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

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G-door goes up and down maybe 4or5 times and then it will go down halfway and go back up. if i unplug and plug back up it will work another 4or 5 times

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If the main light flashes 10 times when it goes part way down and then reverses you have a door sensor problem. Sometimes when they are just a little bit off they will be intermittent like yours. Tweak them just a bit and try it.

Posted on Jan 30, 2010

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Posted on Jan 02, 2017

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