www.desatech.com
119347-01A
19
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 and lint. 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. If using com-
pressed 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 24).
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.
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 as-
sembly. There is a small pilot air inlet hole about
2" from where the pilot flame comes out of the
pilot assembly (see Figure 24). 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.
Figure 23 - Injector Holder On Outlet
Burner Tube
Burner Tube
Primary Air Inlet
Holes (Shape of
Holes May Vary by Model)
Injector Holder (May
Be Brass or Aluminum
Depending on Model)
Figure 24 - Pilot Inlet Air Hole
Burner
Tube
Ports/Slots
Pilot
Assembly
Pilot Air
Inlet Hole
LOG
• If you remove log for cleaning, refer to
Install-
ing Log,
page 16, to properly replace logs.
• Replace log(s) if broken or chipped (dime-sized
or larger).
BURNER PRIMARY AIR HOLES
Air is drawn into the burner through the 8 holes
in the brass fitting at the entrance to the burner.
These holes may become blocked with dust or lint.
Periodically inspect these holes for any blockage
and clean as necessary. 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 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.
cLEANING AND
MAINtENANcE
Continued
f i r e - p a r t s . c o m
