Napoleon PRESTIGE II 750 User Manual page 13

Problem Possible Causes
Burner output on "high" Lack of gas.
setting is too low.
(Rumbling noise and Supply hose is pinched.
fluttering blue flame at
burner surface.) Dirty or clogged orifice.
Spider webs or other matter in
venturi tube.
Propane regulator in "low flow"
state.
Infrared burner (if Ceramic tiles overloaded with
equipped) flashes back grease drippings and build-up.
(during operation the Ports are clogged.
burner abruptly makes
a loud "whoosh" sound,
followed by a continuous Burner overheated due to
blow-torch type sound and inadequate ventilation (too much
grows dim.) grill surface covered by griddle
or pan.)
Cracked ceramic tile.
Leaking gasket surrounding the
ceramic tile, or a weld failure in
the burner housing.
Pilot will not light. Lack of gas.
(if equipped)
Obstruction in pilot orifice.
Electrode wire loose or off.
Dirty pilot electrode.
Pilot is actually lit.
Solution
Check gas level in propane cylinder.
Reposition supply hose as necessary.
Clean burner orifice.
Clean out venturi tube.
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.
Turn burner off and allow to cool for at least two
minutes. Relight burner and burn on high for at least
five minutes or until the ceramic tiles are evenly
glowing red.
Ensure that no more than 75% of the grill surface is
covered by objects or accessories. Turn burner off and
allow to cool for at least two minutes, then relight.
Allow burner to cool and inspect very closely for
cracks. If any cracks are found, contact your authorized
Napoleon dealer to order a replacement burner
assembly.
Contact your authorized Napoleon dealer for
instructions on ordering a replacement burner
assembly.
After turning pilot knob to high, wait approximately
20-30 seconds for air to purge the gas supply line
while pressing igniter. Fill propane cylinder. During
initial set-up or after tank has been refilled, it is best to
light one of the tube burners before lighting the pilot
burner. This enables the gas to reach the valves on the
manifold more quickly.
Clean pilot orifice.
Replace lead wire.
Clean pilot electrode.
The pilot flame, especially on natural gas units is very
difficult to see. Place your hand 1 in. (2.5 cm) above
grill surface over the pilot burner to feel for heat.
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