Desa GVC35NA - Manual (Page 21)

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INSPECTING
PILOT AND
BURNER
FLAME
Check pilot flame pattern and burner flame pattern often.
PILOT FLAME PATTERN
Figure 14 shows a correct pilot flame pattern. Figure 15 shows an incorrect pilot
flame pattern. The incorrect pilot flame is not touching the thermocouple. This will
prevent the thermocouple from getting hot, causing the heater to shut down.
Figure 15 - Incorrect
Pilot Flame Pattern
If pilot flame pattern is incorrect, as shown in Figure 15
• turn heater off (see To Turn Off Gas to Appliance, page 20)
• contact a qualified service person
BURNER FLAME PATTERN
Note: To view burner flame, remove lower front access panel of heater. View burner
flame through oval viewing hole on combustion chamber.
Thermocouple
Figure 14 - Correct Pilot
Flame Pattern
Thermocouple
WARNING
If high yellow flame occurs, your heater could produce
increased levels of carbon monoxide. If burner flame is
incorrect, follow instructions on page 22.
NOTICE
Do not mistake orange flames with yellow flame. Dirt or
other fine dust particles enter the heater and burn
causing brief patches of orange flame.
Figure 16, page 22, shows a correct burner flame pattern. Figure 17, page 22,
shows two incorrect burner flame patterns. The two incorrect flame patterns show
high yellow flames and flames lifting off of burner.
Continued