Miele Dishwasher Verzorging en onderhoud - Pagina 20

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Technical Information

2. Gap and contact corrosion occurs particularly where two parts

3. Tension crack corrosion/Hard crack corrosion is caused by

4. External rust/Rust film develops due to iron particles that have

Note

After filling the salt container, salt residues should not be

allowed to stay in the machine for a long period. It is

recommended to flush them away using a short wash

program (e.g. Short wash 100°F or Rinse & Hold).

of different materials contact each other (e.g. knife blade and

handle). At the contact point cracks and splits can develop in

the lower grade metal as the electrochemical properties of the

two materials are different and galvanic corrosion can develop.

First signs of such corrosion are dark discoloration and rust

marks at the contact point.

a manufacturing fault whereby a particular arrangement of

atoms causes areas susceptible to corrosion to develop.

become attached to the surface of rust-free metal. Possible

sources are:

a. Damaged dishwasher baskets:

A damaged basket can act as a rust carrier if the metal

tines under the plastic coating have begun to rust.

b. Rusting steel:

In addition to non-dishwasher-proof knives and damaged

blades, the fixing screws on the handles of pots and pans

may not be rust free and can be sources of rust.

c. Damaged enameled kitchen appliances/pots:

Damaged or poorly enameled areas (e.g. under the

handle of a pot) may, after contact with water, develop

rust, which is then spread during the wash cycle.

d. Mains water with high iron content:

Very rare.