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111826-02J 13
INSPECTING BURNERS
Check pilot ame pattern and burner ame pat-
terns often.
Figure 14 shows a correct pilot ame pattern.
Figure 15 shows an incorrect pilot ame pattern.
The incorrect pilot flame is not touching the
thermocouple. When the thermocouple cools, the
heater will shut down.
If pilot ame pattern is incorrect, as shown in
Figure 15
• turn heater off (see To Turn Off Gas to Appli-
ance, page 12)
• see Troubleshooting, page 15
Note: The pilot ame on natural gas units will
have a slight curve, but ame should be blue and
have no yellow or orange color.
Figure 15 - Incorrect Pilot Flame Pattern
(Your Pilot May Differ from Pilots Shown)
Figure 14 - Correct Pilot Flame Pattern
(Your Pilot May Differ from Pilots Shown)
Figure 16 shows correct burner ame pattern.
If burner ame pattern is incorrect, as shown in
Figure 17
• turn appliance off (see To Turn Off Gas to Ap-
pliance, page 12
• see Troubleshooting, page 15
Figure 16 - Correct Burner Flame Pattern
Figure 17 - Incorrect Burner Flame
Pattern
Pilot Burner
Thermocouple
Thermocouple
Pilot Burner
Thermocouple
Thermocouple
Yellow Flames
with Orange
Streaks
Dark Orange
Flames