Cub Cadet False Obstacle Detection

Robot mower frequently stops with message about obstacle, but nothing is in front of it (no code shown)

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Possible Causes

Over‑sensitive ultrasonic sensors, Sunlight interference, Loose bumper, Reflective surfaces in path

How to Fix / Troubleshooting

Safety first: Stop the mower and turn OFF power before cleaning sensors.

  • Clean sensors and bumper: Wipe ultrasonic sensors and ensure the bumper moves freely.
  • Adjust working area: Remove or cover highly reflective objects (metal plates, glass) in the mowing path.
  • Change mowing time: Schedule mowing for times with less direct low‑angle sunlight if sensors are affected.
  • Check sensor mounts: Tighten any loose sensor brackets inside the housing.
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Repair Difficulty

Easy 2/5

Required Part

Ultrasonic Obstacle Sensor Module
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