Siemens · EQ900 TQ900 Coffee Machines
The display prompts to fill the water tank, even though it is visibly full. This indicates a problem with the tank's seating, water quality, filter, or an internal sensor.
Click steps to track your progress.
Insert the water tank correctly and ensure it is seated firmly in place.
Empty the water tank and refill it with fresh, still tap water; avoid using carbonated water.
Remove the water tank and clean it thoroughly, ensuring the float moves freely.
If a new water filter was inserted, rinse it according to the instructions and then place it into operation.
If air is in the filter, immerse it in water with the opening upwards until no more bubbles appear, then reinsert it.