error-1 Troubleshooting

Bumper / cliff sensor error on the Xiaomi Robot Vacuum X20+

Source: Xiaomi support — smart home troubleshooting Confidence: 90% Verified Aug 9, 2026

The robot reports a sensor fault and stops or moves erratically. The bumper or cliff sensors may be blocked by dirt or damaged.

How to fix Bumper / cliff sensor error

Clean the LDS

Check for dust, hair, or obstructions around the laser sensor. Gently clean it and restart the robot.

Source: Xiaomi support — smart home troubleshooting Confidence: 90% Verified Aug 9, 2026
Difficulty: ★ Est. 5 min

Restart the robot

Turn the robot off and on to reset the sensor.

Source: Xiaomi support — smart home troubleshooting Confidence: 90% Verified Aug 9, 2026
Difficulty: ★ Est. 2 min

Replacement parts for the Xiaomi Robot Vacuum X20+

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← All Xiaomi Robot Vacuum X20+ error codes

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