If the Xiaomi Robot Vacuum X20+ prompts that the dirty water tank is abnormal, please refer to the following steps:
1. If the dirty water tank is full, please empty it;
2. Make sure the dirty water tank is properly installed and gently press it into place;
3. Make sure there is no debris or blockage in the dirty water tank sensor area;
4. Avoid using the vacuum in extremely humid or low-temperature environments, which can affect tank detection;
5. Ensure the station is placed on a flat surface and connected properly to power;
6. Do not forcefully remove or insert the water tank to prevent damage to internal connectors;
7. If the issue persists, please contact after-sales service for further inspection.