Thermador SGS305FS User Guide

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English 10
Burner Control Knob Removal
To remove knob and grommet: With burner in the OFF 
position, gently lift knob up and off. Gently pull the grommet 
from the sides and lift out.
WARNING: 
To avoid possible electric shock, do not reach 
through control opening into rough-in box.
To replace grommet and knob: Carefully insert the 
grommet into the opening, ensuring that the maintop is 
seated in the track around the entire perimeter of the 
grommet. Replace control knob by placing indicator line at 
the 12 o’clock position. Press down firmly. 
Operation
About the Appliance
Use the cooktop for surface cooking applications such as 
boiling, frying, simmering, steaming and sauteing.
Operation
WARNING: 
The burning of gas cooking fuel can create 
small amounts of Carbon Monoxide, Benzene, 
Formaldehyde and Soot. To minimize exposure 
to these substances, the burners should be 
adjusted by a certified installer or agency to 
ensure proper combustion. Ensure proper 
ventilation with an open window or use a 
ventilation fan or hood when cooking with gas. 
Always operate the unit according to the 
instructions in this manual.
The cooktop has one control knob for each burner. Push 
down and turn to the desired heat setting.
Normal Operation (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: 
Do not touch any of the burners when the 
cooktop is in use. 
SGS models only: All ignitors spark when any 
single burner is turned on.
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, 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 burner cap is positioned 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 17
.
When a flame is present and a Low setting is used, the 
igniter may occasionally spark. This is normal.
In the Event of a Power Failure
In the event of a power failure, only the standard 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 standard 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.
The two ExtraLow® burners on SGSX models cannot be 
ignited manually. Be sure to turn ExtraLow knobs OFF if a 
power failure occurs. The burners will not turn back on until 
both control knobs are turned OFF and then turned back 
ON again after power has been restored. See “WHAT TO DO IF YOU SMELL GAS” on page 1.
WARNING: 
The reignition feature will not work in the event 
of a power failure.