Garage Door Opener Closes, Then Opens

kamonAugust 11, 2008

I have a Craftsman 1/2 hp Garage Door Opener (41a5021) When I hit the button to close (wired or wireless) it does so, but when it hits the bottom, it immediately begins to open.

Any Ideas? Thanks

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If you have the manual, It should explain how to adjust the up and down force adjustments on the opener. I believe the down force adjustment needs tweaked.

    Bookmark   August 11, 2008 at 2:28PM
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If the door hits the floor and then reverses it is closing a little too far. On the side of the motor unit you will find the 'down limit' control. Turn this a couple turns in the direction opposite the arrow printed on the cover. You may have to tweak this control a bit to get it just right.

    Bookmark   August 11, 2008 at 2:35PM
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