Desa BLUE-FLAME A Operation And Installation Manual page 23

INSPECTING
BURNER
Continued
099569
If pilot flame pattern is incorrect, as shown in Figure 21
• turn heater off (see To Turn Off Gas to Appliance, page 19 [thermostat
models] or page 22 [non-thermostat model])
• see Troubleshooting, pages 24 through 27.
BURNER FLAME PATTERN
Figure 22 shows a correct burner flame pattern. Figure 23 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.
If yellow tipping occurs, your heater could produce increased
levels of carbon monoxide. If burner flame pattern shows yellow
tipping, follow instructions at bottom of this page.
Do not mistake orange flames with yellow tipping. Dirt or other fine
particles enter the heater and burn causing brief patches of orange
flame.
CORRECT FLAME PATTERN
Figure 22 - Correct Burner Flame Pattern
INCORRECT FLAME PATTERN
Figure 23 - Incorrect Burner Flame Pattern
If burner flame pattern is incorrect, as shown in Figure 23
• turn heater off (see To Turn Off Gas to Appliance, page 19 [thermostat
models] or page 22 [non-thermostat model])
• see Troubleshooting, pages 24 through 27
WARNING
WARNING ICON G 001
NOTICE
AT HIGH POSITION
AT HIGH POSITION
1/2 GLASS HEIGHT
Yellow
Tipping
1/2 GLASS HEIGHT
23