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

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Code just stopped working, tried to change the battery on my liftmaster 376lm Keypad and now when I enter the correct code it just flashes and the door will not open. How do i get this to start working again

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What just flashes. keypad, light bulb, wall console. try recoding keypad by using learn button.

Posted on Jan 15, 2009

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2 Answers

I need a remote keypad for 41a5021-1e lift master. What model will work for this unit


check the liftmaster web-site. also any garage door sites may have parts offerings. google the part number as well.

Nov 05, 2014 | liftmaster Lift Master 377LM 376LM 315 MHz...

1 Answer

How to change code on the garage door opener and the remote control on a lift master garage door opener


If you have a 315MHZ LiftMaster Garage door opener do the following:
Follow the purple wire (Antenna) up and you will see a square purple button.
Press and hold the square purple button for ten seconds until the amber led goes out.
Press and release the purple button one time (The amber led will come on solid).
Press and hold the button on the garage door opener remote control for two seconds (The light bulb on the garage door opener will blink and you will hear a click sound the amber led will go off).
to program the wireless keypad do the following:
Press and release the purple button one time (The amber led will come on solid).
Enter a four digit code into the keypad then press and hold the enter button for two seconds (The light bulb on the garage door opener will blink and you will hear a click sound the amber led will go off).

Aug 08, 2014 | liftmaster Lift Master 377LM 376LM 315 MHz...

1 Answer

We just moved in our house in January and our keypad on our 1/2HP Liftmaster stopped working. I have changed the battery and when I try the code the backlight blinks several times but the door never opens....


Try programming the keypad by doing this:

Press and immediately release the smart/learn button and then walk over to your keypad and key in any 4 digit code you like and press enter. If this doesn't work you keypad has quit.

Aug 18, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Remote works randomly,changed batteries now the


Keypad flashing is normal. Sounds like you may have a bad logic board. Try programming everything.

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

2 Answers

I programmed 2 new remotes with no issue but, cannot get the remote keypad to reprogram (we just bought the home and don't know the existing code) the model for the garage door opener is Chamberlain...


Your keypad may be bad. If you press and immediately release the smart/learn button and then key in your 4 digit code and press enter the keypad should be working. Be sure you have a good battery. Actually the flashing of the keypad is indicating that it is sending the signal to the receiver. Holding the enter button in doesn't do anything extra.

Nov 30, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Can enter code on keypad to lower garage door, however keypad just "flashes" when code is entered to raise door


If your other remotes are working normally I would suspect first of all a weak battery in the keypad. Secondly the keypad could be getting weak and the closed door blocks enough of the signal to cause your problem. An open door lets the signal through. Normally during the time the keypad is flashing you can hit 'enter' again to reverse the door if it is closing or stop the door if it is opening.

Oct 15, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

I have a non-functioning keypad for my Liftmaster garage door. It's 8 years old. In the past changing the battery has remedied the problem. This time I changed the battery twice with no success. The light...


First of all, did you try recoding unit by hitting LEARN BUTTON on motor. Try that. If n/g, try a new code with a number you did not use. Example, if old code was 5834, try 2222. If it works, one of the numer from you old code is worn out. Try new code or buy new pad.

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

1 Answer

Liftmaster 376lm Keypad wont work


Reprogram keypad. Press learn button on back of opener, then press in 4-digit code and press and hold enter on keypad. Light on opener will blink.

Dec 14, 2008 | Sears Craftsman LiftMaster Chamberlain...

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