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125010-01A
19
Figure 25 - Correct Pilot Flame Pattern
Pilot Burner
Thermocouple
Figure 26 - Incorrect Pilot Flame Pattern
Thermocouple
Thermocouple
Thermocouple
Pilot Burner
TO TURN OFF GAS
TO APPLIANCE
1. Press in and turn control knob clockwise
to the HI position.
2. Turn the control knob clockwise
to
the PILOT position.
3. Press in control knob and turn clockwise
to the OFF position.
4. Close equipment shutoff valve (see
Figure 15), page 15.
Figure 27 - Correct Front Burner Flame
Pattern
Figure 28 - Incorrect Front Burner Flame
Pattern
Yellow Tipping
At Top of Blue
Flame
INSPECTING bURNERS
OPERATION
Continued
MANUAL LIGHTING
PROCEDURE
1. Follow steps 1 through 5 under
Lighting
Instructions
, page 18.
2. Press control knob and light pilot with
match.
3. Keep control knob pressed in for 30 sec-
onds after lighting pilot. After 30 seconds,
release control knob. Now follow step 8
under
Lighting Instructions
, page 18.
Check pilot flame pattern and burner flame
patterns often.
PILOT FLAME PATTERN
Figure 25 shows a correct pilot flame pattern.
Figure 26 shows an incorrect pilot flame pat
-
tern. The incorrect pilot flame is not touching
the thermocouple. This will cause the thermo-
couple to cool. When the thermocouple cools,
the heater will shut down.
If pilot flame pattern is incorrect, as shown
in Figure 26
• turn heater off (see
To Turn Off Gas to
Appliance
• see
Troubleshooting
, page 21
Note: The pilot flame on natural gas units will
have a slight curve, but flame should be blue
and have no yellow or orange color.
FRONT BURNER FLAME PATTERN
Figure 27 shows correct front burner flame
pattern. Figure 28 shows incorrect front burner
flame pattern. The incorrect burner flame pat
-
tern shows yellow tipping at top of blue flame.
WARNING: If yellow tipping
occurs, your heater could pro-
duce increased levels of carbon
monoxide. If front burner flame
pattern shows yellow tipping,
follow instructions at bottom of
this page. Yellow flame on rear
burner is normal.
NOTICE: Do not mistake orange
flames with yellow tipping. Dirt
or other fine particles are burned
by heater, causing brief patches
of orange flame.
If front burner flame pattern is incorrect, as
shown in Figure 28
• turn heater off (see
To Turn Off Gas to
Appliance
)
• see
Troubleshooting
, page 21
