Descaling - V-ZUG 771 Operating Instructions Manual

... Care and maintenance

Descaling

Whenever steam is produced, depending on the hardness of the local water
supply (i. e. the limescale content of the water), limescale is deposited in the
boiler.
The appliance automatically recognises when descaling is necessary.
– flashes in the digital display.
The time interval between descaling depends on the hardness of the water
and frequency of use. If steaming 4× 30 minutes per week, the appliance
must be descaled – depending on water hardness – roughly as follows:
Water hardness
Soft
Medium
Hard
Descaling takes about 45 minutes.
We recommend that the appliance be descaled whenever the warning
appears in the display.
Failure to descale the appliance will likely impair the functioning of or cause
damage to the appliance.
Descale after about
18 months
9 months
6 months
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