Miele KM 400 Operating Instructions Manual page 19

All repairs should be performed by a
trained technician in strict
accordance with national and local
codes. Any repairs or maintenance
performed by unqualified personnel
could be dangerous.
Some minor problems can be resolved
as follows:
This is normal, and occurs as the
moisture in the insulation evaporates.
Check whether:
^ the electrical circuit has blown a fuse
or "tripped" the circuit breaker.
If power cannot be restored, it may be
necessary to call either an electrician or
the Miele Technical Service
Department.
This is normal. The sound will
disappear once the cooktop is hot.
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