Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+
If it is flashing randomly that is normal. If it is flashing rapidly you have an outside interference maybe a remote with the switch stuck on. If it is a solid light you have a bad logic board.
Posted on Feb 01, 2010
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Posted on Jan 02, 2017
Tips for a great answer:
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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
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