E11
Bissell
Wall / Edge Sensor Error
Robot vacuum displays E11 and may stop near walls or furniture; app may mention wall sensor issues.
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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-facing IR wall sensors, Faulty wall-follow sensor module, Loose sensor wiring, Strong sunlight saturating IR sensors
How to Fix / Troubleshooting
Safety first: Power off the robot and place it on a table or bench.
- Locate wall sensors: Identify the small side-facing IR windows on the robot's perimeter.
- Clean sensor windows: Wipe each window gently with a microfiber cloth to remove dust and smudges.
- Test in controlled lighting: Run the robot in a room with moderate, indirect lighting (avoid direct sun) to see if the error clears.
- Check for physical damage: Inspect the sensor windows and surrounding plastic for cracks or impact damage.
- If E11 persists: The wall sensor module or its wiring harness may be faulty. Replace the wall/edge sensor board as needed.
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Repair Difficulty
Medium
3/5
Required Part
Wall/Edge Sensor Board
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