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

2 Answers

Garage door wont close all the way

My garage door stops abot ten inches before it hits the floor

Posted by on

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 3,197 Answers

On the side of the motor unit you will find the 'down limit' adjustment. Turn this in the direction of the arrow printed on the cover. Some tweaking will be necessary.

Posted on Sep 25, 2009

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 5,603 Answers

The over-force limit is probably being activated. YOu may have a spot on the track that is putting load on the closer. Try MANUALLY moving the door to verify easy motion through complete range.

ALSO verify you don't have a cord that hangs down and triggers the electric eye safety devices. A pull cord can do this but usually the door is reversed when that happens.

You may also need to INCREASE the tension limit on the head if you find the tracks and counter balance springs have no problem.

Posted on Sep 25, 2009

Ad

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

Why is my garage door suddenly reversing when going down?


Deb, that reversal is a child safety device - if the bottom edge of the door detects contact with any object, it'll immediately reverse so it doesn't kill a child. Or a cat, dog, whatever.

The opener mechanism should have a stop switch that prevents the door from closing hard against the floor - that stop switch needs to be adjusted so that the door will stop JUST before hard contact. That'll take care of it "bouncing" off the floor & reversing. As to it reversing before it touches the floor... examine both guide rails closely to see if there's any obstruction that the door's bottom edge may be contacting to trigger the child protection reversal switch.

Aug 04, 2014 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Erratic garage door opener


It is an adjustment problem. Any obstruction and the door goes up again. So try adjusting again but don't leave space to invite rodents that will cause damage to car wiring. I am just going thru that.

Dec 04, 2013 | Craftsman Sears Liftmaster Garage Door...

1 Answer

Garage door will not stay down when closed


Sounds like the down limit is out of adjustment. Turn the Down limit switch opposite the direction of the arrow a quarter turn and try again. Repeat until the door stops before hitting the floor then fine tune to shut off at the floor.

Aug 14, 2011 | liftmaster Garage Door 1/2 Hp

1 Answer

Remote will open door when remote is hit to close door the light flashes and will not close. The wall unit will close door but the button must be held and released when the door hits the floor.


Make sure there is nothing tripping the IR beam at the bottom of the door. The beam is bounced back and forth between its source and a mirror about six inches off the ground. If something breaks the beam the door will go back up as a safety precaution. Also check to make sure there is nothing directly under the door that stops the doors from completely closing. Even a small rock can send the door back up.

Good luck

Dec 09, 2010 | liftmaster Chamberlain Garage Door Opener...

2 Answers

The garage door closes and then opens up again, I have to close it several times before it secures. There are no obstructions. Is this a sensitivity problem?


More than one thing can cause this type problem.

If the main light flashes 10 times when the door reverses it is a door sensor problem. Make sure they are pointed at one another and the small light on each one is not flickering ever so slightly.

If the door reverses when it hits the floor it is a sign that the door is traveling a bit to far. The adjustment for this is on the side of the motor unit. Turn the 'down limit' in the opposite direction of the arrow printed on the cover. Some tweaking will probably be necessary.

Jul 06, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door only raises about two inches then stops.


Check the door springs and also remove the cover from the motor unit and check the drive gear. The door spring could be broken or the drive gear may be stripped.

The sensors only work when the door is closing.

Jun 15, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door not closing completely


lubricate track and drive chain or screw if it resists moving too hard it thinks it hit something and will back up

Jul 09, 2009 | liftmaster Chamberlain Garage Door Opener...

1 Answer

Craftsman garage door does not open all the way stops @12 inches


You most likely have a broken door spring. Release the door from the opener and try lifting it by hand. Look above the door for the springs.

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

1 Answer

After opening, my automatic garage door creeps back down a bit


There is a sensitivity switch for both directions, open and close. If you access the garage door opener in the ceiling, you will see two adjustment screws for calibrating these. I would highly recommend following the instructions in your manual, as these are life safety adjustments! Your sensitivity for closing the door is adjusted to the positive. You just need to back it off a little. Place a 2x4 on the floor of the garage where the door comes down. and when the door hits the 2x4, it should automatically come back up. If not, you adjusted it too far. Hope this helps. and remember, check the manual for your specific adjustment procedures.

Mar 13, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Door wont close all the way


Try adjusting the down force, Turn screw an eight of an inch.

Dec 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

169 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sears Building Materials Experts

Mike

Level 3 Expert

4340 Answers

Cindy Wells

Level 3 Expert

5124 Answers

Brad Brown

Level 3 Expert

15633 Answers

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

Answer questions

Manuals & User Guides

Loading...