Chemical Processes And Technology - Miele PG8582 CD Operating Instructions Manual

In this section you will find a description of the causes of common chemical reactions
which can occur between different types of soiling, chemical agents and the components
of the machine, along with their remedies as necessary.
This section is intended as a guide. If unforeseen interactions occur during reprocessing,
or if you have any queries on this subject, please seek advice from Miele.
General notes
Problem
If elastomers (hoses and seals) and plastics
in the machine are damaged, for example
by swelling, shrinking, hardening or
brittleness of materials, tears and cracks,
components will not function correctly and
this generally leads to leaks.
Heavy foaming during a programme affects
cleaning and rinsing results. Foam escaping
from the wash cabinet can cause damage
to the washer-disinfector.
Cleaning processes cannot be regulated
and validated where there has been a build-
up of foam.
Corrosion to stainless steel in the wash
cabinet and to accessories can give them a
different appearance:
– rust (red marks / discolouration),
– black marks / discolouration,
– white marks / discolouration (etched
surface).
Corrosive pitting can lead to the washer-
disinfector not being water-tight. Depending
on application corrosion can influence
cleaning and rinsing results or cause
corrosion to stainless steel items in the
cabinet.

Chemical processes and technology

How to resolve it
– Establish the cause of the damage and
rectify it.
See information regarding "Chemical
agents", "Soiling" and "Reaction between
chemical agents and soiling".
– Establish the cause of the foam and
rectify it.
– Check the process used regularly to
monitor foaming levels.
See information regarding "Chemical
agents", "Soiling" and "Reaction between
chemical agents and soiling".
– Establish the cause of the corrosion and
rectify it.
See information regarding "Chemical
agents", "Soiling" and "Reaction between
chemical agents and soiling".
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