error-7 Troubleshooting

Side brush error on the Dreame X40 Ultra

Source: Dreame support — robot vacuum troubleshooting Confidence: 85% Verified Aug 9, 2026

The side brush is not spinning. It may be jammed or the screw may have loosened.

How to fix Side brush error

Place on a level surface

Place the robot on a flat, level surface and restart.

Source: Dreame support — robot vacuum troubleshooting Confidence: 85% Verified Aug 9, 2026
Difficulty: ★ Est. 2 min

Check for obstacles

Remove any obstacles under the robot that may be lifting a wheel.

Source: Dreame support — robot vacuum troubleshooting Confidence: 85% Verified Aug 9, 2026
Difficulty: ★ Est. 2 min

Replacement parts for the Dreame X40 Ultra

← All Dreame X40 Ultra error codes

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