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114744-01B 21
CLEANING AND
MAINTENANCE
WARNING: Turn off heater
and let cool before cleaning.
CAUTION: You must keep
control areas, burner and circu-
lating air passageways of heater
clean. Inspect these areas of
heater before each use. Have
heater inspected yearly by a qual-
ified service person. Heater may
need more frequent cleaning due
to excessive lint from carpeting,
pet hair, bedding material, etc.
WARNING: Failure to keep
the primary air openings of the
burner clean may result in soot
-
ing and property damage.
BURNER INJECTOR HOLDER AND
PILOT AIR INLET HOLE
The primary air inlet openings 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 openings
prior to each heating season. Blocked air openings 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. 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
opening on injector holder for dust and dirt
(see Figure 28).
3. Blow air through the ports/slots and holes in
the burner.
Figure 28 - Injector Holder On Outlet
Burner Tube
Burner
Tube
Injector
Holder
Injector
Primary Air
Inlet Opening
(At bottom)
Ports
Slots
Figure 29 - Pilot Inlet Air Hole (Your pilot
may vary from pilots shown)
Pilot Assembly
Pilot Air
Inlet Hole
Pilot Assembly
Pilot Air
Inlet Hole
Natural
Propane/LP
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 opening 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
two inches from where the pilot flame comes out
of the pilot assembly (see Figure 29). With the unit
off, lightly blow air through the air inlet hole in the
same direction as gas flow. You may blow through a
drinking straw if compressed air is not available.