Desa CGCFTN - Manual (Page 20)

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Thermocouple
Pilot Burner
Figure 27 - Correct Pilot Flame Pattern
(Propane/LP Shown)
Figure 28 - Incorrect Pilot Flame Pattern
(Propane/LP Shown)
Thermocouple
Pilot Burner
INSPECTING BURNER
Check pilot flame pattern and burner flame pat-
tern often.
PILOT FLAME PATTERN
Figure 27 shows a correct pilot flame pattern.
Figure 28 shows an incorrect pilot flame pattern.
The incorrect pilot flame is not properly heating the
thermocouple. This will cause the thermocouple to
cool. When the thermocouple cools, the fireplace
will shut down.
If pilot flame pattern is incorrect, as shown in
Figure 28
• turn fireplace off (see To Turn Off Gas to Ap-
pliance, page 19)
• see Troubleshooting, page 22
Note:
The pilot flame on natural gas units will
have a slight curve, but flame should be blue and
have no yellow or orange color.
Figure 29 - Correct Burner Flame Pattern
Figure 30 - Incorrect Burner Flame
Pattern
BURNER FLAME PATTERN
Figure 29 shows a correct burner flame pattern.
Figure 30 shows an incorrect burner flame pattern.
The incorrect burner flame pattern shows sporadic,
irregular flame tipping. The flame should not be
dark or have an orange/reddish tinge.
Note:
When using the fireplace the first time, the
flame will be orange for approximately one hour
until the log cures.
If burner flame pattern is incorrect, as shown in
Figure 30
• turn fireplace off (see To Turn Off Gas to Ap-
pliance, page 19)
• see Troubleshooting, page 22
CLEANING AND
MAINTENANCE
WARNING: Turn off fireplace
and let cool before cleaning.
CAUTION: You must keep
control areas, burner and cir-
culating air passageways of
fireplace clean. Inspect these
areas of fireplace before each
use. Have fireplace inspected
yearly by a qualified service
person. Fireplace may need
more frequent cleaning due to
excessive lint from carpeting,
bedding material, pet hair, etc.
WARNING: Failure to keep
the primary air opening(s) of
the burner(s) clean may result in
sooting and property damage.
BURNER INJECTOR HOLDER AND
PILOT AIR INLET HOLE
The primary air inlet holes allow the proper amount
of air to mix with the gas. This provides a clean
burning flame. Keep these holes clear of dust, dirt,
lint and pet hair. Clean these air inlet holes prior to
each heating season. Blocked air holes will create
soot. We recommend that you clean the unit every
three months during operation and have heater
inspected yearly by a qualified service person.