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

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My garage door opener, safety sensors are not lighting up, also when i try and operate door with wall mounted switch it doesnt work. why??

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My liftmaster formula1 opens everytime but only the wall button will close it. Once in a while a remote will work but rarely. I have one remote, one vehicle oem remote and a wall mounted remote outsid


does it attempt to close. stop go back up and the lights flash....if so check the safety eyes, check for boken spring/ springs using the wall mount button circumvents the safety system. check the down pressure setting.

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thanks w/d for getting right on my problem,my closer doesnt have lights at the bottom, it's a garage sale deal. works good otherwise exept I have to hold closer button on the wall to close.

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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...


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

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What does a normal remote do with the lights?
Is yellow and green normal?

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This may actually be a safety sensor problem. There should be an led light on each sensor and each should be on. Try to align them to look at one another so the infra red beam shoots between them. If both lights are off then you will need to replace the sensors or the logic board. You can test the sensors with a 9v battery. You can get replacement parts at searspartsdirect.com. Thanks BB

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2 flashes indicate safety eye issue. Check you wiring and make sure it is wired correctly and check to make sure the eyes are properly aligned.

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The sensor eye - or more likely, the other end, the sensor light - probably got knocked out of alignment. The eye should have an LED on it - possibly one that glows green when it's ready to close or red when it's obstructed or out of alignment. Try adjusting the light until the LED on the receiver glows green.

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stop adjusting. you are doing right thing. unit will not run down w/o eyes so removing wiring did nothing. you gave clue when yu said they were folloded. buy new set of eyes.

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