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

1 Answer

The garage door does not stay down.Comes back up with lights flashing fast.The sensors are clear and the pressure has been set.

Posted by on

1 Answer

  • 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

If when the door reverses the main lights flashes 10 times it is a door sensor problem. Nothing else will cause this. Make sure the light on each sensor is lit and not flickering ever so slightly. The flickering can sometimes be difficult to see.

Posted on Oct 05, 2009

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

3/4 hp Craftsman garage door going back up when closing.what shiuld i do?


If it completely closes and then goes back up and the lights are NOT flashing adjust the down limits (its going down to far). If the lights flash repeatedly then something is tripping the safety sensors. Finally if its going almost all the way down and then comes back up adjust your down force.

Oct 30, 2016 | Building Materials

1 Answer

My new installed garage door opener closes and opens right away


You have to adjust the safety pressure sensor. It is set to too light a pressure. Check your manual for the adjustment.

Mar 10, 2013 | Chamberlain 1/2-HP Whisper Drive Belt...

1 Answer

The door is going down within about two inches of the floor and then goes back up. It has been doing this occasionally for the past few weeks, but now it will not stay down. The light flashes 10 times each...


Anytime the light flashes 10 times when the door reverses to the open position it is a door sensor problem. Make sure the small light on each sensor is lit and not flickering. Tweak them a little. If you cannot get both lights to come on you have bad sensors.

Sep 16, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door goes down and few inches and comes back up


Usually this means that your sensors on either side of the door are out of alignment or there is something blocking the sensors from making a connection. I did have a problem once were the door track twisted a little when the door started coming down thus making one sensor turn away a little and not allowing both sensors to make connection. Check to ensure the sensors are communicating correctly. Usually there are two lights, one on each sensor. They usually are red until they are properly lined up then they turn green. Some manufacturers have them flash until they are lined up then they stay on steady.

May 02, 2011 | General Electric GE 13-438 Overhead Garage...

2 Answers

My older Craftsman garage door opener comes down about 6" & then goes back up. I just replaced all the rollers o& the opener worked fine. Then I tightened the chain on the opener & it worked ok...


If the main light flashes 10 times when the door goes back up it is a door sensor problem. You chain should sag just a little. If you tighten it too much it will click as it goes over the sprocket. You can increase the down force which is an adjustment near where all those white wires go. A 1/4 turn should be enough. Release the door from the opener and operate it by hand. It should move freely and when you have the door approximately waist high it should stay put. Neither raising nor closing.

Jan 11, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

My Homelink wireless remote is stuck on fast flashing red light. I can't seem to clear my remote to program any of the buttons to my garage door opener. This is the second one I purchased, I had no...


Try this.

HOMELINK PROGRAMMING




  1. Clear out anything previously programmed into the in-car system from the factory by holding down on the 2-outside buttons simultaneously, until the in-car LED starts flashing rapidly. This may take up to a minute (in most cases, the key should be on auxilary, and/or the car door must be shut).
  2. Decide which button you want to make to be your in-car garage door transmitter. Hold your transmitter up near the selected button, pressing both the garage door remote and the selected in-car transmitter button simultaneously. Hold down on the buttons until the in-car, LED light flashes rapidly. This sets the in-car remote transmitter to be your garage door openers make transmitter, but you are not done. You now need to make this in-car transmitter your personal transmitter.
3. Go to the Learn Button on your garage door opener. The button is usually next to the area where the floppy antenna is connected to the motor head. With Genie it is most often behind the light lens, and an indicator light flashes red when pressed. With Sears or Liftmaster (Chamberlain) it is near, or part of, the terminal screw board, and is a red, green or purple square button with a green, amber or purple indicator light. Press this learn button momentarily. The indicator light will turn on and blink if Genie or otherwise stay lit. For Genie systems, go back to the in-car transmitter button you programmed and press this button 3 or 4 times, or until the door starts moving. This should set your in-car transmitter to your garage door opener. For Liftmaster, Sears, or Linear Megacode press and hold the in-car button you programmed until the garage opener light flashes. Your in-car is now programmed to operate your door.



Nov 20, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Garage Door will not stay closed.


You need to check the adjustment for the travel of the door ... All automatic closers have a built in safety mechanism that prevents children, pets and even yourself from being crushed by the door ... so if the travel is set to low the door will hit the ground too hard and safety mechanism will activate opening the door again! Look at you documentation for how to adjust this for your particular model :)

Sep 29, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Garage shuts partially and then reopens and the light flashes.


MOST doors ALSO have pressure sensors that detect the force exerted on the door and shut down if excessive. Broken or weak counterbalance springs cause trips of this sensor and OFTEN one must adjust the sensitivity of them. IF there are adjustments for this, they are on the head motor area.

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

2 Answers

3.75 craftman garage door goes down a foot then immediately reverses back up


If when it does this your main light flashes 10 times it is the door sensors. Make sure they are aligned properly. If the main light doesn't flash 10 times then you most likely have a bad RPM sensor board. It is a small printed circuit board just in front of the motor.

Jun 28, 2009 | Sears Craftsman LiftMaster Chamberlain...

14 Answers

Sears craftsman 1/2 hp garage door troubleshooting


My garage door opener will start to close then stop and go back to the open position. If I put pressure on the door as it is closing sometimes it will close all the way and sometimes it will return to the open position. Can you help me. Thanks pbstation771@verizon.net

Aug 18, 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

73 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sears Building Materials Experts

Mike

Level 3 Expert

4336 Answers

Cindy Wells

Level 3 Expert

5052 Answers

Brad Brown

Level 3 Expert

15441 Answers

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

Answer questions

Manuals & User Guides

Loading...