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9113997-01B
It is necessary to periodically check the burner
orifice and burner venturi tube to make sure they
are clear of insects, nests or spider webs that may
accumulate over time. A clogged tube can lead
to a fire.
1. Allow heater to thoroughly cool before per
-
forming any maintenance.
2. Remove disposable 1 lb. (0.45 kg) cylinder
from heater or turn OFF gas supply at remote
cylinder valve, and disconnect hose from
heater.
3. Remove wire guard from front of heater by
gently bending to remove from holes in front
cover.
4. Remove (1) burner assembly retaining screw
from bottom of the heater.
5. Pull burner assembly from front of the
heater.
6. Inspect interior of casing assembly for ac
-
cumulation of dust, lint or spider webs. If
necessary, clean interior of casing assembly
with a vacuum cleaner or apply air pressure.
Do not damage any components within casing
assembly when you are cleaning.
7. Inspect and clean main burner orifice
(mounted to pilot bracket with jam nut) by
using a vacuum or apply air pressure at orifice
opening.
8. Inspect and clean pilot (mounted to bracket) by
using a vacuum or apply air pressure through
the air holes in the pilot (see Figure 4, page 8).
WARNING: Never use nee-
dles, wires, or similar cylindrical
objects to clean the pilot to avoid
damaging the calibrated ruby
that controls the gas flow.
9. Apply air pressure into ceramic tile of burner
assembly and the venturi tube (with cone on
end) to remove dust, lint or spider webs.
10. Make sure the burner tile assembly is com
-
pletely seated against the reflector.
11. Carefully slide burner assembly back into cas
-
ing assembly making sure to center reflector
flange with the casing opening and hold in
place while installing burner assembly screw
in the bottom of the heater.
12. Install wire guard by gently bending and in
-
serting into the four holes in the front cover.
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.
CLEANING AND
MAINTENANCE
Continued