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

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Door lifted up but will not go back down and the remote quit working.

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If your door is in the open position the trolley is probably jammed against a bolt just in front of the motor unit. Remove that bolt and then run the opener until the door is closed. Now on the side of the motor unit you will find a control labeled 'up limit'. Turn this about 3 turns in the opposite direction of the arrow printed on the cover. Be sure to replace the bolt.

Posted on Jun 23, 2009


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