Napoleon PRESTIGE II 450, Manual

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WARNING!
Hose: Check for abrasions, melting, cuts, and cracks in the hose. If any of these conditions
exist, do not use the gas grill. Have the part replaced by your Napoleon Gas Grill dealer or qualified gas
installer.
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.
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.
Troubleshooting
Problem Possible Causes Solution
Low heat / Low flame when
valve turned to high.
For propane - improper lighting
procedure.
For natural gas - undersized supply line.
For both gases - improper preheating.
Ensure lighting procedure is followed carefully. All gas
grill valves must be in the off position when the tank
valve is turned on. Turn tank on slowly to allow pressure
to equalize. See lighting instructions.
Pipe must be sized according to installation code.
Preheat grill with both main burners on high for 10 to
15 minutes.
Excessive flare-ups/uneven heat. Sear plates installed incorrectly.
Improper preheating.
Excessive grease and ash build on sear
plates and in drip pan.
Ensure sear plates are installed with the holes towards
the front and the slots on the bottom. See assembly
instructions.
Preheat grill with both main burners on high for 10 to
15 minutes.
Clean sear plates and drip pan regularly. Do not line pan
with aluminum foil. Refer to cleaning instructions.
Burners burn with yellow flame,
accompanied by the smell of
gas.
Possible spider web or other debris, or
improper air shutter adjustment.
Thoroughly clean burner by removing. See general
maintenance instructions. Open air shutter slightly
according to combustion air adjustment instructions.
(This must be done by a qualified gas installer.)
Flames lift away from burner,
accompanied by the smell of
gas, and possibly difficulties in
lighting.
Improper air shutter adjustment. Close air shutter slightly according to combustion air
adjustment instructions. (This must be done by a
qualified gas installer.)
Burner will not light with the
igniter, but will light with a
match. Dead battery / or installed incorrectly.
Loose electrode wire or switch terminal
wires.
Wrong replacement igniter.
Improper gap at electrode tip.
Lifting flames on burner.
Replace with heavy duty battery.
Check that electrode wire is firmly pushed onto the
terminal on the back of the igniter. Check that the
lead wires from the module to the ignition switch (if
equipped) are firmly pushed onto their respective
terminals.
One spark systems must use a one spark igniter.
Ensure that the collector box is tight and the gap
between the electrode end and the collector box is
between 1/8” - 3/16” (.125mm-.188mm). The gap can
be adjusted by bending the box in or out.
Close air shutter slightly - see previous problem.