If the error icon with an exclamation mark lights up on the display of the Xiaomi Truclean W10 Ultra Wet Dry Vacuum, please try the following steps to troubleshoot the issue:
1. Please carefully check whetehr the dirty water tank and the roller brushbar installed in the designated position within the vacuum;
2. Check and clean the pipeline and the dirty water tank thoroughly for any obstructions that may be hindering proper airflow. Additionally, examine the suction port of the floor brush and the pipeline of the dirty water outlet to ensure they are free from blockages;
3. Please check if the dirt detection sensor is dirty and clean it to enhance its accuracy in identifying and addressing dirt particles effectively.
If the above troubleshooting methods can’t resolve the issue or there’s a voice alert with the error icon, please contact our local official service center or your seller for further assistance. They will help you in this regard.