Lefant Navigation / Mapping Failure

Robot vacuum moves erratically, misses large areas, or repeatedly cleans the same spot without mapping properly.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Dirty cliff and wall sensors, Gyroscope drift, LIDAR or optical sensor partially blocked (on mapping models), Firmware navigation bug

How to Fix / Troubleshooting

Safety: Turn OFF the robot before cleaning sensors.

  • Step 1 – Clean all sensors: Wipe cliff sensors, wall sensors, and any top-mounted LIDAR or camera windows with a soft, dry cloth.
  • Step 2 – Remove obstacles: Clear reflective objects, mirrors at floor level, and loose cables from the cleaning area.
  • Step 3 – Reset map: In the Lefant app, delete the existing map and allow the robot to create a new map from scratch.
  • Step 4 – Firmware update: Check for and install any navigation-related firmware updates.
  • If behavior persists: The navigation sensors (IMU, LIDAR, or camera) or mainboard may be faulty and require professional diagnosis.
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Repair Difficulty

Medium 3/5

Required Part

Navigation Sensor Suite (IMU/LIDAR/Camera)
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