Check And Adjust The Burners; Burner Flame Characteristics; Low Flame Adjustment - KitchenAid 740-0780 Installation Instructions And Use & Care Manual

The burners are tested and factory-set for most efficient operation.
However, variations in gas supply and other conditions may make minor
adjustments to air shutter or low flame setting necessary.
It is recommended that a qualified person make burner adjustments.
NOTE: The rotisserie burner cannot be adjusted.
Checking and adjusting the grill burner flames requires removing the
grates and flame tamers.

Burner Flame Characteristics

The flames of the grill burners and side burners (on some models) should
be blue and stable with no excessive noise or lifting (LP gas flames will
have a slightly yellow tip). A yellow flame indicates not enough air. If
flame is noisy or lifts away from the burner, there is too much air. Some
yellow tips on flames when the burner is set to HI setting are acceptable
as long as no carbon or soot deposits appear. The flames should be
approximately 1" (2.5 cm) high.
Check that burners are not blocked by dirt, debris, insect nests, etc., and
clean as necessary. If they are clean, adjust air shutters as needed.
IMPORTANT: Before adjusting air shutters, let burners cool
completely.
To Adjust:
1. Light grill using information in the "Outdoor Grill Use" section.
2. Observe flame to determine which burners need adjustment and how
the flame is acting.
3. Turn off the valve and wait until grill and burners cool completely.
4. Remove grill grates and flame tamers.
5. Remove the screw and clip that hold the burner in place. Remove
gas burner from the grill.
A
A. Clip
6. If flame is yellow (not enough air), turn air shutter adjustment screw
counterclockwise.

Check and Adjust the Burners

1" (2.5 cm)
If flame is noisy or lifts away from burner (too much air), turn air
shutter adjustment screw clockwise.
A
A. Air shutter adjustment screw
Adjustment should be made clockwise or counterclockwise from 1/
8" (3.2 mm) to 1/4" (6.4 mm).
7. Replace gas burner, flame tamers and grates.
8. Light grill using information in the "Outdoor Grill Use" section. See
"Burner Flame Characteristics."

Low Flame Adjustment

If flame goes out on the "LO" setting, the low flame setting must be
adjusted.
1. Turn off the valve and wait until grill and burners are cool.
2. Remove grill grates and flame tamers.
3. Light grill using information in the "Outdoor Grill Use" section.
4. Turn burner to its lowest setting and remove knob.
5. Hold valve stem with pliers and insert a small flat-blade screwdriver
into the shaft.
6. Watch the flame and slowly turn the screwdriver counterclockwise.
7. Adjust flame to minimum stable flame.
A
A. Valve stem
B. Small flat-blade screwdriver
C. Pliers
8. Replace the control knob and turn off the burner.
9. Repeat steps 3 through 8 for each burner if needed.
10. Replace the flame tamers and grates after the burners have cooled.
B
C
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