Lime Filter; Dry Running And Overheating Protection; Lift-Off Shut-Off; Cleaning - Graef WK 401 Mode D'emploi

once more. However, before doing that, please wait about 30 sec.
after the unit automatically shut itself off.

lIME fIltEr

The removable lime filter prevents lime scale being poured out.

dry runnInG and oVErhEatInG ProtEctIon

This unit is equipped with a dry running and overheating protection
system. If you ever operate the unit without any water or with too
little water, the unit shuts itself off. Wait a moment until the unit has
cooled off. Fill the unit with water and continue as usual.

lIft-off shut-off

If you happen to lift the unit off the base station while boiling, the
unit shuts itself off. This is the so-called lift-off shut-off.

clEanInG

First pull the plug out of the electric socket and let the unit cool off.
Clean the exterior of the unit with a soft, moist cloth. If heavily
soiled, you can use a mild detergent.

dEcalcIfyInG

Depending on the hardness degree of the water, lime scale can build
up over time on the bottom and on the interior wall of the stainless
steel tank. The harder the water, the faster the lime scale builds up.
That is harmless but it can impair the performance of the unit.
For that reason, we recommend regularly decalcifying the unit as
follows
Fill the unit three-quarters full with water.
●
Boil it.
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After the unit has shut itself off, fill the unit additionally with dis-
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tilled white vinegar up to the MAX mark.
Important: Never boil this mixture!
Let the mixture stand overnight.
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Empty the unit and rinse it out several times with clear water.
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