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

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Remote cotrol activation runs only for couple

My Craftsman opener stops in couple of seconds after remote control activation and keeps repeating the same symptom.

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You need to post again with a little more detail. Does it stop on the way up? down? do the main lights flash? Does it do the same thing when you use the wall button?

Posted on May 14, 2010

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Posted on Jan 02, 2017

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Programming remote and in car garage door openers to the Craftsman AssureLink Garage Door opener - Model - 139.3043


The opener radio is not compatible with your homelink system. You need to buy a homelink repeater. Note: liftmaster and chaimberlain are the same, so if you see a reference to one of those names when searching for the repeater, dont worry, it'll work. As far as the second remote, check batteries. Then try programing again, using yellow button on the opener. Lastly, you can reset the programming and start over if all else fails. Hold down yellow button until light on button turns off. Good luck.

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I have a craftsman 1/2hp that stopped working. There is a small green light on the back of the opener that flashes five times and then stops for a second and then repeats the flashing. It may be model...


You don't say but I am going to assume the door is stuck in the open position. Loosen the chain enough to relieve the tension on the trolley. Now run the opener until the door closes. While the door is closed locate the 'up limit' control on the side of the motor unit. Turn this control 2 full turns in the opposite direction of the arrow printed on the cover. Tighten the chain.

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HAVE SEARS/CHAMBERLAIN "91"MODEL 53615SR AND NEIGHBORS OPENER KEEPS OPENING OUR GARAGE DOOR BUT OUR OPENERS WONT OPEN HIS


Look at the LED light next to the SMART/LEARN button on rear of the motor unit. You may need to remove a light lens cover in order to see it. If the light is flashing rapidly this means you have a stuck button on one of your remote controls. Take the batteries out of each remote control. When you remove the batteries from the bad remote, the light will stop flashing. This remote needs to be replaced.


If one of your neighbors remote controls is inadvertently programmed into your receiver, you door will open when their remote is activated. If this happens you will need to clear out your receiver and reprogram your remote controls. Press and hold the smart/learn button for 6 seconds or until you see the small LED light near the button turn itself off. If the above steps have been followed and the symptoms continue, there may be an electronic short in either the wall control button or the receiver logic board. In this case, remove the wall control wires from terminals 1 and 2 on the motor unit. Should the symptoms persist after the wires are removed, replace the receiver logic board. If the symptoms stop with the wall control wires removed from the motor unit, replace the wall control button, and the wires leading to the wall control button.

Dec 21, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

My garage door keeps opening on it's own during the middle of the night or during the day. What's causing this


Look at the LED light next to the SMART/LEARN button on rear of the motor unit. You may need to remove a light lens cover in order to see it. If the light is flashing rapidly this means you have a stuck button on one of your remote controls. Take the batteries out of each remote control. When you remove the batteries from the bad remote, the light will stop flashing. This remote needs to be replaced.


If one of your neighbors remote controls is inadvertently programmed into your receiver, you door will open when their remote is activated. If this happens you will need to clear out your receiver and reprogram your remote controls. Press and hold the smart/learn button for 6 seconds or until you see the small LED light near the button turn itself off. If the above steps have been followed and the symptoms continue, there may be an electronic short in either the wall control button or the receiver logic board. In this case, remove the wall control wires from terminals 1 and 2 on the motor unit. Should the symptoms persist after the wires are removed, replace the receiver logic board. If the symptoms stop with the wall control wires removed from the motor unit, replace the wall control button, and the wires leading to the wall control button.


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

1 Answer

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How does everything look well? How old is unit? Did you push learn button for 10 seconds. Then pusj for 1 second and activate a remote button. lightbulb on motor should blink. if so, hit learn again for 1 second and push button on other remote. Do you have a LOCK or VACATION button. Make sure it is off . Is light on wall console blinking. you have remotes locked out.

Jan 11, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

The remote opener reset button goes off and will not work


The green button is not a reset it is the program button.

If you hold the button down for about 20 seconds it will erase all codes. Then, press and release the button - press and hold the button on your remote for about 10 seconds. the next time you press it it should activate the door. Repeat the 2nd step for all additional remotes.

The lock button on the wall control locks out all radio signals for vacations etc.

If the lock has been activated the green led in the wall control will flash - when the lock is deactivated the led stays solid green.

Hope this helps

May 07, 2008 | Sears Craftsman LiftMaster Chamberlain...

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