Where a Pacific Pines driveway falls towards the garage, run-off reaches the bottom section, the seal and the lower part of the tracks or guides. Over time that leaves grit and corrosion exactly where the door meets the floor, and the door begins to meet resistance at the end of its travel.
An opener responds to that by working harder. It strains at the bottom of the close, or it reverses because the resistance trips its force threshold, or somebody turns the force up so it stops reversing. All three look like opener faults. All three are the opener reporting a mechanical condition it did not cause.