E18
Hoover
Front Obstacle / Wall Sensor Contamination
Robot vacuum shows E18 and reports 'sensor dirty' or 'front sensor blocked'.
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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
Dust on front IR sensors, Smudged front camera lens (on camera‑based models), Sticker or tape covering sensor window, Faulty front sensor PCB
How to Fix / Troubleshooting
Safety first: Turn OFF the robot.
- Locate front sensors: Identify the dark plastic windows or camera lens on the front of the Hoover robot.
- Clean sensor surfaces: Use a soft, dry microfiber cloth to gently wipe the IR windows and camera lens. Do not use harsh chemicals.
- Remove obstructions: Ensure no decorative stickers, tape, or protective films are covering the sensor areas.
- Test navigation: Power ON and start a cleaning cycle. Observe if the robot now detects walls and obstacles correctly.
- If E18 continues: The front sensor PCB or camera module may be defective. Replacement of the front obstacle sensor board or camera should be done by a service technician.
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Repair Difficulty
Medium
3/5
Required Part
Front Obstacle Sensor Board
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