The cause is unknown.
Once the steam button has been switched, the descaling procedure cannot be stopped. It must now be completed through to the end. This is a security setting to ensure that the appliance is actually fully descaled.
Press ENTER once.
The program will stop.
If there is descaler in the water container, empty the water container.
To ensure that there are no residues of descaler remaining in the water container, rinse the water container thoroughly with clean water.
