Thermador PROFESSIONAL PRO GRAND PRD364JDGC Instructions D'installation page 28

Repeat these Ignition and Flame Test procedures 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.
®
Call THERMADOR if:
1. Any of the burners do not light.
2. Any of the burners continue to burn yellow.
Installation Instructions
Figure 37: Flame Characteristics
English 27