Filter
Top Products
www.desatech.com
108382-01G20
Injector Holder
(May Be Brass
or Aluminum
Depending on
Model)
Primary Air Inlet
Holes (Shape of Holes
May Vary by Model)
INSPECTING bURNERS
Continued
Air is drawn into the burner through the holes in
the tting 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.
Periodically inspect all burner ame holes with the
heater running. All slotted burner ame holes should
be open with yellow ame present. All round burner
ame holes should be open with a small blue ame
present. Some burner ame holes may become
blocked by debris or rust, with no ame present. If
so, turn off heater and let cool. Remove blockage,
blocked burner ame holes will create soot.
CLEANING AND
MAINTENANCE
WARNING: Turn off heater
-
-
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 qualied
service person.
Figure 32 - Injector Holder On Outlet
Burner Tube
Burner
Tube
Figure 33 - Pilot Inlet Air Hole
Burner
Tube
Pilot
Assembly
Pilot Air
Inlet Hole
Ports/Slots
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 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 32).
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.