Astria.us.com
126810-01B
20
INSPECTING BURNERS
Figure 21 - Incorrect Pilot Flame Pattern
(Your Pilot May Differ from Pilots Shown)
Figure 20 - Correct Pilot Flame Pattern
(Your Pilot May Differ from Pilots Shown)
If burner fl ame pattern is incorrect, as shown
in
Figure 23
• turn appliance off (see
To Turn Off Gas to
Appliance,
Page 18
• see
Troubleshooting
,
Page 22
Pilot Burner
Thermocouple
Thermocouple
Pilot Burner
Thermocouple
Thermocouple
Figure 22 - Correct Burner Flame Pattern
Figure 23 - Incorrect Burner Flame
Pattern
Yellow Flames
with Orange
Streaks
Dark Orange
Flames
Check pilot fl ame pattern and burner fl ame
patterns often.
PILOT FLAME PATTERN
Figure 20
shows a correct pilot fl ame pattern.
Figure 21
shows an incorrect pilot fl ame pat-
tern. The incorrect pilot fl ame is not touching
the thermocouple. When the thermocouple
cools, the heater will shut down.
If pilot fl ame pattern is incorrect, as shown
in
Figure 21
• turn heater off
(see To Turn Off Gas to Ap-
pliance, above or Page 18)
• see
Troubleshooting
,
Page 22
NOTE: The pilot fl ame on natural gas units will
have a slight curve, but fl ame should be blue
and have no yellow or orange colo
r.
NOTICE: Do not mistake orange
fl ames with yellow tipping. Dirt
or other fi ne particles are burned
by heater, causing brief patches
of orange fl ame.
BURNER FLAME PATTERN
Figure 22
shows correct burner fl ame pattern.
f i r e - p a r t s . c o m
