www.desatech.com
107068-01K
0
CLEANING AND
MAINTENANCE
Continued
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 25).
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.
Figure 25 - Injector Holder On Outlet
Burner Tube
Burner
Tube
Primary Air Inlet
Holes (Shape of
Holes May Vary
by Model)
Figure 26 - Pilot Inlet Air Hole
Burner
Tube
Injector Holder (May Be Brass or
Aluminum Depending on Model)
Pilot Air
Inlet Hole
Pilot
Assembly
Ports/Slots
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 26). 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.
LOGS
• If you remove logs for cleaning, refer to
Install-
ing Logs
, 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.
TECHNICAL SERVICE
You may have further questions about installation,
operation or troubleshooting. If so, contact DESA
Heating Products’ Technical Service Department
at 1-866-672-6040. When calling please have your
model and serial numbers of your heater ready.
You can also visit DESA Heating Products’ techni
-
cal service web site at
www.desatech.com
.
SERVICE HINTS
When Gas pressure Is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce specified heat
• propane/LP gas supply may be low
You may feel your gas pressure is too low. If
so, contact your local natural or propane/LP gas
supplier.
