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19
200198-01A
INSPECTING BURNERS
IMPORTANT: Owner’s should check pilot flame pattern and burner flame pattern often.
Incorrect flame patterns indicate the need for cleaning (see Care and Maintenance,
page 20 or service.
WARNING: Only a qualified service person should service and
repair heater. This includes maintenance requiring replacement or
alteration of components.
PILOT FLAME PATTERN
Figure 19 shows a correct pilot flame pattern.
Figure 20 shows an incorrect pilot flame pat-
tern. The incorrect pilot flame is not touching
the thermocouple. This will cause the ther-
mocouple to cool, which shuts the heater off.
If pilot flame pattern is incorrect, as shown
in Figure 20
• turn heater off (see
To Turn Off Gas to Ap-
pliance
, page 18)
• see
Troubleshooting
pages 22 through 25.
WARNING: If yellow tipping
occurs, your heater could produce
increased levels of carbon mon-
oxide. If the burner flame pattern
shows yellow tipping, follow in-
structions at bottom of this page.
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.
Approx. 3"-6" Above Top of Logs
More Than 8" Above Top of Logs
Approx. 3"-6" Above Top of Logs
More Than 8" Above Top of Logs
Figure 21 - Correct Burner Flame Pattern
Figure 22 - Incorrect Burner Flame
Pattern
BURNER FLAME PATTERN
Figure 21 shows a correct burner flame pattern. Figure 22 shows an incorrect burner flame
pattern. If burner flame pattern is incorrect as shown in Figure 22:
• turn heater off (see
To Turn Off Gas to Appliance
, page 18).
• see
Troubleshooting
pages 22 through 25.
BURNER PRIMARY AIR HOLES
Air is drawn into the burner through the holes in the fitting at the entrance to the burner. These
holes may become blocked with dust or lint. Periodically inspect these holes for any blockage
and clean as necessary. Blocked air holes will create soot.
Figure 19 - Correct Pilot Flame Pattern
(Natural Gas shown)
Figure 20 - Incorrect Pilot Flame Pattern
(Natural Gas shown)
NG
3-3.5" WC
Natural Gas
Shown
LP
8-11" WC
NG
3-3.5" WC
Natural Gas
Shown
LP
8-11" WC
