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Check pilot flame pattern and burner flame
patterns often.
PILOT FLAME PATTERN
Figure 20 shows a correct pilot flame pattern.
Figure 21 shows an incorrect pilot flame pat-
tern. The incorrect pilot flame is not touching
the thermocouple. When the thermocouple
cools, the heater will shut down.
If pilot flame pattern is incorrect, as shown
in Figure 21
• turn heater off (see To Turn Off Gas to Ap-
pliance, above or page 17)
• 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.
Pilot Burner
Thermocouple
Figure 20 - Correct Pilot Flame Pattern
(Your Pilot May Differ from Pilots Shown)
Pilot Burner
Thermocouple
Figure 21 - Incorrect Pilot Flame Pattern
(Your Pilot May Differ from Pilots Shown)
126857-01A
INSPECTING BURNERS
Thermocouple
Thermocouple
www.SuperiorFireplaces.US.com
BURNER FLAME PATTERN
Figure 22 shows correct burner flame pattern.
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 burner flame pattern is incorrect, as shown
in Figure 23
• turn appliance off (see To Turn Off Gas to
Appliance, page 17
• see Troubleshooting, page 21
Figure 22 - Correct Burner Flame Pattern
Figure 23 - Incorrect Burner Flame
Yellow Flames
with Orange
Streaks
Dark Orange
Flames
Pattern
19
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