CLEANING AND
MAINTENANCE
Continued
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.
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