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Troubleshooting
IGBT overheating
Sensor overheating
Cooling fan failure
Abnormal temperature in
ventilation system
Air duct blocked /
Startup failure of the ventilation
system
The supply voltage is below
the rated voltage.
The supply voltage is above
the rated voltage.
Ventilation system error
Extractor fan
communication error
Communication error
Board failure
/
*
* Display on 2 cooking zones behind each other
78
Wait until the IGBT temperature has
dropped to a normal level and then
switch the hob back on.
If the cooling fan does not function
normally, it must be replaced by a
certified electrician.
Check the air duct for blockages,
remove them if necessary
and then restart the appliance.
Make sure that the power supply is
normal.
Then switch the hob back on.
Contact a suitably qualified
electrician.
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