'Fill water tank' displayed though water tank is full — Limescale in the water tank

What does Fill water tank (full tank) mean?

The machine displays 'Fill water tank' even though the water tank is visibly full. This issue typically arises from a significant buildup of limescale affecting the water level sensor within the tank.

• A lot of limescale has accumulated in the water tank.
• Water level sensor in the tank is obstructed by limescale.

Click steps to track your progress.

1. 1

   Descale the water tank specifically, following instructions in Chapter 5 'Maintenance – Descaling the water tank'.

2. 2

   Remove the water tank and thoroughly clean the bottom interior to remove any visible limescale.

3. 3

   Ensure the water tank is properly seated after cleaning and refilling to allow the sensor to function correctly.