E14
Medion Wall / Edge Sensor Fault

Robot vacuum displays E14 and may stop near walls or furniture, sometimes failing to follow walls correctly.

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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 side IR wall sensor, Faulty side IR sensor board, Loose sensor wiring, Strong sunlight or reflective surfaces interfering

How to Fix / Troubleshooting

Safety first: Turn OFF the robot before cleaning sensors.

  • Step 1 – Clean side sensors: Locate the side-facing IR sensors (usually on the right side of the bumper or body). Wipe the windows with a soft, dry cloth.
  • Step 2 – Test away from sunlight: Run the robot in a shaded area away from direct sunlight and mirrors to see if E14 disappears.
  • Step 3 – Inspect sensor board: Remove the front/side cover to access the wall sensor board. Check that its connector is firmly attached to the mainboard.
  • Step 4 – Replace sensor board: If the sensor is cracked, water-damaged, or still misreads after cleaning, replace the Medion wall/edge IR sensor board.
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Repair Difficulty

Medium 3/5

Required Part

Wall / Edge IR Sensor Board
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