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

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Liftmaster 971LM opens but won't close correctly

Liftmaster 971LM... motion sensor lights are not lit up at all, can open with car remote or wall mount button but will not close with car remote, only closes with wall mount button if you hold it the entire time until the door closes. Any help?

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Check the wiring going to the sensors to make sure it is not broken or disconnected. You have a problem with the sensors themselves or the logic board. Unfortunately the only way to be sure is to replace.

Posted on Jul 14, 2009

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