Cooktop Operation - Bosch HDS256U Use And Care Manual

Burner Control Knobs
Control Knobs - Front View
OFF
LO
HI
The burner controls have an infinite number of heat settings
with no fixed positions.
To LIGHT: Select the appropriate control knob, push in and turn
counterclockwise to the flame symbol. The ignitor will click.
To SET FLAME SIZE: After lighting, turn counterclockwise to the
desired flame size.
Turn OFF by turning the control knob clockwise to OFF.
A plastic bezel is located under each control knob
To remove knob, spring and bezel: Place knob in the OFF
position. Pull straight out and off. Spring and bezel will be loose
and can be pulled straight off after the knob is removed.
To replace knob, spring and bezel: Place spring and knob
on top of bezel being careful to line up center holes. Push down
on knob so that spring is tense. With knob in off position, place
center hole around shaft on range and push bezel, spring and
knob in toward range. Release knob.
Electronic Ignition
The cooktop uses electronic igniters to light the burners. There
is no pilot light. Each burner has its own igniter. For best results,
center the pan over the burner before ignition.
The ignitor should be clean and dry for proper operation.
• Avoid getting water or food on the igniter.
• If the igniter is wet or soiled, it may spark without igniting
the burner.
Note: If the burner does not light within 4 seconds, turn the
burner off. Check to see that the cap is positioned correctly on
the burner base and the igniter is clean and dry. If a burner still
fails to ignite, see Self Help - Cooktop, page 29 .

Cooktop Operation

OFF
HI SIM
LO
.
Typical Flame Characteristics
For natural gas use, 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. For Propane
(LP) use, some yellow tips are normal.
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 Cleaning the Cooktop, page 23 .
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.
Refer to the Cooking Guide (previous page) for flame settings.
Power Failure
In the event of a power failure, the burners can be ignited
manually. Hold a match at the ports and turn 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: All igniters spark when any single burner is
turned ON. Do not touch any of the burners when the cooktop
is in use.
Burner Performance
For best cooking results, observe the following burner charac-
teristics:
PowerSim™ Burner (Right Front): The PowerSim™ burner
is the most verstile of the burners. The cap retains heat longer
than normal burner caps and prohibits the flame from touching
the cookware. This results in a gentle, more predictable, heat.
It can be set low enough to simmer sauces without scorching.
However, the flame can also be set high enough to stir-fry and
boil quickly. The large size of the burner cap allows the burner
to accomodate large pots, so it is also well suited to cooking
large quantities of food.
Right Rear: The right rear burner is the smallest burner. It
is well suited for delicate cooking such as melting chocolate and
butter.
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