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113048-01F
16
Figure 25 - Incorrect Pilot Flame Pattern
Figure 24 - Correct Pilot Flame Pattern
Thermocouple
Pilot Burner
Pilot
Burner
Thermocouple
Blue Flame
Yellow Flame
INSPECTING HEATER
Check pilot flame pattern and burner flame pat-
tern often.
PILOT FLAME PATTERN
Figure 24 shows a correct pilot flame pattern.
Figure 25 shows an incorrect pilot flame pattern.
The incorrect pilot flame is not touching the
thermocouple. This will cause the thermocouple
to cool. When the thermocouple cools, the heater
will shut down.
If pilot flame pattern is incorrect, as shown in
Figure 25
• turn heater off (see
To Turn Off Gas to Appli-
ance
, page 16)
• see
Troubleshooting
, page 18
Figure 26 - Correct Burner Flame Pattern
for Blue Flame Heaters
Yellow
Tipping
Figure 27 - Incorrect Burner Flame
Pattern for Blue Flame Heaters
1/2 Glass
Height
1/2 Glass
Height
Blue
Flame
BURNER FLAME PATTERN FOR
BLUE FLAME HEATERS
WARNING: If yellow tipping
occurs, your heater could pro-
duce increased levels of carbon
monoxide.
NOTICE: Do not mistake orange
flames with yellow tipping. Dirt
or other fine particles enter the
heater and burn causing brief
patches of orange flame.
Figure 26 shows a correct burner flame pattern.
Figure 27 shows an incorrect burner flame pattern.
The incorrect burner flame pattern shows yellow
tipping of the flame. It also shows the flame higher
than 1/2 the glass panel height.
If burner flame pattern is incorrect, as shown in
Figure 27
• turn heater off (see
To Turn Off Gas to Appli-
ance,
page 16)
• see
Troubleshooting
, page 18
Figure 28 - Correct Burner Flame Pattern
for Infrared Heaters
Figure 29 - Incorrect Burner Flame
Pattern for Infrared Heaters
BURNER FLAME PATTERN FOR
INFRARED HEATERS
Figure 28 shows a correct burner flame pattern. Fig-
ure 29 shows an incorrect burner flame pattern.
If burner flame pattern is incorrect, as shown in
Figure 29
• turn heater off (see
To Turn Off Gas to Appli-
ance,
page 16)
• see
Troubleshooting
, page 18
