General notes
Problem
How to resolve it
If elastomers (seals and hoses) and
plastics in the machine suffer damage,
this can cause swelling, shrinkage,
hardening and brittleness in materials
and cause cracks to occur in them.
They will then not function correctly.
This usually takes the form of them not
being water-tight.
– Establish the cause of the damage
and put it right.
See information regarding "Chemical
agents", "Soiling" and "Reaction between
chemical agents and soiling".
Heavy foaming during a programme
affects cleaning and rinsing results.
Foam escaping from the wash cabinet
can cause damage to the machine.
Cleaning processes cannot be
regulated and validated where there
has been a build-up of foam..
– Establish the cause of the foam and
put it right.
– Check the process used regularly to
monitor foaming levels.
See information regarding "Chemical
agents", "Soiling" and "Reaction between
chemical agents and soiling".
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
machine not being water-tight.
Depending on application, corrosion
can influence cleaning and rinsing
results (laboratory analysis) or cause
corrosion to stainless steel items in the
cabinet.
– Establish the cause of the corrosion
and put it right.
See information regarding "Chemical
agents", "Soiling" and "Reaction between
chemical agents and soiling".
Chemical processes and technology
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