If the garage door hits the floor and reverses to open again, check
the close limit switch and adjust accordingly. When it reverses before
even hitting the floor, a possible cause is another adjustment feature
on the opener unit called the “close force adjustment.”
As your garage door gets older, the springs wear out. The result is
irregular opening and closing. The solution is to increase the force
setting on your opener.
Climb a stepladder to reach the garage door opener and look for the
knobs on the rear of the unit. Turn the desired control clockwise
slightly to adjust and retest the door. Continue turning, one at a time
and in small increments, until the door opens and closes properly and
stays in position.
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