Robot vacuum reports 'Error 14' / voice prompt 'Error 14: Sensor error' and stops, often soon after starting.

Safety first: Turn off the robot before cleaning sensors.

• 1. Clean front and side sensors:
  • Use a soft, dry cloth to wipe the dark plastic windows on the front and sides of the robot.
  • Clean any additional TOF or IR sensors on the top or sides (model-dependent).
• 2. Reboot and test:
  • Power cycle the robot and start a cleaning cycle in an open area.
• 3. Firmware update:
  • Use the Xiaomi Home app to check for and install firmware updates.
• 4. Advanced inspection:
  • Open the robot and check that all sensor harnesses are firmly connected to the mainboard.
  • Inspect the front sensor board for damage or corrosion.
• 5. Replacement:
  • If a specific sensor board is identified as faulty, replace that board (e.g., front IR sensor board).