Electronic Ignition/Reignition; Typical Flame Characteristics; Power Failure - Bosch NGT73 Mode D'emploi

Burner Control Knobs
The standard burner controls have an infinite number
of heat settings with no fixed positions.
To operate: Select the appropriate control knob, push
down and turn counterclockwise to the desired flame
size. Turn OFF by turning the control knob clockwise to
OFF.
A rubber grommet is located under each control knob.
To remove knob and grommet: With burner in
the OFF position, gently lift knob up and off. Gently pull
grommet toward center and lift out.
WARNING: To avoid electric shock, do not
!
reach through opening into rough-in box.
To replace grommet and knob: Replace grommet by
placing center groove around cooktop. The rubber grom-
met should be firmly attached around the cooktop open-
ing. Place the control knob indicator line at the OFF
position; press down firmly.

Electronic Ignition/Reignition

The cooktop uses electronic igniters to light the
burners. There is no pilot light. Each burner has its own
igniter. If a burner flame blows out during use, the burner
will automatically reignite.
CAUTION: All igniters spark when any single burner is
turned ON or the reignition system is activated. Do not
touch any of the burners when the cooktop is in use.
COOKTOP OPERATION
(continued)
The ignitor should be clean and dry for proper opera-
tion.
• Avoid getting water or food on the igniter.
• If the igniter is wet or soiled, it may spark without
igniting the burner, or even spark continuously when
a flame is present.
Note: If the burner does not light within 4 seconds,
turn the burner off. Check to see that the cap is posi-
tioned correctly on the burner base and the igniter is
clean and dry. If a burner still fails to ignite, see Before
Calling for Service on Page 10.

Typical Flame Characteristics

The burner flame should be blue in color and stable
with no yellow tips, excessive noise or fluttering. It should
burn completely around the burner cap.
Foreign particles in the gas line may cause an orange
flame during initial use. This should disappear with use.
Check burner cap to make sure port holes are not
obstructed. If the ports are clogged, see Before Calling for
Service on page 10.
Note: An audible "pop" may be heard when the
burner is turned off manually. The "popping" may be
louder with LP gas than with natural gas. This is normal.

Power Failure

In the event of a power failure, the burners can be
ignited manually.
If the cooktop is being used when a power failure
occurs, turn all the burner control knobs to the OFF
position. The burners can then be ignited manually by
holding a match at the ports and turning the control knob
to the HI position. Wait until the flame is burning all the
way around the burner before adjusting the flame to the
desired height.
CAUTION: The reignition feature will not work in
the event of a power failure.
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