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

1 Answer

Door opens on it own and light blinks

We have a Stanley Model 3200 garage door opener.
Recently the garage door began to open on its own,
Everytime it happens we have noticed that the light blinks as well.
The light continues to blink and the door will remain open until we close it by either using the remote or the wall button.
What's the fix?

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  • marty metzger May 11, 2010

    blinking light tells you door reversed when going down. was door down first and then you found it open or did you push button to close door and walk away. need more info

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  • 227 Answers

  • Stuck remote control button. Check all remotes. check LED on receiver.
  • Staples around Multi-Function Control Panel bell wire could be cutting into that wire. Remove wires from opener and test. Replace staples causing intermittent short.
  • Multi-Function Control Panel could have sticking door control push bar. Remove wires from control panel and test. Replace control panel if defective.

Posted on Feb 21, 2009

  • Mike Schmidt
    Mike Schmidt Feb 21, 2009


    • Stuck remote control button. Check all remotes. check LED on receiver.
    • Staples around Multi-Function Control Panel bell wire could be cutting into that wire. Remove wires from opener and test. Replace staples causing intermittent short.
    • Multi-Function Control Panel could have sticking door control push bar. Remove wires from control panel and test. Replace control panel if defective.

  • Bactogen Sep 13, 2012

    My Stanley 3200 responds erratically to the manual opener or the remote openers. First, I thought it was the stuck manual button but its not . It responds same way to remotes as well, and then when it responds it coses or opens only half way and the light starts blinking and then, after a pause of few seconds, it tries to reverse by it self. I disconnected the door and there is no obstruction, springs are good and the door can be closed or opened freely.Please help!

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