Desa FDCFRN - Manual (Page 27)

www.desatech.com 111244-01C 27
INSPECTING BURNERS
Check pilot flame pattern and burner flame pat-
terns often.
PILOT FLAME PATTERN
Figure 46 shows a correct pilot flame pattern. Fig-
ure 47 shows an incorrect pilot flame pattern. The
incorrect pilot flame is not touching the thermo-
couple. 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 Fig-
ure 47
• turn fireplace off (see To Turn Off Gas to Appli-
ance, page 22 for Thermostat-Controlled Models
or page 24 for Remote-Ready Models)
• see Troubleshooting, pages 29 through 32
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 46 - Correct Pilot Flame Pattern
(Propane/LP Remote-Ready Shown)
Pilot Burner
Thermocouple
Figure 47 - Incorrect Pilot Flame Pattern
(Propane/LP Remote-Ready Shown)
Pilot Burner
Thermocouple
BURNER FLAME PATTERN
Figure 48 shows a correct burner flame pattern.
Figure 49 shows an incorrect burner flame pat-
tern. 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 49
• turn fireplace off (see To Turn Off Gas to Appli-
ance, page 22 for Thermostat-Controlled Models
or page 24 for Remote-Ready Models)
• see Troubleshooting, pages 29 through 32
Figure 48 - Correct Burner Flame Pattern
Figure 49 - Incorrect Burner Flame
Pattern
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 fire-
place clean. Inspect these areas
of fireplace before each use.
Have fireplace inspected yearly
by a qualified service person.
Fireplace may need more fre-
quent cleaning due to exces-
sive lint from carpeting, pet hair,
bedding material, etc.
WARNING: Failure to keep
the primary air opening(s) of the
burner(s) clean may result in
sooting and property damage.
CLEANING 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