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

1 Answer

Loud, grinding noise from garage door opener

Began with opening ending with a loud "pop", then door would go limp, until i pushed button on remote and track would return to arm and finish the closing. Then in my return, I would push the open button, the door would lift, almost completely, then "pop" and go limp. Now the control track only makes a loud grinding noise.

Posted by angie blankemeyer on

  • Hannah Schroeder
    Hannah Schroeder Nov 17, 2017

    It's weird that your door would make a popping sound and then go limp before making a grinding noise. Mine is making a loud screeching sound whenever it opens and closes, and it gets louder when it's colder. Our problems probably aren't related, but we might both benefit from having garage door repairs done. http://www.iansgaragedoor.com.au/door-re...

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1 Answer

Don Maggard

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  • Master
  • 3,197 Answers

Remove the cover from the motor housing and check the drive gear.

Posted on Jul 09, 2012

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5 Related Answers

Don Maggard

  • 3197 Answers

SOURCE: Craftsman Model 139.53684 Security+ Keyless Entry

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

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Vince Heuser

  • 118 Answers

SOURCE: I have a chamberlin garage door opener that opens only a little

You probably have a broken spring on the door.

Posted on Jan 26, 2009

Anonymous

  • 410 Answers

SOURCE: Genie Directlift garage door opener, wall control problem.

Sounds like a skinned wire on your front or rear limit switches is touching metal. Go over your low voltage wiring and test again.

Posted on Jul 05, 2009

Don Maggard

  • 3197 Answers

SOURCE: garage door wont work with remote

If the small light in your wall control is blinking it is in the lock mode. Press and hold for 3 seconds the button with the icon of a lock. This will toggle the lock function off.

Posted on Aug 04, 2009

Don Maggard

  • 3197 Answers

SOURCE: Hi, I have a Lynx 455

Check the sensors in the doorway. Sounds like they may be misaligned. They need to be pointing at one another to work properly.

Posted on Sep 28, 2010

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