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

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TRouble getting the door to close without banging into the overhead motor. Is there a manual available to help?

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  • Don Maggard May 11, 2010

    Make and model would help.

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  • Master
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I would remove the logic board and look for loose connections on the printed circuit.

Posted on Nov 16, 2009

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2 Answers

Door won't close


Your not clear what is going on but my door would not close because the sensor near the bottom of the door as not lined up with the other side. they both have to be in line with each other and also if there is dirt even a leaf over the sensor on either side it won't work either. Is your sensor wire on the over head box out in the open where it should be? If its not opener problem I don't know as you are not clear.

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It sounds like there are 2 motors involved, one that latches and unlatches the door, and a second that moves it out of the way or brings it back.

The one is working, the other is not.

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You may have already checked this but there is a switch located close to the overhead button that will disengage the door buttons for child safety, is that turned off?

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When you upen it manually does it feel lik ther is any binding once you get past the halfway mark? It almost sounds like it is binding up where the motor is at the half way point and once the door is fully opened the motor cannot close the door because there is too much resistance. One other issue could be the motor is starting to wear out and is having trouble opening and closing the door. If you found this solution helpful please rate it.

Thanks - Tech101

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