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

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Light does not come on when I open/close door, not the bulb

Garage door works but the light does not come on and it's not the bulb. Is there a switch that I can check.

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  • michael52 Oct 26, 2008

    Garage Door goes up and down but no lights. When I manually push the switch you can hear the relay engage but the "NEW" lightbulbs do no work.

  • deckdawg Oct 29, 2008

    I have the same problem. It worked for a while, now is not working at all.It's not the bulb. When it 1st started I would go and tighten the bulb, now it is not working at all.

  • Anonymous Jan 31, 2009

    One bulb works, the other doesn't. They both used to work. Changed both. Same problem...?

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Good Morning:

I also substituted Floescent Bulbs for the standard bulbs. The bulbs would not light up although the relay was working. It seemed that the Florescent bulbs had a somewhat shorter neck. What I did was unplug the drive system from the outlet and then bend the metal connector in the socket so that it would come out further towards the opening of the socket. I then repluged the drive. The Floercent bulbs now have contact and are working perfectly. Simple problem with a simple solution.

Sandman

Posted on Oct 30, 2008

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Unplug the opener and take a small screwdriver and pry the middle contact up a little. Should fix it for you.

Posted on Jun 09, 2009

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Look inside the lampholders and make sure the contacts/tabs are pulled up enough to contact with the bulb base in the two locations....

Posted on Apr 14, 2012

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I found the problem with mine is the socket is burn away it needs a new socket. I am looking right now for one I don't think they sell them so I just may put up a simple light socket on the ceiling and connect it to the opener and forget it. I hope this helps

Posted on Jun 09, 2009

I had exactly same problem, I found "my" solution. I was replacing normal light bulb (40W) with a florescent light bulb. The base of florescent light bulb has different shape. Although it was plugged in it was not fitting well and I suspected it did not make a good contact. So used normal 40W light bulb and that did it. Hope this helps you and others.

Deva

Posted on Oct 30, 2008

  • Sam2421 Feb 20, 2011

    I did the same. And it worked after I replaced with a normal 60W bulb. I was first trying with the florescent bulb and it didn't work. Infact the indicator light was blinking thrice.
    Now the indicator is not blinking after I put in the normal bulb. I guess the issue is with the contact of the bulb holder.

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SOURCE: Craftsman Model 139.53684 Security+ Keyless Entry

To answer your question the opener is in vacation mode. Press and hold for 3 seconds the button on your wall control with the lock icon. The green light will stop flashing and you will be back in business.

Posted on Dec 08, 2009

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SOURCE: My garage door opener won't close the garage door.

Most likely your door sensors have been bumped and are not aligned properly. Make sure they are pointed at one another and the small light on each one is lit and not blinking.

Posted on Apr 30, 2009

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SOURCE: I have a Craftsman 139.18856 Garage Door Opener.

There are a couple different light features depending on the model opener. There is one where you can change the duration the light stays on and another model has a motion detector that turns the light on. Another has a feature where if you walk in through an open garage door it automatically turns the light on. Your model number is recognized by Sears so I can't really tell what you have. Double check the model number.

Posted on Apr 05, 2010

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Posted on Jan 02, 2017

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