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

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I have a lift master 1/3 HP and when I turn the motor on,

It sounds as if it is working but the chain is not moving at all,,then I hit the button once again and it does the same thing...then I have to hit the button for the third time to shut it down. the chain is not responding to the motor getting turned on...can anyone help me?

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You gear is stripped out on the inside. If your feeling handle you can change it your self open up the case and you will se what I mean right away. Take the gear off and go down to sears they have a part that will work for your opener. make sure to have the opener and chain in the down postion.
liftmaster/sears/chamerlain are all made by the same company so many of there parts work together. But now all of them

Posted on Feb 11, 2009

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