C8
Dreame
Navigation Sensor or IMU Fault
Robot vacuum reports C8; navigation error or stuck in place despite clear surroundings.
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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
Obstructed top camera or sensors (on hybrid models), Internal IMU (gyroscope) calibration error, Loose navigation sensor cable, Faulty navigation sensor board
How to Fix / Troubleshooting
Safety: Turn off the robot before cleaning sensors.
- Clean all external sensors: Wipe the top camera lens (if present), side wall sensors, and front IR sensors with a soft, dry cloth.
- Relocate the dock: Place the charging dock in an open area away from mirrors, glass walls, and strong sunlight that can confuse sensors.
- Reboot and recalibrate: Power off the robot for 1–2 minutes, then power it back on. Some Dreame models allow a sensor or map reset via the app; perform this if available.
- Test in a simple room: Run the robot in a small, uncluttered room to see if the error reoccurs.
- Internal check (advanced): Open the top cover and verify that the navigation sensor board and IMU cable are firmly connected to the main board.
- Replacement: If navigation errors persist and other components are fine, replace the navigation sensor/IMU board as specified for your Dreame model.
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Repair Difficulty
Hard
4/5
Required Part
Navigation Sensor / IMU Board
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