweak them a bit. If you cannot get both lights to come on you have a bad sensor.

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1 Answer

Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+: My craftsman 1/2 hp garage dood does not close whe...


If the main light flashes 10 times when you try to close the door it is a sensor problem. Make sure they are not flickering ever so slightly and that they are not loose on their brackets. Tweak them a little bit.

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1 Answer

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you will need to train (link) the remote to the garage door opener. to do this you will need to find the remote "train" button on the operator.
If you have the manual for the garge door opener this will show you where it is located.
push the train button on the operator, an LED light will start blinking. Then push one of the buttons on the remote. the LED light on the operator will stay on. push the button on the remote again and the light on the operator will turn off.
try the remote it should work now.

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1 Answer

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You have to sync the remotes to the new code. For older remotes, you can open the remote and match the pin settings.

For newer remotes there's a button that you push in the back of the opener that sets in program mode (for Chamberlain). When you push the remote button, it will acknowledge the remote is programmed.

If this doesn't help, comment back on your particular model and we'll help you with the solution.

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didnt try everything cause if you did, it would work! Get two people and garage door opener. One read manual from car under Garage door" or Homelink while other pushes button. When manual says if this did not work or if you have security plus or rolling code, continue with other instructions. You will need a working remote and will need to pushh learn button on motor logic board.

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Okay...upon further inspection, my left spring has broken in two. Going to call around for some quotes to replace the spring. Thanks for the suggestions.

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does it have a learn button. push it and push remote button.

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