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

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Door comes back up, light flashes

Door does not close comes back up, light flashes

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Check to make sure your door sensors have not been bumped out of alignment. Each has a small light that should be lit when they are properly aligned. Tweak them a bit and see if the lights are lit. If both lights won't come on you have a bad sensor.

Posted on Oct 02, 2009

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3/4 hp Craftsman garage door going back up when closing.what shiuld i do?


If it completely closes and then goes back up and the lights are NOT flashing adjust the down limits (its going down to far). If the lights flash repeatedly then something is tripping the safety sensors. Finally if its going almost all the way down and then comes back up adjust your down force.

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Garage door opener does not close with remote. It will only close when you press the garage button


If the main light flashes 10 times when the door reverses to the open position it is a door sensor problem. Make sure the small light on each sensor is lit and not flashing ever so slightly. Tweak the sensors a little. If you cannot get both lights to come on you have bad sensors. If this is not your symptom post back.

Sep 27, 2011 | Sears Craftsman LiftMaster Chamberlain...

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When I click my remote to close my garage door it just clicks and the light flashes, but it won't close. To close the door I have to hold down the button on the wall unit until it closes. If I stop holding...


Make sure the door sensors are pointed at one another and the small light on each one is lit and not flickering. Tweak them a bit. If you cannot get both lights to come on you have a bad sensor or bad wiring to them.

Nov 13, 2010 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

My garage door will not close. The door gets close to the ground, then starts back up again and when it gets to the top the lights flash.


Just got off the phone from one of the rep's of Chamberlain...Go to the sensor that is blinking(it should be the one with the green light) loosen the sensor until the light goes out, then tighten it back up until the light come back on, and push the garage door opener. it should reset the unit.

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My garage door opener from sears will not close the door from the outside. i have to go back in the house, close it with the button on the wall, then go back out. It does, however open the door when I...


If when you try to close the door with the remote it starts down and then the main light flashes 10 times and the door reverses to the open position it is a door sensor problem. Each of the sensors has a small light that should be lit and not flickering. Tweak the sensors a bit. If you cannot get both lights to come on you have bad sensors.

Sep 29, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Door won't close, with out hold down on button.


If the main light flashes 10 times when the door reverses it is a door sensor problem. Make sure they are pointed at one another and the small light on each one is lit and not blinking.

Sep 07, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Door locked light flashing when door is closed


push on the door where the lock is... it may not be fully locked.

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