E7
Kyvol
Side Brush Motor Overload / Stall
Robot vacuum reports E7 and stops, often with the side brushes not spinning.
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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
Side brush tangled with hair or string, Side brush hub cracked or deformed, Side brush motor seized, Side brush motor wiring loose
How to Fix / Troubleshooting
Safety: Turn OFF the robot and flip it over.
- 1. Remove side brushes:
- Use a screwdriver or pull off the side brushes (depending on your Kyvol model).
- Cut away hair and threads wrapped around the brush shafts.
- 2. Clean motor hubs:
- Inspect the side brush mounting posts for debris.
- Rotate the posts by hand; they should turn without grinding.
- 3. Reinstall and test:
- Reattach the side brushes firmly.
- Turn the robot ON and start a cleaning cycle; observe if the brushes spin.
- 4. Advanced check:
- If one side does not spin, remove the bottom cover and inspect the side brush motor wiring harness.
- Ensure the connector is secure on the main board.
- 5. Replace if needed:
- If the motor is noisy, hot, or does not turn even when powered, replace the affected side brush motor module.
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Repair Difficulty
Medium
3/5
Required Part
Side Brush Motor
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