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

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Craftsman Garage Door opener lights do not come on when you walk through the open door past the sensors.

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  • clydewigg3 Jan 17, 2009

    There's more to it than that. I've red the manual and done everything it suggested. Thank you for your suggestion.

  • clydewigg3 Jan 18, 2009

    Thanks, but the book said to push it for 4 seconds, someone online said to push it for a minute. I don't know, it hasn't seemed to work. There must be something in the relay, as it used to make a "click" noise when I walked through the beam. However, I know the beam is still working as the door wil not close if it's blocked.

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Read manual. on wall control, you can reprogram this to work

Posted on Jan 15, 2009

  • marty metzger Jan 17, 2009

    are you sure. do not know which model you have. infra-red detector on wall panel or not. there definetly is a way py pusing the light button for 10 seconds, or something like that, to accomplish what you want.

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1 Answer

Auto garage door opens will not close not the sensors


Look at the back of the motor unit and see if that little light is flashing a code. Post the code.

Aug 13, 2012 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

I cannot get the overhead light to come on when I walk past the sensors. It used to come on. The bulb is not burned out. Also the indicator light on the opener keeps flashing.


To have your lights come on automatically when you walk into an open garage, you must START with the lights ON. If you don't want that feature and you want to turn it off, you must START with the lights OFF.


To turn the feature on, turn the lights on manually with the wall switch, then press and hold the LIGHT button for about 10 seconds until the motor unit light bulbs flash. Now, if the light bulbs are on, manually turn them out and then walk out through the open door. The light bulbs should come on.


To disable this feature, start with the light bulbs OFF and everything else is the same.

Jan 25, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Light will not come on when you walk into the


To have your lights come on automatically when you walk into an open garage you must START with the lights ON. To turn the feature on, turn the lights on manually with the wall switch, then press and hold the LIGHT button for about 10 seconds until the motor unit light bulbs flash.

Now, if the light bulbs are on, manually turn them out and then walk out through the open door. The light bulbs should come on.

To disable this feature, start with the light bulbs OFF and everything else is the same.

Jun 05, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door won't open.


The most common cause of this problem is the door sensors have been bumped and misaligned. They each have a small light that should be lit and not flickering. Tweak them until they are pointed at one another and the lights are lit.

Jun 03, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door will inconsistenly not close


It is normal for that LED by the learn button to flash randomly. It can also flash a code to help with diagnosis. The codes are 1 to 6 flashes followed by a pause and then repeats. A rapid flash is a sign it is receiving a radio signal but not necessarily the correct one to operate the door. If when your door doesn't close properly the main light flashes 10 times and the door reverses to the open position it is a door sensor problem. The sensor must be pointed at one another and sometimes can be off just a hair and will cause intermittent problems. A slight tweaking of the sensors will cure this problem. The 'down force' adjustment can be set too low and cause the door not to close sometimes. This can be increased to overcome this problem. This problem will not cause the main light to flash. The other possibility is the RPM sensor. This is the printed circuit board that senses when the door runs into something. I have never seen one intermittent but that doesn't mean it's not possible. I hope this helps you.

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

1 Answer

Garage Door Opener Lights


Some craftman operator don't have that feature. Are both photo eye lights green? Feature not available. If the photo eyes are yellow and green feature should be avilable. The operator needs to have a three button wall station. With the light on the operator off press and hold the "light" button for about a minute until the light flashes.

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

2 Answers

Garage Door Opener Light does not come on when it is supposed to


Great call Marty! I had noticed the amber LED above the learn button was blinking with one pulse, which the troubleshooting guide noted as being a problem with the sensors. Finding that one tiny paragraph in the manual and following the instructions of holding the wall-control light button in for 10 seconds reprogrammed it and the functionality is returned. Thanks!

Jan 04, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Craftsman Garage Door Opener


From the manual:
Security+Light Feature: Lights will also turn on when someone walks through the open garage door. With a Premium Control Console, this feature may be turned off as follows: With the opener lights off, press and hold the light button for 10 seconds, until the light goes on and off again. To restore this feature, start with the opener lights on, then press and hold the light button for 10 seconds until the light goes off, then on again.

Sep 10, 2008 | Sears Craftsman LiftMaster Chamberlain...

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