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

5 Answers

Craftman garage door opener, will not go all the way up.

This only happens when the temperature drops. During the summer months never had an issue. This happened last year during the same time period

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  • Anonymous Nov 18, 2008

    My doo opener is about 12 years old. Same problem; only happens when it gets too cold, like today in Michigan.

  • Anonymous Nov 20, 2008

    I have two 139.53824 SRT 1/2 hp openers that were installed at the same time. One works in cold weather and the other doesn't. This has been going on for many years now. Weird.

  • winkie nood Nov 30, 2008

    Craftsman 1/2 HP  garage door spring type will not open all the way in cold weather

  • binky 1 Dec 03, 2008

    When cold door opens a little then stops. I have to push the remote or wall unit numerous times to get it up. No problems going down.

  • bjaeger Dec 05, 2008

    This happened to us and it was a 'little cracked plastic piece" of the safety sensor kit. (cheap)
    Good luck trying to get a replacent part from Sears with your "guaranteed warranty" on parts. They will tell you they have to have a technician cone out which costs $ 69.95- more than the part itself!
    Sears is a rip-off and a store where I will never shop again! They do not care!

  • Anonymous Dec 06, 2008

    We have the same problem also. Only when the temp drops. My husbans discovered if you press the inside remote twice quickly it continues all the way up

  • ben624 Dec 06, 2008

    Same problem. When it's warm, it opens OK, when temp drops, it stops halfway and I have to hit the remote again - sometimes it stops again, and I have to hit the remote again.

  • Anonymous Dec 31, 2008

    In the cold weather my craftsman garage door opener will not open all the way up.

  • Anonymous Jan 08, 2009


  • smokem Jan 08, 2009

    Have the same problem, started about 1 month or so when it got colder. Usually have to hit the button and wait a minute or so then it will work. Otherwise the unit just clicks. Tried adjusting the Force screws, no help. Also, sometimes the door will stop while moving. Disconnected the door, no help.

  • Anonymous Jan 15, 2009

    will not go all the way up. Stop a quater of the way then go back down

  • dmelz606 Jan 16, 2009

    I have a similar problem. With the cold weather upon us, the door will only open/close a few inches and then go back up. We have both a keypad and a button inside. I finally got it to close by holding down the 'doorbell' button until it closed and then let it go. I'm not going to use it until I figure this out. Any ideas anyone??????

  • simmons2 Jan 18, 2009

    me too. It goes up about 40% of the way.

    If I disengage it, the garage door easily lifts all the way.

    And it will automatically re-engage and closes fine.

  • dufree72 Jan 18, 2009

    i have the exact same problem. i have tried moving the rail away from the door because i thought there was an obstruction when i gets cold and it stil stops.



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1.Check to see if the door is running correctly. 
  A. Run the door down and pull the emergency release. See if the door will run easily by itself.
    1. If it runs hard by hand try lubricating the rollers and hinges with silicone spray or some form of               lubricant (not WD 40)
    2. If the door is heavy and falls back to the ground, you probably have a spring issue (either broken           or needs more tension) in this case call a professional door repair company in your area.
  B. If the door runs fine then check the up force on your operator (the box that hangs from the ceiling          and reads Craftsman). If the light(s) on your operator go from front and/or back, the force                      adjustment screw is on the back of the operator. If the lights are on the sides of the operator then          the force adjustment screw is on the right side (looking from the back of the operator and facing            the garage door). Turn the light blue adjustment screw with the up arrow to a higher number.

Posted on Jan 01, 2009

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I had the same problem on a Sears GDO. I adjusted the Force Control Adjustment Screw on the side of the unit up a bit to increase the power when lifting the door. It works fine now.

Posted on Jan 19, 2009

  • Joe Carnemolla Jan 04, 2013

    After years of frustration, your solution just fixed my door. Thank you.


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On the back of the door opener unit, where the motor is, there are some adjustment screws. One is for down force, another for up. you should be able to adjust these to overcome the problem, which is caused by cold grease offering too much mechanical resistance to the motor's sensor (which is normally meant to keep the door from crushing someone caught under it).

Posted on Oct 17, 2010

  • mommydba Oct 19, 2012

    I know that this post is dated, but THANK YOU THANK YOU THANK YOU!!!! It worked! I've been bugging my husband to address this for over 4 years now. Finally, I just googled my issue and this popped up.


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During the summer , we leave the garage door open about 6" to vent the garage-since having a new spring installed , we cannot do this as the garage door literally falls all the way shut,

Posted on Jun 12, 2009

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Possible interim solution. Or dumb luck. I just finished posting an I-have-same-problem statement on this site. Problem being: GD won't close when temp dips below approx. 40 degrees F. (Garage is not attached to the house.) This has been plaguing us for two years. My wife suggested using her hair drye on the drive unit; you know, the box where all the guts are located. Outdoor temp is 37 F. here in Eastpointe, MI. I directed the heat from her hair dryer all around the box -- back, front, sides, bottom -- for maybe three minutes. I was disapppointed when the door still would not close immediately afterward when I pushed the button on the remote. However, a few minutes later, after I got in the house, I pressed the button again and the door closed.

Posted on Nov 30, 2008

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