E7
Ultenic
Gyroscope / IMU Calibration Error
Robot vacuum displays E7 and may spin in place or fail to navigate 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
Robot started on uneven surface, Internal gyroscope miscalibrated, Strong magnetic interference, Faulty IMU module
How to Fix / Troubleshooting
Safety first: Place the robot on a flat, level floor away from metal objects and speakers.
- Power cycle: Turn the main power switch OFF for 60 seconds, then ON again. Ensure the robot remains still during startup.
- Perform calibration (if supported): In the Ultenic app, look for a sensor calibration or reset mapping option and follow on-screen instructions with the robot on a level surface.
- Avoid interference: Move the robot away from large metal furniture, Wi‑Fi routers, and strong magnets during calibration.
- Test navigation: Start a short cleaning run in an open area and observe if the robot drives straight.
- If E7 persists: The IMU/gyroscope board on the main PCB may be defective. This typically requires main board replacement and should be done by an authorized technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board (IMU Circuit)
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