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

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Red light/stuck GDO Sears 139.53600

I have a an old Sears 139.53600 GDO. The wall mounted opener (it's hard wired to the unit) shows a red light and neither the wall mount nor the remote will open the door. Its as if the door is locked. Thanks in advance!

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  • jessica_powe Jan 28, 2009

    Door lifts manually. Everything else looks fine accept the red light and the fact that the door won't open with the remote of the wall mounted button

  • jessica_powe Jan 28, 2009

    vheuser1 ,

    No sound. Nothing happens when button is pushed. Its as if the door is locked and a signal isn't getting to the system. Could I have locked the door? Is that what the red light means?

  • jessica_powe Jan 28, 2009

    The wall controller is just one big button. The system is very old (the kind with dip switches in the remote). I don't want to go to the expense of buying another one because we're moving out soon. I just want to leave everything in working order...

  • Vince Heuser May 11, 2010

    Does the opener sound like it is working when you push the button but nothing moves?

  • Anonymous Mar 19, 2014

    DOOR NOT GOING UP OR DOWN. LIGHTS COME ON BUT NO MOVEMENT.

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  • 244 Answers

Is it locked. does door lift manually. are springs/cables ok?

Posted on Jan 28, 2009

  • marty metzger Jan 28, 2009

    how old is gdo. what does wall control look like. is it brown with two black buttons. does it have a lock or security slide switch?

  • marty metzger Jan 28, 2009

    try taking wall control down and touching the two wires together. what happens? If it works this way, does remote control work. If so , replace wall control with pushbutton. PS=If unit is OLD and you are selling house, you may be asked to replace gdo because of lack of saftey beams. did unit reverse upon hitting obstruction. If not, you will NEED to replace.

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Chamberlain Liftmaster GDO just clicks, no lights no open/close


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