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

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I have a craftsman garage door opener and I have to hold the button down in order to close the door. The door opens fine and the sensors are clear. The unit starts to close then stops, the lights start blinking.

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When you can close the door by holding down the wall button it IS the safety eyes or wiring.

If the eyes are mounted to the track. Many times the track wll move as the door closes causing the eyes to move out of alignment.
Watch as the door moves down and see if they need to be adjusted.

If the eyes are not both lit - they are out of alignemnt or have a wiring problem. try adjusting them and see if the lights come on. - if not check the wiring

Hope this helps

Posted on Jul 12, 2010

  • STEVE WOLFINBARGER
    STEVE WOLFINBARGER Jul 14, 2010

    Yellow gteen or red the only thing that matters is if they are lit.



    For the reversing off the floor - adjust the down travel.



    For the reversing at the top - see the above info.



    Hope this helps

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When the sensors get old, the sun may interfere.they sell replacement sensors at the big home improvement stores. Get the chamberlain brand. Also you can try to switch them around, which helps sometimes.

Posted on Nov 08, 2014

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I have a liftmaster garage door opener & I have to hold the wall switch to
close the door, remotes not working at times, sensor lights seems working, did not check alignment of sensors yet, one sensor is yellow, the other is green, is this normal, seems it's been like this for a long time, someday door will go down to the bottom, then it will go back up
on it's own, please help, thank you!

Posted on Jul 14, 2010

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Posted on Jan 02, 2017

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1 Answer

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10 flashes mean sensors are obstructed... something is in the way of the door or they are not facing each other. Clear the obstruction or realign the door and it will work.

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I have a Sears craftsman model 139.53637SRT garage door opener. My remote has not worked in a long time. I use the wall control button and have to hold the button in order to open or close the garage door....


It sounds like your door sensors may be bad or misaligned. Make sure the small light on each sensor is lit and not flickering. That could be the cause of your having to hold the wall button down until the door is closed. You can buy a universal remote but if you only had one remote before it could be the receiver that has quit. A new remote would not fix that but the only way to find out is to try.

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Can open my garage door with the remote just fine, but it will not close the door. When I try to close it from the button inside the garage I have to hold it down until the door is all the way closed,...


Check your door sensors. Make sure they are pointed at one another and the small light on each one is lit and not flickering ever so slightly. Tweak them a little. If you cannot get both lights to come on you have bad sensors.

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My garage door won't close unless I hold the main button down in the garage. As soon as it closes it opens up again unless I press the button quickly. I can open it up using the remote, but cannot close it...


your garage door has saftey sensors at the door
these are photo eyes
in the owners manuel that came with the opener
that has pictures in it which would help
the photo eyes need to be clear of debri and aimed at each other with no obstruction
there are leds on each sensor and when aimes properly they should be light if i remember correctly
if you can not get them to light then you may have to replace the sensors

Oct 27, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Have to hold the push button inside my garage to close garage.


You have a door sensor problem. Make sure the sensors are pointed at one another and the small light on each one is lit and not blinking. Also check the wiring.

Jul 19, 2009 | Sears Craftsman LiftMaster Chamberlain...

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Garage door won't close with remotes


Yeh, read manual. Do both sensors have led lit. try aligning. you have safety beam problem,

Jan 14, 2009 | Sears Craftsman LiftMaster Chamberlain...

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Sensor lights not working on door opener


If the sensor light or receiver gets kicked, it can be knocked out of alignment. If it's not aligned, it will act as though it is blocked -- in other words it will open, but not close.
I fixed my buddy's opener not long ago -- you should have two parts of the sensor, near the floor at the bottom of the door. One is an infrared light, the other is a receiver. The receiver should have a little LED on it. This glows green when it is receiving a clear signal from the other side. If your's is glowing red when you can see that the path is clear, try adjusting the aim of the infrared light. You should be able to gently move the light from side to side until you see the LED on the receiver glow green.

Dec 05, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Sears/chaimberlin opener does not operate


IF YOU HOLD DOWN THE WALL BUTTON IT OVERRIDES THE SENSORS.
IF IT WORKS WHEN HOLDING DOWN THE BUTTON - THE PROBLEM IS IN THE EYES SOMEWHERE.

HOPE THIS HELPS

Aug 24, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Sears craftsman garage door opener


HOLDING DOWN THE WALL BUTTON OVERRIDES THE SAFETY EYES.
WHEN HOLDING IT DOWN MAKES THE DOOR CLOSE PROPERLY THE PROBLEM IS IN THE SAFETY EYES.

ARE BOTH LEDS ON? - CHECK FOR A LOOSE OR BROKEN WIRE.
ARE THE EYES WIRED CORRECTLY?
ARE THEY AIMED AT EACH OTHER?

Jul 13, 2008 | Sears Craftsman LiftMaster Chamberlain...

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