Napoleon Grills PRESTIGE 500 - Manuel (Page 14)

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Protection Of Infrared Burners: The infrared burners of your grill are designed to provide a long service life,
though care must taken to prevent cracking of their ceramic surfaces. Fractures will cause the burners to
malfunction. The following provides a few of the causes of cracks and the steps you can take to avoid them.
Damage caused by failure to follow these steps is not covered by your grill warranty.
1. Impact with hard objects - Never allow hard objects to strike the ceramic. Take care when inserting or removing
cooking grates and accessories into or from the grill.
2. Contact with water or other liquids - Cold liquids contacting the hot ceramic surfaces can cause them to
break. Never throw water into the grill to douse a flame. If the ceramic or interior of a burner becomes wet
while not in use, later operation of the burner can create steam, which can produce sufficient pressure to crack
the ceramic. Repeated soaking of the ceramic can also cause it to swell and expand. This expansion causes
undue pressure on the ceramic that can cause it to crack and crumble.
i) Never throw water into the grill to control flare-ups.
ii) Do not attempt to operate the infrared burners in open air while raining.
iii) If you find standing water in your grill (because of exposure to rainfall, sprinklers, etc.), inspect the
ceramic for evidence of possible watersoaking. If the ceramic appears to be wet, remove the burner from the
grill. Turn it upside down to drain the excess water and bring indoors to dry thoroughly.
3. Impaired ventilation of hot air from the grill - For the burners to function properly, hot air must have a way
to escape the grill. If the hot air is not allowed to escape, the burners can become deprived of oxygen causing
them to back-flash. If this occurs repeatedly, the ceramic could crack. Never cover more than 75% of the cooking
surface with solid metal (i.e., griddle or large pan).
4. Incorrect cleaning - Do not clean the ceramic tile with a wire brush. If debris is collecting on your burner,
light the burner and operate on high for 5 minutes with the lid open, allowing debris to burn off.
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!
Beware of Spiders.
Spiders and insects are attracted to the smell of propane and natural gas. The burner is equipped with an in-
sect 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 pa-
perclip 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.
REPLACEMENT SCREEN N565-0002
WARNING!
When reinstalling the burner after cleaning it is very
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.