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

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Craftsman GDO - Remotes not working

I'm trying to reset my remotes on my Craftsman 1/2 HP garage door opener. I first reset the remote from the SRT button on the GDO. I'm following the directions...hold button on remote, then push light button on console, then push open button on console. The light on the GDO flashes as the instructions say it will, but then the lock button flashes on the console and the remote still doesn't work. Any time I push the remote button the lock light flashes on the console. Any ideas??

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I think this is an easier way to program. Press and hold the button on the remote and then press and immediately release the smart/learn button on the rear of the motor unit. Do this for each remote you have.

Posted on Jul 28, 2009

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Posted on Jan 02, 2017

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When I moved into my house, I didn't get the 4 digit code for my garage door opener from the previous owner. Is there anyway to reset the access code?


Get all the remotes together. At the end of the GDO where the wires are connected you will find a "Smart" button. Press and hold the button for 10 seconds. the led should lite then go out. This clears all the codes.
Press and release the smart button. Then press the button on the 1st remote. The light(s) on the GDO will flash on and off. This remote should now work.
Perform the procedure again for each of the remotes to enter the codes to memory.
Perform the same procedure for the keyless entry remote, press the buttons slowly to be sure not to miss any of the 4 numbers (and enter)...
That should solve your problem.
Good luck.

Jan 26, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman Model 139.53684 Keyless entry doesn't work


The remotes and keypad use the receiver which is part of the logic board.'t The button on the wall is hardwired and doesn't use the receiver. You might pull the logic board and check for bad connections on the printed circuit.

Nov 06, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Remotes quit working on Craftsman 53975 garage


It sounds like you have a logic board problem. If your remotes work at all it is not a programming problem. You could pull the logic board and check for loose connections especially around the small transformer. 18 years for an opener is very lucky. Their average life is about 1/2 that.

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

1 Answer

Can't reset remote keypad


Press and immediately release the SRT button and then walk over to your keypad and key in any 4 digit code you like and press enter.

Aug 25, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman GDO 1/2 HP - Remotes not working after storm


sounds like it blew the reciever crystal buy another and return the motor thats fried 4 refund

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

1 Answer

Only 1 remote will work at a time


One of your remotes has reverted to an earlier technology and they will no longer work with each other. You need to purchase a new remote making sure you get the same model number. Then you will find you can program 2 that will work with each other and 1 that will not. Remove the battery from the bad remote and toss it so that it doesn't cause problems down the road.

Jul 18, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Cant get 2 remotes for garage door openers working at same time


You have a remote that has reverted to an earlier technology. The only way out of this is to purchase the same exact model number called for by your opener and go through the programming. You will find the new one will work with one of the old ones. Remove the battery from the one that isn't and drop it in the garbage.

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

1 Answer

Remote and Keypads open neighbors door


Hold down learn button for 8 seconds. This clears the memory for all remotes. Then reprogam your remotes

Oct 31, 2007 | Sears Craftsman LiftMaster Chamberlain...

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