Bosch NGU41.1DB, Instruction Manual

Page: 7 / 24

7
Advance cleaning of burner cup and cap
Clean the burner cap (1) and burner cup (2) with water and
washing-up liquid. Dry the individual parts carefully.
Place the burner cup and cap back on the burner shell (5).
Ensure that the igniter (3) and flame safety pin (4) are not
damaged.
The nozzle (6) must be dry and clean. Always position the
burner cap exactly over the burner cup.
Making settings on the hob
Your hob is equipped with four gas burners. The following
information explains how to light the gas burners and set the
size of flame.
Lighting the gas burner
Always position the burner cap exactly over the burner cup.
Openings on the burner cup must always be unobstructed. All
parts must be dry.
1.
Turn the rotary knob for the desired burner anti-clockwise to
the ignition position
8
. Ignition begins.
2.
Press and hold the rotary knob for approximately 3-5
seconds. The gas burner ignites.
The safety ignition is activated. If the gas flame goes out, the
gas supply is automatically interrupted by the safety ignition
system.
3.
Set the desired flame size. Between setting
Ú
Off and setting
›
, the flame is not stable. Therefore, always choose a setting
between
›
large and
œ
small flame.
4.
If the flame goes out again, repeat the process from step 1.
5. To switch off the hotplate: Turn the rotary knob
Ú
clockwise to
the Off position.
The ignition device should not be actuated for more than 15
seconds. If the burner does not light within 15 seconds, wait for
at least one minute. Then repeat the ignition process.
:
Caution:!
If you turn the rotary knob straight after switching the cooker off,
gas will escape. If you do not turn the knob to the ignition
position
8
,the gas supply will be interrupted after 90 seconds.
No ignition occurs
If there is a power cut or if the ignition plugs are damp, you can
light the gas burners with a gas lighter or a match.
Warnings
It is normal to hear a soft whistling noise while the burner is
operating.
When 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.
An orange-coloured flame is normal. This is caused by the
presence of dust in the atmosphere, spilt liquids, etc.
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 1 minute.
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.