Step 10: Burner Test; Test Rangetop Burners - Thermador PROFESSIONAL PRO HARMONY PRD305PH Manuel D'installation

Step 10: Burner Test

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 manual gas shut-off valve to the open
position.
NOTICE: All oven knobs and selectors must be set to OFF
before powering up the range. To prevent unintended
operation at power up, please set all oven knobs to OFF.
To ensure customer safety in the event of power failure, the
unit will display an error message upon reinstatement of
power unless all oven knobs are set to OFF. Set all oven
knobs to OFF and reset the breaker to clear the message.

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 29 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 service.
Test Flame: Simmer Setting
Turn burner on to SIM. Verify that the flame completely
surrounds the burner. There should be a flame at each
burner port and there should be no air gap between the
flame and the burner. Fan each of the flames out and allow
to reignite to verify burner reignition. If any burners do not
carry over, call THERMADOR service.
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The XLO feature of some of the rangetop burners will
make the flame to cycle on and off when the knob is set to
the XLO range. This is normal operation.
Repeat the Ignition and Flame Test procedures, described
for each rangetop burner.
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.
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.
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Call THERMADOR service if:
1. Any of the burners do not light.
2. Any of the burners continue to burn yellow.
Figure 29: Flame Characteristics
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