Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+
Locate the "Smart" button on the logic board. It is located on the end of the GDO with the wiring.
Press it and hold it for 10 seconds. The LED will light, then go out. This cleared the memory.
Now press and release the "Smart" button, press the remote button. the light should flash off and on.
Now follow the procedure again for the second remote. test both remotes. They should now be working. If you have a keyless entry, you will have to perform this procedure one more time for it.
Posted on Dec 30, 2010
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Posted on Jan 02, 2017
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