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

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It is sears/craftsman K1026 139.53779 HBW 0709 . Button on the wall inside the garage will open, but does not close . it starts vibrating and the motor light flickering and no advancing. Only if you hold the button till the door touches the ground. Remote control inside the car does the same but it does not close even if you hold it . one of the green sensor lights was flickering it became stable. no obstruction at all . How do I treat this , please Ray

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If the main light is flashing 10 times when you try to close the door it is a door sensor problem. Make sure the small light on each one is lit, not flickering and that one is not dimmer than the other. Tweak them a bit if necessary.

Posted on Oct 04, 2010

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