Desa Tech CGF265NVA - Manual (Page 26)

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INSPECTING
BURNERS
Check pilot flame pattern and burner flame patterns often.
PILOT FLAME PATTERN
Figure 29 shows a correct pilot flame pattern. Figure 30 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 fireplace will shut down.
Thermocouple
Pilot Burner
Figure 29 - Correct Pilot
Flame Pattern
Pilot Burner
Thermocouple
Figure 30 - Incorrect Pilot
Flame Pattern
If pilot flame pattern is incorrect, as shown in Figure 29
• turn fireplace off (see To Turn Off Gas to Appliance, page 23 [Thermostat-
controlled models} or page 25 [Manually-controlled models])
• see Troubleshooting, pages 27 through 30
FRONT BURNER FLAME PATTERN
Figure 31 shows correct front burner flame pattern. Figure 32 shows incorrect front
burner flame pattern. The incorrect burner flame pattern shows yellow tipping at top of
blue flame.
WARNING ICON G 001
WARNING
If front burner flame pattern shows yellow tipping, your fireplace
could produce increased levels of carbon monoxide. Follow instruc-
tions at bottom of this page. Yellow flame on rear burner is normal.
NOTICE
Do not mistake orange flames with yellow tipping. Dirt or other
fine particles are burned by fireplace, causing brief patches of
orange flame.
If front burner flame pattern is incorrect, as shown in Figure 32
• turn fireplace off (see To Turn Off Gas to Appliance, page 23 [Thermostat-
controlled models} or page 25 [Manually-controlled models])
• see Troubleshooting, pages 27 through 30
Figure 32 - Incorrect Front Burner Flame Pattern
Figure 31 - Correct Front Burner Flame Pattern
Yellow
Tipping
At Top
of Blue
Flame
CORRECT FLAME PATTERN AT HIGH POSITION
INCORRECT FLAME PATTERN AT HIGH POSITION