www.desatech.com 119508-01A20
Thermocouple
Pilot Burner
Figure 29 - Correct Pilot Flame Pattern
(Propane/LP Shown)
Figure 30 - Incorrect Pilot Flame Pattern
(Propane/LP Shown)
Thermocouple
Pilot Burner
INSPECTING bURNER
Check pilot ame pattern and burner ame pat-
tern often.
PILOT FLAME PATTERN
Figure 29 shows a correct pilot ame pattern.
Figure 30 shows an incorrect pilot ame pattern.
The incorrect pilot ame is not properly heating the
thermocouple. This will cause the thermocouple to
cool. When the thermocouple cools, the replace
will shut down.
If pilot ame pattern is incorrect, as shown in
Figure 30
• turn replace off (see To Turn Off Gas to Ap-
pliance, page 19)
• see Troubleshooting, page 22
Note: The pilot ame on natural gas units will
have a slight curve, but ame should be blue and
have no yellow or orange color.
Figure 31 - Correct Burner Flame Pattern
Figure 32 - Incorrect Burner Flame
Pattern
bURNER FLAME PATTERN
Figure 31 shows a correct burner ame pattern.
Figure 32 shows an incorrect burner ame pattern.
The incorrect burner ame pattern shows sporadic,
irregular ame tipping. The ame should not be
dark or have an orange/reddish tinge.
Note: When using the replace the rst time, the
ame will be orange for approximately one hour
until the log cures.
If burner ame pattern is incorrect, as shown in
Figure 32
• turn replace off (see To Turn Off Gas to Ap-
pliance, page 19)
• see Troubleshooting, page 22
CLEANING AND MAINTENANCE
WARNING: Turn off replace
and let cool before cleaning.
CAUTION: You must keep
control areas, burner and cir-
culating air passageways of
replace clean. Inspect these
areas of replace before each
use. Have replace inspected
yearly by a qualied service
person. F ireplace 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 ame. 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 qualied service person.