Thank you for contacting us. We're truly understand how confusing of having this problems. Here're some steps for you to check:
1. Confirm that the water level has reached the minimum level required in the instruction manual, and that the water tank or basin is installed correctly.
2. Check the water tank, float, sensor area, and bottom water level area for scale, milk residue, foreign objects, or air bubbles.
3. After emptying the old water, add clean room temperature water to avoid foam, detergent residue, or excessive minerals affecting the test results.
4. Ensure the device is placed level; do not tilt it or place it on a soft mat.
5. Restart the device and rerun the corresponding program to observe if the water shortage or abnormal water level warning persists.
6. If local water quality is hard, it is recommended to descale and clean the area before retesting.
If the problem cannot be solved still, please contact the manual support.
