Napoleon PRESTIGE 308 Manual page 12

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Burner: The burner is made from heavy wall 304 stainless steel, but extreme heat and a corrosive environment
can cause surface corrosion to occur. This can be removed with a brass wire brush.
CAUTION!
Spiders and insects are attracted to the smell of propane and natural gas. The burner is equipped with an insect
screen on the air shutter, which reduces the likelihood of insects building nests inside the burner but does not
entirely eliminate the problem. A nest or web can cause the burner to burn with a soft yellow or orange flame
or cause a fire (flashback) at the air shutter underneath the control panel. To clean the inside of the burner,
it must be removed from the gas grill: Remove the screw (s) that attaches the burner to the back wall. Slide
the burner back and up wards to remove. Cleaning: Use a flexible venturi tube brush to clean the inside of the
burner. Shake any loose debris from the burner through the gas inlet. Check the burner ports and valve orifices
for blockages. Burner ports can close over time due to cooking debris and corrosion, use an opened paperclip
or the supplied port maintenance bit to clean them. Drill out blocked ports using this drill bit in a small cordless
drill. The ports are easier to clean if the burner is removed from the grill, but it can also be done with the burner
installed. Do not flex the drill bit when drilling the ports, as this will cause the drill bit to break. This drill is for
burner ports only, not for the brass orifices (jets) which regulate the flow into the burner. Take care not to enlarge
the holes. Ensure the insect screen is clean, tight, and free of any lint or other debris.
Reinstallation: Reverse the procedure to reinstall the burner. Check that the valve enters the burner when
installing. Replace sear plate mount and / or tighten screws to complete reinstallation.
WARNING!
important that the valve/orifice enters the burner tube before lighting your
gas grill. If the valve is not inside the burner tube a fire or explosion could
occur.
WARNING!
exist, do not use the gas grill. Have the part replaced by your Napoleon Gas Grill dealer or qualified gas
installer.
Aluminum Castings: Clean castings periodically with warm soapy water. Aluminum will not rust, but high
temperatures and weathering can cause oxidation to occur on aluminum surfaces. This appears as white spots
on the castings. To refinish these areas, clean first and sand lightly with fine sandpaper. Wipe the surface to
remove any residue and paint with high temperature barbecue paint. Protect surrounding areas from over-spray.
Follow the manufacture's directions for curing.
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Beware of Spiders.
When reinstalling the burner after cleaning it is very
Hose: Check for abrasions, melting, cuts, and cracks in the hose. If any of these conditions