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

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2 door on 1 code

I have 2 lift master garage door openers and 1 keypad - they used to have different codes now they both are working on the same code - how do i reprogram them so they have different codes

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  • marty metzger May 11, 2010

    working on same code means what? Same 4 digit code on keypad or same remote pushbutton?

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Press and immediately release the smart/learn button on one of your openers. Walk over to your keypad and key in another code and press enter.

Posted on Dec 29, 2009

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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).

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If your garage door is up, and you break the beam (by walking through it, for example), you will get the "SENSOR WIRING INTERMITTENT CONNECTION ERROR CODE 1-4 SEE USER MANUAL". This is normal. Both of my Liftmaster 8550 openers do this. It's misleading, but this is what I've found to cause this error.

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I have a lift Master Security +, 1/2HP garage door opener. Will the Craftsman 53684 Wireless entry keypad work with it?


Without a model number no one can tell.

Try this:

Locate the smart/learn button on the rear of the motor unit near where all those white wires go. Press and immediately release this and then walk over to the keypad and key in any 4 digit code you like and press enter.

Jan 07, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Purchased a house in short sale with a lift master 1/2 hp model #1155-4 date 11/92. We got a new car remote, it works fine, but don't know how to program the wireless keypad. It is not hard wired and has...


Sorry that keypad is no used to u.If u don't know the secret codes.Just push in the codes it will work.No enter button,mean u just don't push enter after u push in the codes.

Nov 27, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Lift master professional line 1/2 h.p. I'm trying to change the code on the key pad. How do I do that?


Locate the smart/learn button just to the left of where all those white wires go. Press and immediately release it and then walk over to your keypad and key in any 4 digit code you like and press enter.

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

1 Answer

Keypad garage door opener will not operate


what keypad are you using with new opener? Frequency has changed. can't use old one. you probably never needed to change things; just needed to follow proper coding procedures.

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