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

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Power Surge - No lights on control panel


over the weekend we had a lightning strike that knocked out my Garage Door Opener. The wall panel has no lights on it. The main unit still has the green light on it, and seems to be powered (it was on a surge protector). The remotes also don't work, nor does the outside keypad.

Anyone got any ideas?


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  • birdnest1008 Jul 14, 2008

    After the storm, our remotes stopped working. the door will still open and shut using the wall button that looks like a normal doorbell. If reprogramming the remotes is the solution, i do not know how to do that. there are three buttons on the remote, one large, one med, and one small.



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Was the surge protector one made special for door openers? (it would have lots of connections for safety eyes etc. not just a plug in?

If not you probably have blown safety eyes or circuit board.

Hope this is helpfull.

Posted on Oct 05, 2010

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U might need to change Lightning/Power Surge Suppressor the comes inside of ur motor connected between the black and white cables of the power input of ur motor

Posted on Mar 15, 2009

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Thats one of the symptoms of a lightning strike or a power surge. Without actually being there I would suggest replacing the back-board. But as with lightning strikes and power surges sometimes other electronic components could have been damaged as well.

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The surge probably knocked out one (or more) of the safety sensors.
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Make sure the system is isolated before atempting this, and ensure a safe working practice is followed.
It's not worth losing fingers over!

Once the fault is found, do not use untill a replacement is fitted.

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