Thermador Professional PRO-GRAND PG30 Instructions D'installation page 20

Step 9: Burner Test and Adjustment
Test Oven Burners
Remove the oven bottom cover. Remove the 4 screws
that attach the cover to the bottom of the oven, then lift
the cover and angled baffle plate out to expose the U-
shaped bake burner.
Test Bake Burner mgnition
Set the oven to BAKE at 350°F. After a short delay, the
burner will ignite. The burner will stay lit until 350°F is
reached and then shutoff. From this point forward, the
burner will cycle on and off to maintain the tempera-
ture.
Test Bake Burner Flame
While the bake burner is lit, inspect the flame. See
Figure 9 for proper flame characteristics. If the flame
burns completely or mostly yellow, it is necessary to
adjust the bake burner air shutter. See Figure 10 and
the Flame Adjustment procedure in the following
section.
Test Broil mgnition
Set cooking mode to BROIL. The broil burners will
ignite after 30-75 seconds.
F_ame Adjustment _if necessary}i."
Tube-style gas burners used in Thermador© appli-
ances have air shutter systems which are similar to
the illustration in Figure 10, and can be adjusted using
the following method (unless adjustment is not rec-
ommended). It is necessary to remove the burner
from the appliance in order to perform air-shutter
adjustments.
• Loosen shutter screw(s) and turn shutter to new
position.
• Adjust the shutter to more-closed position if the
flame is lifting or blowing, or is not carrying over.
Adjust the shutter to more-open position if the
flame is too yellow. (See Figure 10.)
• Re-tighten the shutter screw(s).
• After adjustment, re-installthe burnerand perform
flame evaluation. The air shutter must fit over the
orifice hood for proper operation of the burner.
• Repeat procedure as needed until flame char-
acteristics are acceptable. (See Figure 9.)
NOTE: The two infrared ceramic broil burners do not
have air shutters, so no adjustment is provided.
RepLace oven bottom cover. Slide cover into place
and reattach to bottom of oven cavity.
WARNtNG
Burner adjustments must be performed by a
qualified technician. Rmproper adjustments may
cause harmfu_ by-products or void the
appliance's warranty.
AHow burners to coo_ before attempting to
remove them!
F_G. 10 Air Shutter Adjustment (if necessary)
Screw
More Carryover
Less Lifting or Blowing
Call Thermador@ if:
1. Any of the burners do not light.
2. The broil burner or bake burner flame goes
out before the oven heats to the desired
temperature.
3. Any of the burners continue to burn yellow.
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