Inspecting Burners; Cleaning And Maintenance - Comfort Glow CGD3018P Owner's Operation And Installation Manual

VENT-FREE PROPANE/LP GAS LOG HEATER
INSPECTING
BURNERS
Check pilot flame pattern and burner flame
patterns often.
PILOT FLAME PATTERN
Figure 35 shows a correct pilot flame pat-
tern. Figure 36 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.
If pilot flame pattern is incorrect, as shown
in Figure 36
• turn heater off (see To Turn Off Gas to
Appliance, page 18 [manually-controlled
models] or page 19 [thermostat-con-
trolled models])
• see Troubleshooting, pages 21 through 23
Thermocouple
Figure 35 - Correct Pilot Flame Pattern
Thermocouple
Figure 36 - Incorrect Pilot Flame Pattern
MAIN BURNER
Periodically inspect all burner flame holes
with the heater running. All slotted burner
flame holes should be open with yellow
flame present. All round burner flame holes
should be open with a small blue flame
present. Some burner flame holes may be-
come blocked by debris or rust, with no
flame present. If so, turn off heater and let
cool. Either remove blockage or replace
burner. Blocked burner flame holes will
create soot.
CLEANING AND
MAINTENANCE
WARNING: Turn off heater
and let cool before cleaning.
CAUTION: You must keep
control areas, burner, and circu-
lating air passageways of heater
Pilot Burner
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, pet hair, etc.
ODS/PILOT AND BURNER
• Use a vacuum cleaner or small, soft
bristled brush to clean.
LOGS
Pilot
Burner
• If you remove logs for cleaning, refer to
Installing Logs, pages 14 through 16, to
properly replace logs.
• Replace log(s) if broken or chipped
(dime-sized or larger).
BURNER PRIMARY AIR
HOLES
Air is drawn into the burner through the 8
holes in the brass fitting at the burner en-
trance. These holes may become blocked
with dust or lint. Periodically inspect these
holes for any blockage and clean if needed.
Blocked air holes will create soot.
MAIN BURNER
Periodically inspect all burner flame holes
with the heater running. All slotted burner
flame holes should be open with yellow
flame present. All round burner flame holes
should be open with a small blue flame
present. Some burner flame holes may be-
come blocked by debris or rust, with no
flame present. If so, turn off heater and let
cool. Either remove blockage or replace
burner. Blocked burner flame holes will
create soot.
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