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111826-03H
13
Figure 16 - Correct
Pilot Flame
Figure 17 - Incorrect
Pilot Flame
Figure 18 - Correct Burner Flame Pattern
Figure 19 - Incorrect Burner Flame
Pattern
INSPECTING bURNERS
Check pilot flame pattern and burner flame
patterns often.
PILOT FLAME PATTERN
Figure 16 shows a correct pilot flame pattern.
Figure 17 shows an incorrect pilot flame pat
-
tern. The incorrect pilot flame is not touching
thermocouple. When thermocouple cools,
heater will shut down.
If pilot flame pattern is incorrect, as shown
in Figure 17
• turn heater off (see
To Turn Off Gas to Ap-
pliance
, page 11 or 12)
• see
Troubleshooting
, page 14
Note:
Pilot flame on natural gas units will have
a slight curve, but flame should be blue and
have no yellow or orange color.
bURNER FLAME PATTERN
Figure 18 shows correct burner flame pat
-
tern.
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 19,
• turn appliance off (see
To Turn Off Gas to
Appliance
, page 11 or 12)
• see
Troubleshooting
, page 14
