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CLEANING AND
MAINTENANCE
WARNING: Turn off heater and let cool before
cleaning.
CAUTION: You must keep control areas, burner,
and circulating air passageways of heater clean. In-
spect these areas of heater before each use. Have
heater inspected yearly by a qualified service person.
Heater may need more frequent cleaning due to exces-
sive 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 soot-
ing 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 create soot. We recommend
that you clean the unit every three months during operation and have
heater inspected 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 in rear burner
for dust and dirt (see Figure 36).
3. Blow air through the holes in the burner.
4. 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.
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 37). 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.
For more information, visit www.desatech.com
For more information, visit www.desatech.com
111640-01B
CLEANING AND MAINTENANCE
Cleaning Burner Injector Holder and Pilot Air Inlet Hole
Injector
Holder
Figure 36 - Injector Holder On Outlet Burner Tube
Pilot Air
Inlet Hole
Figure 37 - Pilot Inlet Air Hole
LOGS
• If you remove logs for cleaning, refer to Installing Logs, pages
14 and 15, to properly replace 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 become 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.
Logs
Main Burner
Primary Air
Inlet Holes
Burner Tube
Holes in Burner
Pilot
Assembly
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