Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+
Garage door works but the light does not come on and it's not the bulb. Is there a switch that I can check.
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.
Posted on Oct 30, 2008
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.
Posted on Oct 30, 2008
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Posted on Jan 02, 2017
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
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
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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