On my Craftsman MOTOR opener on the side of the case underneath the light cover are two circular openings. Each opening is labeled with a curved arrow denoting whether it is the open adjustment or the closed adjustment. You would want the open adjustment. You insert a screwdriver into the hole and turn it to limit how far the door will open. The adjustment is for travel it is not for if the opener senses it hits something, at least on my opener.
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