Question about Chamberlain Powerdrive PD422D 1/2 HP Security Plus Screw Drive Garage Door Opener

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My garage door opener doesnt close all the way.

I hit the wall switch and the remote and I get the same result, the door goes down about 3 feet, stops, then reserves itself. The lights on the opener do not blink, it just stops. My garage door opener is a chamberlain liftmaster professional formula 1 opener.

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The motor is probably either stalling because the door is too stiff, or you have a beam break detector that is being triggered when the door is halfway down.

Posted on Nov 23, 2008

  • John B
    John B May 11, 2014

    What would trigger the beam break detector with the door halfway down?

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