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INSPECTING
BURNER
Check pilot flame pattern and burner flame
pattern often.
PILOT FLAME PATTERN
Figure 18 shows a correct pilot flame pat-
tern. Figure 19 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.
Thermocouple
GOOD PILOT/LP
Figure 18 - Correct Pilot Flame Pattern
Thermocouple
BAD PILOT/LP
Figure 19 - Incorrect Pilot Flame Pattern
If pilot flame pattern is incorrect, as shown
in Figure 19
• turn heater off (see To Turn Off Gas
to Appliance, page 10)
• see Troubleshooting, pages 12
through 14
102393
BURNER FLAME PATTERN
Figure 20 shows a correct burner flame
pattern. Figure 21 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.
WARNING: If yellow tipping
occurs, your heater could pro-
duce increased levels of carbon
monoxide. If burner flame pat-
tern shows yellow tipping, follow
instructions at bottom of this
Pilot Burner
page.
NOTICE: Do not mistake orange
flames with yellow tipping. Dust
or other fine particles enter the
GRH/OV 007
heater and burn causing brief
patches of orange flame.
Pilot Burner
CORRECT FLAME PATTERN
GRH/OV 008
AT HIGH POSITION
Figure 20 - Correct Burner Flame Pattern
INCORRECT FLAME PATTERN
AT HIGH POSITION
Figure 21 - Incorrect Burner Flame Pattern
If burner flame pattern is incorrect, as shown
in Figure 21
• turn heater off (see To Turn Off Gas
to Appliance, page 10)
• see Troubleshooting, pages 12
through 14
OWNER'S MANUAL
CLEANING AND
MAINTENANCE
ODS/PILOT AND BURNER
ORIFICE
CABINET
Air Passageways
1/2 GLASS HEIGHT
Exterior
Yellow Tipping
1/2 GLASS HEIGHT
11
WARNING: Turn off heater
and let cool before cleaning.
CAUTION: You must keep
control areas, burner, and circu-
lating air passageways of heater
clean. Inspect these areas of
heater before each use. Have
heater inspected yearly by a quali-
fied service person. Heater may
need more frequent cleaning due
to excessive lint from carpeting,
bedding material, etc.
• Use a vacuum cleaner, pressurized
air, or small, soft bristled brush to
clean.
• Use a vacuum cleaner or pressurized
air to clean.
• Use a soft cloth dampened with a
mild soap and water mixture. Wipe
the cabinet to remove dust.
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