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

3 Answers

In colder weather the garage door stops when opening half way.

This started last winter, went away all summer and now as the cold sets in is back. The door stops opening half way up. If you start to put it down and then hit the up button again it will go past that point. As of this past week it now stops at 2 or 3 points on the way up. What could be causing this. I have greased the screw drive regularly and have inspected for burrs or screw damage and there is not any. It acts like there is a binding or dead spot on the screw motor but the seasonality is odd.

Posted by on

  • 3 more comments 
  • packrat16 Dec 09, 2008

    My door does the same thing any time the temperature drops into the 20's or lower. After opening and closing several times (the colder it is the more it goes up and down) it will close for good. It works fine the rest of the time. I'd love to know what to do to fix it.

  • jokermia Dec 09, 2008

    Same as the other post - the colder it gets, the less my door will work. It will go up a little, then half, then a little, etc. I'll have to cycle through opening the door at least 10 times before it will finally work. I ONLY have this problem during cold weather.

  • richpaul Dec 11, 2008

    The colder it gets the lower the door stops in the opening mode. In the 30's it stops about half way, in the 20's it stops about a foot from the floor. It only happens when it gets colder outside. What can we do to fix this?

  • Anonymous Dec 26, 2008

    where are the up and down ajustments located on the LIFTMASTER FORMULA 1

  • smokem Jan 09, 2009

    I tried adjusting the force. I've disconnected the door itself. Everything is lubricated. Sometimes the door doesn't open or close at all, or it stops while moving. When it doesn't work usually within a minute or so if I try again it works. This is very frustrating.

×

3 Answers

  • Level 1:

    An expert who has achieved level 1.

    Governor:

    An expert whose answer got voted for 20 times.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

I had the same problem when it was cold the door would only raise a few inches and I had to keep pushing the opener numerous times before it would raise all the way.
On the back of the opener where the wires are connected there are 2 adjustment screws, one for up pressure and one for down. I increased the up screw and now it rsises all the way. Hope this helps.

Posted on Dec 10, 2008

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 2 Answers

Because I disengaged the door and the motor and chain continued acting up, I found the following:

The controls (potentiometers) that regulate force get dirty in time and make poor contact inside which become evident when cold as the contact springs separate from the track. Cleaning the inside of them is the solution, I injected 91% alcohol with a fine hypodermic (G27)needle through any spaces I could see leading to the inside of the potentiometers while turning them.
I suppose one can use any alternative electronics cleaner or the good old carbon tetrachloride.
I experienced a de-programing of the remote possibly due to wetness of of the board and I had to use a blow dryer to bring her back to function because I powered it while still wet; and reprogrammed it after. It works well now, I have too doors and fixed both the same way. Good luck.

Posted on Dec 27, 2009

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

I have the same problem also. i used silicone lubricant on all rollers and have moved the side rails away from the door.( my door would rub against the rails in cold weather) then i adjusted the up tension higher and that seems to have worked so far.

Posted on Jan 23, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My garage door will only open half way. It appears to be getting stuck when it is opening.


If you haven't gotten your issue fixed yet... I had the same problem (stopped opening half way when using the remote, went down fine, could lift/close manually fine as well) and this happened on our first cold weather day of the year which was very telling. Anyhow, there are two gauges/dials on your garage door opener unit itself (above, where the light is) which controls how much torque/strength your door uses to open or shut through resistance. I turned mine up some and it now works fine; what likely happened was that the metal tracks or the wood frame condensed in the cold and was providing just enough resistance to stop it when opening - as they have a security device built in to stop if they meet any resistance. Hopefully this helps!

Oct 27, 2012 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Our automatic garage door opener does not fucntion well in very cold temperatures (below 32 F). It will not close all of the way and will stop or will stop about half way down and return to the up position...


There is no adjustment for temperature. Make sure the tracks have not been greased. This sometimes causes a problem when it congeals from cold weather. There is no reason to ever lubricate the rails. You can try increasing the down force. It is a control on the rear of the motor unit near where all those white wires go. Increase it a 1/4 turn and try.

Jan 12, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door not opening properly.


Check the springs on your garage door. If one is broken, the opener will not have enough power to raise up and it will stop like that.Or the up and down limit settings have gone off or bad.

Dec 08, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Door will not work in cold weather.


Leave car outside. Seriously, try a little more force to force adjustments.

Jan 17, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Door opener only opens a little bit


i have run into this problem before this might be of some help
check your track and see if someone has greased it if so get a rag and solvent and remove all grease from roller track this track is never to be lubricated in the summer grease thins and lets dooor move but in winter grase hardens and acts like glue binding door past set limits.

Jan 06, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

1/2 hp craftsman garage door opener won't open when cold


I called Sears garage door customer service number due to the same issue. The test is to disengage the opener drive by pulling the emergency disengage handle, then open the door half way manually and then let it go. If it stays there it is a door/track/lub problem; if it drops down and closes its a garage door opener problem. Mine stayed open half way during this test so it was a door/track/lub problem. After using silicone spray on all tracks, rollers, and springs mine has been working great. Good luck.........

Dec 10, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door opener


You can turn up the up and down force on the motor head to give the unit more power. During colder weather the unit needs more power. Afterward do a 2x4 safety reversal test. thanks, BB

Sep 14, 2008 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Automatic Garage door reverses and automatically opens after closing


I can't believe it! My opener works fine a 10 degrees and above but below 10 degrees it would go down a little ways stop and go back with the light flashing. I checked the electric eye and found it would go out of alignment when the temp drop. Who knew!
I made the adjustment and it now works fine.

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

Not finding what you are looking for?
Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+ Logo

12,437 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sears Garage Doors Experts

Al Clark

Level 2 Expert

290 Answers

Cindy Wells

Level 3 Expert

4758 Answers

Pieter Vleeshouwers

Level 3 Expert

1420 Answers

Are you a Sears Garage Door Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...