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English 18
Step 10: Burner Test and
Adjustment
Install any loose components, such as burner caps and
grates, that may have been removed earlier. Be certain that
burner caps seat properly into the burner bases. Before
testing operation of the appliance, verify that the unit and
the gas supply have been carefully checked for leaks and
that the unit has been connected to the electrical power
supply. Turn the gas shut-off valve to the open position.
Test Rangetop Burners
Test Burner Ignition. Select a rangetop burner knob.
Push in and turn counterclockwise to HI. The ignitor/spark
module will produce a clicking sound. Once the air has
been purged from the supply lines, the burner should light
within four (4) seconds.
Test Flame: High Setting. Turn burner on to HI. See
Figure 13 for appropriate flame characteristics.
If any of the rangetop burners continue to burn mostly or
completely yellow, verify that the burner cap is positioned
properly on the burner base, then retest. If flame
characteristics do not improve, call Thermador.
Test Flame: Low Setting. Turn burner on to SIM. Verify
that the flame travels complete around the burner. This is
known as “carry over“. There should be a flame at each
burner port and there should be no air gap between the
flame and the burner. If any burners do not “carry over“, call
Thermador.
The two left burners feature XLO, that causes the flame to
cycle on and off when the knob is set to the XLO range.
This is normal operation.
Repeat these Ignition and Flame Test procedures for each
rangetop burner.
When Flame is Properly Adjusted:
• There should be a flame at each burner port.
• There should be no air gap between the flame and
burner port.
Test Oven Burners
Remove the oven bottom cover. Remove the 4 screws
on the sides and the 2 screws on the back, then slide the
cover forward while lifting to clear the angled baffle plate
mounted to the bottom of the cover.
Note:
The air shutter for the bake burner is set at the factory for
fully-open position under all conditions, and does not
require adjustment.
Test Bake Burner Ignition
Set the oven to BAKE at 350°F. After 30-75 seconds, the
burner will ignite. The burner will stay lit until 350°F is
reached and then shut off. From this point forward, the
burner will cycle on and off to maintain the temperature.
Figure 13: 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.
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