www.desatech.com
113681-01A
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, bedding mate-
rial, pet hair, etc.
WARNING: Failure to keep
the primary air opening(s) of the
burner(s) clean may result in
sooting and property damage.
ODS/PILOT AND BURNER
• Use a vacuum cleaner, pressurized air, or small,
soft bristled brush to clean.
BURNER PILOT AIR INLET
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 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 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 for dust and dirt.
3. Blow air through the ports/slots and holes in
the burner.
4. Never insert objects into the pilot tube.
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 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. You may
blow through a drinking straw if compressed air
is not available.
CABINET
Air Passageways
• Use a vacuum cleaner or pressurized air to
clean.
Exterior
• Use a soft cloth dampened with a mild soap
and water mixture. Wipe the cabinet to remove
dust.
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burner 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, con-
tact your local natural or propane/LP gas supplier.
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’ tech-
nical service web site at
www.desatech.com.
Figure 28 - Pilot Air Inlet
(Actual Pilot May Vary from Illustration)
Pilot Assembly
Pilot Air Inlet
