The water hardness has not been set yet.
Set your water hardness.
Switch the steam ironing system off.
Press and hold the button (Descale) and press the On/Off switch at the same time.
When the indicator light (Descale) lights up yellow, release the button (Descale).
The indicator light (Water container empty) flashes.
Compare the flashing pattern with the water hardness table that can be found in the operating instructions.
To increase the set water hardness, press the button (Descale). Each press of the button increases it by 1 level. When the highest value is reached, the setting starts again at level 1.
The indicator light (Water container empty) flashes according to the setting you select.
To exit the setting, press the On/Off switch .
Consult the operating instructions for further information.