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OPERATION
INSPECTING BURNERS
Check pilot flame pattern daily when in use and at least yearly by a qualified service agency.
PILOT FLAME PATTERN
Fig. 26 shows a correct pilot flame pattern. Fig. 27 shows an incorrect pilot flame pattern. The incor-
rect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool, which
shuts the heater off. If pilot flame pattern is incorrect:
• turn heater off (see "To Turn Off Gas to Appliance" on page 19)
• see Troubleshooting pages 23 through 26.
Fig. 26 - Correct Pilot Flame Pattern
WARNING: If yellow tipping occurs, your heater could produce increased levels of carbon
monoxide. If burner flame pattern shows yellow tipping, follow instructions under BURNER FLAME
PATTERN, page 21.
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.
BURNER FLAME PATTERN
Fig. 28 shows a correct burner flame pattern. Fig. 29 shows an incorrect burner flame pattern with
lifting, and excessive flame height.
If burner flame is incorrect:
• turn heater off (see "To Turn Off Gas to Appliance", page 19).
• see Troubleshooting, pages 23 through 26.
Fig. 28 - Correct/Normal Flame Pattern
with short flames with Control Knob Set
to High Flame (5)
Fig. 27 - Incorrect Pilot Flame Pattern
Fig. 29 - Incorrect/Abnormal Flame Pat-
tern with tall flames with Control Knob
Set to High Flame (5)
21
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