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

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Garage Door opens by itself

I am having a problem with the craftsman garage door opening by itself, without pressing the wired, or the remote opener. I can close it without a problem, and it will stay down, but later when I go out to the garage, the door is open again. I tried to change the code on the opener itself, thinking a nieghbor may have got in on my code, but I don't think this model has one that is changeable. I purchased a universal remote because we broke the old one, and while I was at it I adjusted the tension on the downward motion of the door because it wasn't coming back up if something got in the way. I since adjusted the tension back, thinking that may have been the problem for the door opening by itself,... but it is still doing it. If you may have a solution for this problem, I could use some expertise on the matter.
Thank you,

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  • smf115 Aug 29, 2008

    We were having trouble with our keypad not opening the garage door. My husband reprogrammed it and it, as well as our remotes are working fine now. However, since then, the garage door will open when no one here is pressing any buttons. I don't know if someone close to us is on the same frequency now (we haven't had problems before) or what is happening. Can we somehow reprogram the opener to a different frequency or what should we do?

  • jlresco Oct 28, 2008

    I have a Sears garage opener and I also replaced the keypad outside the garage door. I tried resetting the code, changed the code but with no success.

  • Anonymous Jan 28, 2009

    My daughter and I purchased Sears garage door openers about 4 years ago. We bought different Craftsman models. She lives 5 miles from my house. We both have been experiencing phantom garage door openings. I was working in my garage last week and the door just opened on its own. I walked outside and there was no one around. We are now afriad to leave the door engaged overnight or when we are out of town. I have reprogrammed the remotes as well as the dorr opener to no avail. Please Help!



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Your garage door springs may be out of balance. Try this test: Remove power from the opener motor. Pull the red release rope so that the door is detached from the openers drive. Lift open the door by hand- it should open all the way freely. Next, pull the door back down, stopping it about chest-high. It should remain where you stopped it. IIf the door is difficult to move, or does not stay half open, the springs need replacement or adjustment.

Posted on Aug 09, 2008


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1 Answer

Sometimes the door opens randomly by itself. I haven't pressed any remote to make this happen. How can I prevent this from occurring?

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