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INSPECTING
BURNERS
Continued
BURNER FLAME PATTERN
Figure 29 shows a correct burner flame pat-
tern. Figure 30 shows an incorrect burner
flame pattern. If burner flame pattern is
incorrect,
• turn heater off (see To Turn Off Gas to
Appliance, page 15)
• see Troubleshooting, pages 18 through 20
Figure 29 - Correct Flame Pattern
Figure 30 - Incorrect Flame Pattern
BURNER PRIMARY AIR HOLES
Air is drawn into the burner through the
holes in the fitting at the burner entrance.
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.
Remove blockage. Blocked burner flame
holes will create soot.
108382
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
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.
CLEANING BURNER INJEC-
TOR HOLDER AND PILOT
AIR INLET HOLE
The primary air inlet holes allow the proper
amount of air to mix with the gas. This pro-
vides 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 recom-
mend that you clean the unit every three
months during operation and have heater in-
spected yearly by a qualified service person.
We also recommend that you keep the burner
tube and pilot assembly clean and free of dust
and dirt. To clean these parts we recommend
using compressed air no greater than 30 PSI.
Your local computer store, hardware store, or
home center may carry compressed air in a
can. You can use a vacuum cleaner in the
blow position. If using compressed air in a
can, please follow the directions on the can.
If you don't follow directions on the can, you
could damage the pilot assembly.
1.
Shut off the unit, including the pilot. Allow
the unit to cool for at least thirty minutes.
2. Inspect burner, pilot, and primary air
inlet holes on injector holder for dust
and dirt (see Figure 31).
3. Blow air through the ports/slots and
holes in the burner.
4.
Check the injector holder located at the
end of the burner tube again. Remove any
large particles of dust, dirt, lint, or pet hair
with a soft cloth or vacuum cleaner nozzle.
5. Blow air into the primary air holes on
the injector holder.
17
OWNER'S MANUAL
6.
In case any large clumps of dust have
now been pushed into the burner repeat
steps 3 and 4.
Clean the pilot assembly also. A yellow tip
on the pilot flame indicates dust and dirt in
the pilot assembly. There is a small pilot air
inlet hole about two inches from where the
pilot flame comes out of the pilot assembly
(see Figure 32). With the unit off, lightly
blow air through the air inlet hole. You may
blow through a drinking straw if compressed
air is not available.
Burner
Tube
Primary Air Inlet
Holes (Shape of
Holes May Vary
by Model)
Figure 31 - Injector Holder On Outlet
Burner Tube
Burner
Tube
Pilot
Assembly
Pilot Air
Inlet Hole
Figure 32 - Pilot Inlet Air Hole
LOGS
• If you remove logs for cleaning, refer to
Installing Logs, page 13, to properly re-
place logs.
• Replace log(s) if broken or chipped
(dime-sized or larger).
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.
Remove blockage. Blocked burner flame
holes will create soot.
For more information, visit www.desatech.com
Injector
Holder
(May Be
Brass or
Aluminum
Depending
on Model)
Ports/Slots
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