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

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Can only open door manually.

My garage door will not open by the wall mount nor the remote. The light come on but the door will not open. One sensor is green and the other is red. Does this have something to do with it not opening? The door is just now 4 years old.

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The door sensors have nothing to do with the door opening. Does it make a sound? Take off the cover and look at the drive gear. It is white nylon just in front of the motor. May be stripped. Also check your door springs. One may be broken.

Posted on Jun 23, 2009

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