Siemens EC645PB90E - Manual (Page 9)

10
Warnings It is normal to hear a slight whistling noise while the
burner is operating.
When it is first used, it is normal for the burner to give off
odours; this does not pose any risk and does not indicate
a malfunction; they will disappear in time.
A few seconds after the burner is switched off, a sound
(thud) will be produced. This is not a fault - this means
that the safety device is no longer operating.
Keep the burner as clean as possible. If the ignition
sparkers are dirty they will not light properly. Clean them
periodically using a small non-wire brush. Bear in mind
that the ignition sparkers must not suffer any serious
impacts.
An orange-coloured flame is normal. This is caused by
the presence of dust in the atmosphere, spilt liquids, etc.
The kitchen will become hot and humid when this gas
appliance is used.
You must therefore ensure that the kitchen is well
ventilated:
either keep the natural ventilation apertures open, or
install a ventilation system (extractor hood).
If using the appliance intensively for prolonged periods,
you may require additional ventilation (e.g. by opening a
window) or more effective ventilation (e.g. by increasing
the hob's ventilation, if possible).
If the burner flames are accidentally blown out, switch off
the burner operating control knob and do not try to relight
it for at least one minute.
Inner flame on full power.
Inner flame on minimum power.