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

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Craftsman door opener remote with "Security+" work with old units

Is it possible to make the new version of the Craftsman 1/3HP door opener with "Security+" remotes work with the older versions(10years old) and vise-versa? It seems the 2 remotes, while the same 315MHz freq. will not talk to each other.
Thanks in advance!

Mike in Southbridge

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They will not work with each other.

Posted on Jul 22, 2009

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2 Answers

I can't get my older garage door remotes to program with the new unit.Do I have to buy new remotes?


SORRY TO SAY.THE ANSWER IS YES.
THE NEW OPENERS ARE NOT ON THE SAME FREQUENCY.

YOU CAN PURCHASE REMOTES THAT WILL WORK WITH BOTH OLD AND NEW OPENERS (DUAL FREQUENCY).
BUT, OLD REMOTES WILL NOT WORK WITH THE NEW OPENERS.

Dec 29, 2014 | Craftsman Sears Liftmaster Garage Door...

1 Answer

I just purchased Liftmaster 971LM for my 139.53975srt1 Sears 1/2hp garage door opener. It will not program. I have only one working remote that was recycled from my father's unit - it says craftsman...


If the recycled remote is Security + there is no logical reason the new units should not work. If the old remote is a different technology and there have been changes to the opener or a different receiver that could be the problem.

Aug 20, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Where to buy remote control and reset My garage door opener also


To erase the memory of the opener so that your old remote will no longer work you need to locate the smart/learn button on the rear of the motor unit. Press and hold this button for 6 seconds. No remotes will now work.

To program the new remote when you get it, hold the button down on the remote and then press and immediately release the smart/learn button.

Call any local door opener repair company from the yellow pages and you should be able to buy a remote from them.

Feb 08, 2010 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Craftsman new 315MHz Garage door remote programming with old openers


The radio frequency has been changed so the two are not compatible.

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

1 Answer

Remote to garage door opener wont work no solution on fixya


The Clicker is a hard one to program. You might try it a couple more times to be sure it won't work.
The 61LM is the Liftmaster remote that goes with that unit. There is a possiblity that the reciever on the board is bad. That board is no longer available but you can get a 635LM external reciever that is backward compatable with the 61LM remote.

Jan 09, 2009 | Sears Craftsman LiftMaster Chamberlain...

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