www.desatech.com
113084-01A
18
CLEANING AND
MAINTENANCE
WARNING: Turn off heater
and let cool before cleaning.
CAUTION: You must keep
control areas, burner, and cir-
culating air passageways of
heater clean. Inspect these ar-
eas of heater before each use.
Have heater inspected yearly by
a qualified service person.
Heater may need more frequent
cleaning due to excessive lint
from carpeting, pet hair, bed-
ding material, 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 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 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 com-
pressed air no greater than 30 PSI. Your local com-
puter 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. Note: Removing the rear
panel (Figure 5, page 8) and top grate(s) of your
stove will make cleaning easier.
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 27).
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 in-
jector 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
two inches from where the pilot flame comes out
of the pilot assembly (see Figure 28). With the
unit off, lightly blow air through the air inlet hole.
You may blow through a drinking straw if com-
pressed air is not available.
Burner Tube
Pilot
Assembly
Pilot Air
Inlet Hole
Ports/Slots
Figure 28 - Pilot Inlet Air Hole
Figure 27 - Injector Holder On Outlet
Burner Tube
Burner Tube
Injector
Holder
Primary Air
Inlet Holes
