Miele KM 6639-1 Operating And Installation Instructions page 60

Problem solving guide
Issue
An operating noise can
be heard after the
appliance has been
switched off.
 alternating with 
flashes in the timer
display.
1 and a number, e.g. 1-0
flashes alternately with
a 3 digit number in the
timer display.
 alternating with a
number flashes in the
timer display.
60
Cause and remedy
The cooling fan runs until the hob has cooled down
and then switches off automatically.
The hob is incorrectly connected.
 Contact your Miele dealer. The hob must be
connected to the mains according to the wiring
diagram.
Cooking zone fault
 Interrupt the power supply to the hob for approx.
1 minute.
 If the problem persists after power has been
restored, please contact your Miele dealer.

The overheating protection mechanism has been
activated.
 See „Overheating protection".
,  or 
The fan is blocked or defective.
 Make sure it has not been blocked by something
like a fork. Remove the cause of the blockage.
 If this fault code continues to appear in the
display, contact your Miele dealer.
 and other numbers
There is a fault in the electronic module.
 Interrupt the power supply to the hob for approx. 1
minute.
 If the problem persists after power has been
restored, please contact your Miele dealer.