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Garage Door Opener Closes, Then Opens

Posted by kamon (My Page) on
Mon, Aug 11, 08 at 13:01

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

Follow-Up Postings:

RE: Garage Door Opener Closes, Then Opens

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.

RE: Garage Door Opener Closes, Then Opens

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.

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