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

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Bought a new remote yesterday, programmed and still the same problem. Backed out this morning and the remote would not shut the door. Came home and it opened the door, no problem. Did notice the indicater light was flashing 4 times, but not doing it now.

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If you are referring to the LED on the back of the motor unit flashing 4 times, that is the code for door sensors misaligned. Check to make sure the small light on each sensor is lit and not flickering ever so slightly. The flickering is sometimes very hard to see but it will cause the problem you are describing.

Posted on Oct 05, 2009

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Posted on Jan 02, 2017

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