Automatic Reignition - Thermador PRDS304 Care & Use Manual

SECTION FOUR: USING THE COOKTOP
USING THE COOKTOP
THINGS TO CONSIDER
WHEN SETTING AND
ADJUSTING CONTROL
KNOBS
• The type and quantity of the food
will affect which setting to use.
• The size, type and material of your
pan will affect which setting to use.
• Temperature control will be more
accurate if a lid is used.
• Bring food to a rolling boil; stir
well to be sure all the food is
boiling; cover and reduce the heat
to just below LO.
• Check periodically to see if the
control knob should be turned to
a lower setting.
• When a large pan is used on a
small burner, it may cause the
simmer action to occur mainly in
the center of the pan. When the
food is stirred, the cooler food
near the edges of the pan may
result in an overall temperature
too cool to simmer. If this hap-
pens, turn the burner up slightly.
• It is normal to stir food occasion-
ally. This is especially important
when simmering for several hours.
For example: a homemade spa-
ghetti sauce or beans.
• Adjust control knob to lower set-
tings in small steps.
• If control is set too low to main-
tain simmer, bring the food back
to a boil before setting to a higher
simmer setting.
• It is normal not to see simmer
bubbles immediately after the food
has been stirred.
• While the flame is ON there may
be bubbling; there should be at
least steam and a slight quiver of
the liquid's surface.
• Simmer bubbles may not be seen
when the flame has cycled OFF.
ELECTRONIC IGNITION
Igniter
STAR™ BURNER BASE
WITH IGNITER
The cooktop uses electronic igniters
to light the burners. Each burner has
its own igniter that sparks when any
burner is turned on.
igniters are clicking (sparking), do
not touch the burners. If a burner
fails to ignite, see "Before Calling for
Service", page 40.

AUTOMATIC REIGNITION

If any burner flame blows out, the
electronic igniter automatically sparks
on all burners to relight the flame.
Do not touch any burner while
the igniters are clicking.
POWER FAILURE
In the event of a power failure, only
the standard burners can be lighted
manually. It is necessary to light each
standard burner individually.
If the cooktop is being used when the
power failure occurs, turn all the
burner control knobs to the OFF
position. Then the standard burners
can be lighted 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 cap before adjusting the
flame to the desired height.
®
The two ExtraLow burners located
on the far left side cannot be used
during a power failure. Be sure to
Page 12
turn them OFF if a power failure
occurs, as they will not turn back on
until both control knobs are turned
OFF and then turned back on again.
See "What To Do If You Smell Gas",
inside front cover.
The Griddle and Grill in all units can
not be used during a power failure.
FLAME HEIGHT
The correct height of the flame
depends on the size and material of
the utensil being used, the food being
cooked and how much liquid is in the
utensil. Here are some basic rules
for selecting the flame height.
• The flame should never extend
When the
beyond the bottom of the pan.
• Utensils which conduct heat slowly
(such as glass-ceramic) should be
used with a low or medium flame
unless you are cooking with a large
amount of liquid.
BURNER CAP IN PLACE
WITH FLAME SPREADER
AND BURNER BASE
BURNER EFFICIENCY
AND 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.