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

1 Answer

LiftMaster Gargage door opener problem

Whenever I close my garage door it goes to the bottom of the door and then opens itself back up automatically. Any suggestions?

Thank you.

Posted by on

  • Anonymous Jul 29, 2008

    Same issue the door keeps open up when it reaches the bottom. One of teh sensors lights is orange and cannot seem to align it to get a green light.

  • Anonymous Oct 18, 2008

    door won't stay in adjustment

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 158 Answers

The door obstacle detector(reversing switch) needs adjustment, or the down limit sensor needs adjusting, or one of the lift springs is loose or broken. First, remove power from the opener, pull the red door release rope, and try to lift the door up manually. You should be able to lift it all the way open with litle effort. If it opens ok, pull the door down about halfway and let go. If it is properly balanced, it should stay where you left it. If the door fails either one of these tests, it needs spring replacement or adjustment. If the door moves ok, refer to your owners manual on how to adjust the reversing switch, linit switches, and photocell sensors at the door bottom.

Posted on Aug 02, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

The garage door seems to pick up speed the last two feet when closing then it automatically goes back up


Sounds like a spring tension problem. Best toi call a professional as retensioning the springs can be a source of serious personal injury.

Sep 12, 2014 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+: Door goes down and when it reaches the bottom, it ...


If the door hits the garage floor and then reverses to the open position you need to adjust the 'down limit' which is on the side of the motor unit. Turn this control in the opposite direction of the arrow printed on the cover. Some tweaking will probably be necessary.

May 16, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door opening when hitting close button


If the main light is flashing 10 times when the door reverses to the open position it is a door sensor problem. Make sure they are pointed at one another and the small light on each one is lit. Tweak them a little if necessary.

Sep 21, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

How to switch back to automatic after manually close the garage d


mikey-moore's advice helped me figure out what to do but it's not exactly what I had to do. Manually open the garage door all the way. Then hit the automatic button you normally would use to open and close your garage door. The bracket slides back and locks into place. Hit the automatic button again and the garage door should automatically close.

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

1 Answer

How do you reset your codes in the liftmaster/remotes. ours goes up and down varies times of the day,found out our neighbors remote is doing it. all new houses where we live have the same garage door...


press and hold learn button for 10 seconds and then reprogram your remotes by pressing and release learn button and then press and hold remote button. The big lightbulb on the motor will flash once.

May 14, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Sears garage door opener problems


We had the same problem.  open the unit and checkt the connections.  we had a few loose wires and every time there was a vibration whether a low flying plane or a truck nearby the door went up.  My husband found a few of the wires had loosened up.

Jan 05, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman garage door opener


IF IT HITS THE FLOOR AND GOES BACK UP. YOU NEED TO ADJUST THE DOWN LIMIT.

IF IT GOES BACK UP BEFORE HITTING THE FLOOR YOU NEED TO ADJUST THE SENSITIVITY OR THE SAFETY EYES.

TRY THE DOOR MANUALLY AND MAKE SURE IT WORKS SMOOTHLY.

Sep 30, 2008 | Sears Craftsman LiftMaster Chamberlain...

3 Answers

Garage door won't close


your door travel screw is set to go too far on the downward travel. you need to set the down travel. It is set to go too far down. find the screw adjustment on the unit that says close and back off the screw a full turn until door stops short of floor. then start turning screw other way until door just touvhes floor.

Feb 24, 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

298 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sears Building Materials Experts

Mike

Level 3 Expert

4332 Answers

Cindy Wells

Level 3 Expert

4809 Answers

Brad Brown

Level 3 Expert

13819 Answers

Are you a Sears Building Material Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...