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

1 Answer

Liftmaster 1280 LMC Motion Detector Garage Opener Push Button Pad Not Working

The remote in the car works, the wall mount unit outside the garage works, but the motion detector push button pad does not work to close the garage door and the 2 green lights on this unit are continually flashing.

Posted by on

  • Debbie 57 Aug 06, 2008

    We purchased a new push button pad for inside the garage and everything is back in working order. The old unit was about 8 years old and there was obviously a problem with the circuit board inside this unit.

  • Zyndal
    Zyndal Jun 13, 2015

    Unit may be in lock mode,Try holding down the lock button for a few seconds...(A solid green light from flashing light should appear )also check both sensors at door for alignment and clear of any dust...Both sensor lights should show green ... Hope this helps



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 476 Answers

Have you tried to reprogram the chanel again?
Changed the battery?

Posted on Aug 02, 2008

  • Verne Koti Aug 07, 2008

    Hi there

    I am here to help.....honest.

    I never got a reply from you,

    I thought it only fair to answer the questions before rating the solution,

    The questions I have asked were to become better informed about your problem.Not to guess,

    Security is very important for ME too,

    I deal dierctly with the Suppliers in New Zealand,

    Great Company Good Products.

    If their info is incorrect then they definately need to know.

    I assume you could not reprogram that is a normal result of the faulty printed pcb board inside the unit and the only solution was the purchase of the new unit,

    Changing the battery would have shown you this unless it was a hard wired unit without a battery then the main control unit would have had fault too ,

    I thank you for your time and would like you to reconsider rating the solution thanks




1 Suggested Answer

  • 2 Answers

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

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.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

I have a liftmaster formula 1 1280R opener that works fine from the wall mount but all of a sudden both remotes and the built-in remote in my car stopped working. It is not the batteries in the remotes. ...

The motor/control unit may have gotten reset. It needs to relearn the codes transmitted by the remotes.

MIne has a "learn" button on the control unit. Press and hold, then press the button on the remote. Lights will flash indicating it has received and stored the code. Release button.

Check to see if the remote works now. If so, all three should be working. If not, dig up your manuals.

Feb 28, 2013 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Garage door only opens sometimes with remotes< and exterior keypad. always works with wall mount button.

Check the light bulbs in the opener. Newer fluorescent or LED bulbs can generate enough radio frequency interference that the normal signal levels from the remote will be inadequate.
Of course, make sure the remote batteries are fresh.

Sep 04, 2011 | liftmaster Garage Door 1/2 Hp

1 Answer

My Chamberlain Liftmaster Formula 1 garage door (2002) has stopped working. The power is on -- light turns on when I push the wall mount button. But the remotes no longer work. The door does not move. ...

The light by the learn button may be sending a diagnostic code. See if it is flashing a number of times, pausing and then repeating. Count the flashes. Is your door stuck in the open posititon?

Jun 11, 2011 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Remote control for garage door suddenly stopped working.

Press and hold for 3 seconds the button on the wall control with the lock icon. There you go.

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

1 Answer

I have 2 liftmaster 3245. The hand held remotes were working fine then stopped. I replaced the batteries and turned of all electrical/RIF close by. Still not working. Both cars operate the doors with no...

You need to reprogram the remotes by briefly pushing the learn button on the garage door opener until it flashes once, then release the button on the garage door opener.

Now press the remote button once until you hear the garage door opener click, now press the remote button once again and the remote should be programmed to work for that garage door opener.

DO NOT press and hold the garage door opener learn button for more than 10 seconds or you'll erase all programs and have to relearn all the remotes, including your car ones.

Hope you found this very helpful and best regards.

Aug 06, 2009 | liftmaster Chamberlain Garage Door Opener...

1 Answer

My keypad works,my remote opener does not, even

It is related. One of the buttons on your wall control is the lock button and has a lock icon on it. Press and hold it for 3 seconds. The blinking should stop and your remote should now work.

Aug 01, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Liftmaster Wall Control Button not working after replacing gear

Check wiring back to unit to make sure it's not shorted or broken. You can also reset the garage door opener by unplugging it for a few minutes and plugging it back in.

Apr 25, 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

623 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sears Building Materials Experts

Glenn Mayer
Glenn Mayer

Level 2 Expert

91 Answers


Level 3 Expert

4345 Answers

Cindy Wells

Level 3 Expert

5299 Answers

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

Answer questions

Manuals & User Guides