Miele PG 8504 Operating Instructions Manual page 108

Frequently asked questions
Problem
Items made of glass are
showing signs of corro-
sion.
Stainless steel items are
showing signs of corro-
sion.
108
Possible cause and solution
The items are not suitable for machine reprocessing.
Only use items which are declared by their manufacturer

as suitable for machine reprocessing.
Neutralization has not taken place during the program.
- Dispense using the DOS 2 reservoir  in the door:
Refill the reservoir with neutralizing agent.

- Dispense via an external container:
Check the level in the reservoir and prime the dispensing

system if necessary.
The wash temperature was too high.
Select a different program.

or
Reduce the wash temperature.
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The process chemicals used were too alkaline.
Use a milder process chemical.

or
Reduce the concentration of process chemicals.

The stainless steel is of insufficient quality for machine re-
processing.
Only use stainless steel items made of high quality stain-

less steel and follow the instructions of the manufacturer
regarding machine reprocessing.
The chloride content in the water is too high.
Have a water analysis check carried out. Connection to

an external water processing unit and the use of dem-
ineralized water may be necessary.
Neutralization has not taken place during the program.
- Dispense using the DOS 2 reservoir  in the door:
Refill the reservoir with neutralizing agent.

- Dispense via an external container:
Check the level in the supply container and vent the dis-

pensing system if necessary.
Rust or superficial rust has built up in the wash cabinet,
e.g. due to an excessively high iron content in the water or
rust on other wash load items.
Check the installation.

Discard any rusty items.
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