Thermador PRD304WHC/U Guía De Uso Y Cuidado página 21

Automatic re-ignition
Each burner has its own electronic igniter that sparks
when the burner is turned on. Each burner should light in
4 seconds or less. If a burner does not light, check to see
that the cap is positioned correctly on the base.
If any one or more burners blow out, the electronic igniter
automatically activates to re-light the flame. Do not touch
the burners when the igniters are active.
9 CAUTION
DO NOT touch the burners when the igniters are
sparking.
IMPORTANT
• For proper combustion do not use the rangetop
without the burner grates in place.
• There is a slight sound associated with gas
combustion and ignition. This is a normal condition.
• On rangetops using propane gas (LP), a slight "pop"
sound may be heard at the burner ports a few seconds
after the burner has been turned off.
Power failure
9 WARNING
In the event of a power failure, turn all knobs to the
OFF position. Only the standard burners can be lit
manually.
• In the event of a power failure, only the standard
burners can be manually lit. It is necessary to light
each one individually.
• If the rangetop is being used when the power failure
occurs, turn all knobs to the OFF position.
• The standard burners can be lit by holding a match at
the ports and turning the control knob to the HI
position. Wait until the flame is burning all around the
burner cap before adjusting the flame to the desired
height.
• The burners with the ExtraLow
used during a power failure. Be sure to turn them off.
• If a burner with ExtraLow is on when a power failure
occurs, it cannot be turned back on until the knob is
first turned off.
• If you smell gas, refer to safety precautions listed in
the Safety chapter.
Page. 28
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feature cannot be
Flame height
• The correct flame height depends on 1) size and
material of pan being used; 2) food being cooked; and
3) amount of liquid in the pan.
• Never extend the flame beyond the base of the pan.
• Use a low or medium flame for pan materials that
conduct the heat slowly, such as porcelain coated
steel or glass-ceramic.
Flame description
Flame characteristics
Yellow flames:
Further adjustment is
required.
Yellow tips on outer cones:
Normal for LP Gas
Soft blue flames:
Normal for natural gas
• If the flame is completely or mostly yellow, verify that
the regulator is set for the correct fuel. After
adjustment, retest.
• Some orange-colored streaking is normal during the
initial start-up.
• Allow unit to operate 4-5 minutes and re-evaluate
before making adjustments.
• The burner flame color should be blue with no yellow
on the tips. It is not uncommon to see orange in the
flame color; this indicates the burning of airborne
impurities in the gas and will disappear with use.
• With propane (LP) gas, slight yellow tips on the
primary cone are normal.
• The flame should burn completely around the burner
cap. If it doesn't, check that the cap is positioned
correctly on the base and that the ports are not
blocked.
• The flame should be stable with no excessive noise or
fluttering.