Home Improvement Questions? Ask a Handyman for Answers
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Check that nothing is obstructing the gate, by opening it manually, noting how much resistance there is at several inches open and whether that is greater than the rest of the gate's swing or track.
If the opener has a graduated dial marked 'Strength' or 'Force', adjust it upward one or two points, and try again.
If the gate has a resistance sensor, it may be over-sensitive, and mistakenly reporting an obstruction in the gate that does not exist (though it is best to check first as to whether the least obstruction *might* exist, first, by doing the opening by hand, as previously recommended.)
That sounds as if the gate opener motor is getting weaker, and needs its 'Strength' or 'Force' adjusted a little higher. Look on the opener motor module for such an adjustment.
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