Miele CS 1223 Operating And Installation Instructions page 25

... one of the following has occurred:
– The booster has automatically
switched off early.
– C and 0 flash alternately in the
display.
The overheating protection mechanism
has been triggered (see "Overheating
protection").
... the food in the wok hardly heats
up or does not heat up at all when
the Auto heat-up function is switched
on
This might be because a large quantity
of food is being cooked.
Select a higher continued cooking
setting.
Problem solving guide
... The cooling fan continues to run
after the appliance has been
switched off
This is not a fault. The fan will continue
running until the appliance has cooled
down. It will then switch itself off
automatically.
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