Miele PT 5135 C OS Operating And Installation Instructions page 46

Settings/Supervisor level menu
Cleaning the airways
Fluff should be removed after drying.
The Clean out airways message will
remind you to do this when a certain
amount of fluff has collected. You can
decide at what level of fluff this
reminder should be given.
You will have an idea of how often this
should be done after a few drying
programmes.
Off
Clean out airways does not appear
Heavy
Clean out airways only appears when
there is a heavy build-up of fluff
Normal
Factory default setting
Light
Clean out airways appears when there
is only a small build-up of fluff
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Cleaning the heat exchanger
Check the heat exchanger unit from
time to time, and clean it if
necessary. The Clean heat
exchanger Maintenance message
will remind you to do this. You can
decide after how many hours you
want the message to appear.
Setting the correct option will depend
on how much fluff and dust has
accumulated.
Select a more appropriate option if you
find that the heat exchanger is very
dirty/not very dirty at the end of the set
period of time.
The machine is delivered with this
option set at: 400 hours.
Cool air free of charge
If the dryer has been fitted with a
payment system, you can set the
Cool air programme to be free of
charge.
The machine is delivered with this
option set at: Free of charge.