Miele KFN 29683 D obsw Operating And Installation Instructions page 76

Problem solving guide
Message

 lights up red in the
display and an alarm
also sounds.
76
Cause and remedy
Indication of an interruption to the power supply:
the temperature in the appliance over the last few
days or hours has risen too high because of a power
cut or interruption to the power supply.

 Touch  in the display.
The fault message is confirmed:

 goes out and the alarm will stop.
The start screen appears in the display: the warmest
temperature recorded in the freezer section will flash
for about 1 minute in the display. Then the
temperature display will change to the current
temperature in the freezer section.
You can exit from the flashing temperature display
early:
 Touch the temperature display for the freezer
section.
The warmest temperature display will go out. The
display will then revert to showing the current
temperature in the freezer section. The appliance will
then work at the lower temperature setting.
 Rectify the cause of the alarm.
 Depending on the temperature displayed, you
should check the condition of food in the freezer. If
it has defrosted or started to defrost, check that it
is still safe to use and, if so, use it as soon as
possible. Defrosted food may only be re-frozen
after it has been cooked.