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

6 Answers

I have a Craftman Garage Door Opener Mod#139.53650SRT. It closes completely then goes back up. I replaced the sensors @ the sides of the door to no avail. I have tried to adjust the up and down on the side and rear of the motor to no avail. W could it be?

Posted by on

  • 5 more comments 
  • luwaleel Oct 08, 2008

    I have a manual, have tried followed instructions to no avail. What I need is to know what is causing door to not stay closed.

  • luwaleel Oct 08, 2008

    Checked button, not sturk, working correctly!

  • luwaleel Oct 08, 2008

    The button is not stuck, the light has not worked for a year!

  • luwaleel Oct 08, 2008

    There is no keyboard and the remmote is not defective, when the door closes completely, I push the remote button and the door will stay down!

  • luwaleel Oct 08, 2008

    There is no keyboard and the remmote is not defective, when the door closes completely, I push the remote button and the door will stay down!

  • luwaleel Oct 08, 2008

    I'm an electrical tech and as such, capable of following directions. I've eleiminated the forgoing possibilities and will try the adjustment you recommend. Thanks

  • luwaleel Oct 08, 2008

    I have not yet found the solution however, I appreciate being guided through trobleshooting the thing. Thanks

×

6 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Sears Master
  • 66,126 Answers

I agree with the closing resistance may be set incorrectly, all openers have a safety feature that senses if something is keeping the door from closing, this is back force, you set the sensitivity at the back of the opener motor control, it is a little dial, reduce the setting just enough to stop the door from kicking back open when it closes, I had this very same problem with my craftsman and this adjustment fixed it.

Posted on Oct 08, 2008

  • 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
  • 2,712 Answers

Check for any obstruction that is preventing the door from closing completely first..

Posted on Oct 08, 2008

  • Swilin Sampson
    Swilin Sampson Oct 08, 2008

    Found this solution on a different site:

    Garage doors have a "resistance setting" on them so that if there is
    enough resistance on the door it will stop and return to open position.
    A newer garage door has the electric eye close to the ground so that
    any obstruction will not allow the door to close and when in motion
    will return to the open position.

    Have you checked the electric eye for spider webs, or even ice forming over the eye or receiver?

    Another problem may be that it needs to have a maintenance checkup.
    Perhaps the chain and other moving parts need grease replaced. The door
    hinges also need to be greased regularly.



    Another alternative would be to "unlock" the door and manually open and
    close it during cold weather, then "relock" it. This would be better
    than continually holding the button down and forcing the motor to run.

    Hope that helps!


  • Swilin Sampson
    Swilin Sampson Oct 08, 2008

    Since you said you replaced the sensors, have you ensured that they are correctly aligned with each other?

×

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    New Friend:

    An expert that has 1 follower.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 51 Answers

The opener may not realize that the door has closed all the way. You could have a malfunctioning transmitter or wall switch that could be stuck. Also when it opens back up does the garage door opener light blink.

Posted on Oct 08, 2008

  • 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.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 749 Answers

Please check the button on the mounted house controll and make sure it is not stuck depressed.

Posted on Oct 08, 2008

  • 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.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,124 Answers

Keyboard contact. Be sure that the keypad is not stucked, Open the remote and check it out or replace the unit.

Posted on Oct 08, 2008

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 116 Answers

Do you have the instructions manual.

Posted on Oct 08, 2008

  • 3 more comments 
  • mastermind10 Oct 08, 2008

    Depending on how old the opener is you should have a green light on one of the sensors that is on all the time. If you have a newer opener, this light will be orange. If you bumped the eye, then it is just out of alignment. Look to see if there is light flickering or fluttering or not on at all. To realign it simply loosen the screw attaching it to the bracket and move it until it is a solid green then retighten it. Sometimes the flickering or fluttering is so faint that you have to get on your hands and knees and look at the light.

  • mastermind10 Oct 08, 2008




    If the lights aren't on at all check for loose wires on the back of each photo eye. If you have the older style photoeyes ( rectangular in shape, two green lights and a bolt going all the way through them) they are natorious for having bad connections at the back. Otherwise make sure all the wires are connected at the opener head. One of the lights should be on all the time as long as the wiring is ok and the opner has power.

  • mastermind10 Oct 08, 2008




    Yes, It is real simple. Either you have three screws on the back of the opener or you have four plugins. Either way they are color coded. You should have two wires with a black tracer and a solid white wire. These are your photo eye wires. Then you should have a wire with a red tracer and a solid white wire, this will be your wall button. Hook the black wires up to black all the white wires up to white and red up to red.
    If your orange light is not on, then it is not getting power or it is bad. I would bet you got a loose connection somewhere though. Once you get the orange light back on fiddle with the sensors until the other one glows a solid green.

  • mastermind10 Oct 08, 2008

    try this simple option



    On the back of the motor unit you will find a control called the "down/close force". Adjust this just enough to get the door to close.

  • mastermind10 Oct 08, 2008

    Make sure about the sensors they are pointed at one another. Each of them has a small light that should be on when properly aligned.

×

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

Garage door will not go all the way down. I just install a new one. HELP


Check the inertia settings on the opener it's self. You might need to increase the rise force.

Jan 12, 2017 | Building Materials

1 Answer

My garage door won't close it just makes a clicking sound I have to wait 20 minutes then it will close


Try to clean off the lenses on the too sensors and make sure the're in line. My little ones try to be funny.

Jan 12, 2017 | Building Materials

1 Answer

Back door to my house wont close securely...wind blows door opens its that easy to open it -


adjust the door striker plate in the door frame so that the lock tongue goes into it

Jan 17, 2015 | Building Materials

2 Answers

Garage door spring ,how can I change the spring


Garage door springs and their repair are one of the most dangerous jobs a Person can undertake in a Home.I strongly urge you consult a Professional.There are many aspects that must be taken into consideration and lack at any of steps can lead not only damage but maybe death.I\'m cheap as Hades,have assisted repairs on a garage door-advise keep away from springs.

Jul 13, 2014 | Building Materials

1 Answer

How do i reprogram garage opener model 139.53776


To ensure that old codes do not work, first press and hold the SR code button (Learn) on the garage door opener's control panel. Hold the button until the LED goes out. The Learn button is a colored button that is usually on the back panel to the left of the force and up/down adjustment knobs. Sometimes the control panel is on the side of the unit.

Next get a helper to make the programming easier. One person will need to press and release the Learn button. Then within 30 seconds, the second person (or a fast moving individual) needs to type in a 4 digit code and press the enter key on the key pad. The LED near the learn button will flash when the code is received.

If you reset all of the codes, you'll need to repeat the fast press and release of the Learn button. Then press a control button on the remote for most of your other door opener remotes. (There may be a pair of remotes that came with the garage door opener that will never be forgotten.)

I hope this helps.

Cindy Wells
(This works for all of the Craftsman door openers that I've dealt with.)

Jul 10, 2014 | Building Materials

1 Answer

I want to set a new password for them, i was lose old password, let see the video.


Do not understand what you want ? If you have a device not working or you need information on that device. respond with a make and model

May 28, 2014 | Building Materials

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

138 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

4848 Answers

Brad Brown

Level 3 Expert

14336 Answers

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

Answer questions

Manuals & User Guides

Loading...