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Page 11R-2688
MAIN BURNER FLAME CHARACTERISTICS
There will be a short blue inner flame with a much larger lighter
blue secondary flame. The burner flame may have a small yellow
tip when hot. Dust in the combustion air will produce an orange
or red flame. Do not mistake the orange or red flame for an
improper yellow flame.
On Propane gas, if a whistling noise (resonation) occurs screw
the orifice fitting toward the main burner in order to reduce the
amount of primary air. The reduction in primary air will soften the
main burner flame and will eliminate the whistling noise
(resonation).
On Propane or Natural gas, if a yellow flame occurs screw the
orifice fitting away from the main burner in order to increase the
amount of primary air. The increase in primary air will sharpen
the main burner flame and will eliminate the yellow flame.
After use, cleaning of the main burner may be required for the
proper flame. The main burner may be cleaned by forcing water
into the ports and the throat of the burner. The burner should be
blown dry or heated to remove all water before replacing. To
remove main burner, see Appliance Maintenance.
Figure 10
PILOT FLAME CHARACTERISTICS
The correct flame will be blue and will extend beyond the
thermocouple. The flame will surround the thermocouple just
below the tip. A slight yellow flame may occur where the pilot
flame and main burner flame meet.
Figure 11
Oxygen Depletion Sensor Pilot (Figure 12)
If necessary, clean the Oxygen Depletion Sensor as follows:
1. Remove pilot shield which is attached to glass frame.
2. When large yellow tip flames are present, clean the ODS
pilot by loosening nut B from the pilot tubing. When this
procedure is required, grasp nut A with an open wrench.
3. Blow air pressure through the holes. This will blow out
foreign materials such as dust. Tighten nut B also by grasping
nut A.
Figure 12
Warning:
Never use needles, wires, or similar cylindrical objects to
clean the pilot to avoid damaging the calibrated ruby that
controls the gas flow.