NEFF T T 2 Series, Instruction Manual

Page: 27 / 44

27
Fixing malfunctions
Malfunctions are generally caused by minor faults. Before
contacting the Technical Assistance Service, ensure you have
read the following recommendations and warnings.
Normal noise while the appliance is working
Induction heating technology is based on the creation of
electromagnetic fields that generate heat directly at the base of
the pan. Depending on how the pan has been manufactured,
certain noises or vibrations may be produced such as those
described below:
A deep humming sound as in a transformer
This noise is produced when cooking with a high power level. It
is caused by the amount of energy transferred from the hob to
the pan. The noise disappears or becomes faint when the
power level is lowered.
A low whistling sound
This noise is produced when the pan is empty. The noise
disappears when water or food is added to the pan.
A crackling sound
This noise occurs in pans which are made from different
materials superimposed on one another. It is caused by the
vibrations that occur in the adjoining surfaces of the different
superimposed materials. The noise comes from the pan. The
amount of food and cooking method can vary noise intensity.
A high-pitched whistling sound
This noise is produced mainly in pans made from different
materials superimposed on one another, and it occurs when
such pans are heated at maximum power on two hotplates at
the same time. The whistling disappears or becomes fainter as
soon as the power level is lowered.
Noise from the fan
For proper use of the electronic system, the temperature of the
hob must be controlled. To do this, the hob has a fan which
turns on when a high temperature is detected. The fan may also
work by inertia after the hob has been switched off, if the
temperature detected is still too high.
The noises described are normal, they are part of induction
heating technology and not a sign of malfunction.
Indicator Malfunction Measure
none The electric power supply has been cut off. Check other electrical appliances to check whether there has been a
power cut.
The appliance has not been properly con-
nected following the connection diagram.
Check that the appliance has been connected properly according to
the connection diagram.
Electronic system malfunction. If the malfunction is not resolved by the above checks, contact the
Technical Assistance Service.
“
flashing
The control panel is wet or an object is
resting on it.
Dry the control panel area or remove the object.
Ҥ
+ number /
š + number /
¡
+ number
Electronic system malfunction. Disconnect the range from the mains. Wait about 30 seconds, then
connect it again.*
“§„‰
The Tipp control was dragged instead of
slanting it towards the required hotplate
Wait a few seconds, then switch on the range and hotplate properly
once again.
”‹
/
”Š
There is an internal error in the system. Disconnect the range from the mains. Wait about 30 seconds, then
connect it again.*
”ƒ
The electronic system has overheated and
the related hotplate has been switched off.
Wait for the electronic system to cool down. Then push any symbol
on the range.*
”…
The electronic system has overheated and
all of the hotplates have been turned off.
—‚
Incorrect voltage supply, outside the nor-
mal operating limits.
Please contact your local electricity company.
—ƒ
/
—„
The hotplate has overheated and switched
off to protect its working surface.
Wait until the electronic system has cooled down sufficiently before
switching the hotplate back on.
* If the indicator persists, call the Technical Assistance Service.
Do not rest hot pans on the control panel.