WMF Bueno Bedienungsanleitung Seite 11

Decalcifying
Limescale and calcium deposits result in a loss of energy and impair
the service life of the appliance. The appliance will switch off
prematurely if the deposit is too excessive. It is then very difficult to
remove the deposit. For this reason, decalcify the appliance at regular
intervals.
We recommend using durgol® universal. This decalcifying agent is
highly effective and gentle to the material.
You can obtain this decalcifier where you bought the appliance or
directly from select dealers, or you can order it directly from wmf
consumer electric.
Before decalcifying, disconnect the appliance from the power supply
and let it cool down. Fill in 1 to 2 cups of durgol® universal and wait
until the calcium deposit is removed from the bottom of the kettle.
Then fill the appliance with tap water up to the limescale/calcium
mark on the wall and leave to stand for 15 minutes. Pour out the
water and rinse the kettle thoroughly with cold tap water.
Do not heat up the kettle during the decalcification process.
Important. Warranty compensation does not cover damage that occurs
due to non-compliance with the decalcification instructions.
Causes of faults
▪ The appliance switches off before boiling:
The kettle bottom is too strongly calcified
▪ There is not enough water in the kettle:
The appliance does not switch off
▪ The lid is not closed:
The appliance cannot be switched on
The kettle has not cooled down sufficiently after being operated with
no or too little water.
If the fault cannot be remedied, you must return the appliance for
repair.
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