Troubleshooting - Napoleon Ultra chef UD405RSB User Manual

Troubleshooting

Problem
Low heat / Low flame when valve
turned to high.
Excessive flare-ups/uneven heat.
Burners burn with yellow flame,
accompanied by the smell of gas.
Flames lift away from burner,
accompanied by the smell of
gas, and possibly difficulties in
lighting.
Burner will not light with the
igniter, but will light with a
match.
Humming regulator.
Burners will not cross light each
other.
"Paint" appears to be peeling
inside lid or hood.
Burner output on "high" setting
is too low. (Rumbling noise and
fluttering blue flame at burner
surface.)
Possible Causes
For propane - improper lighting
procedure.
For natural gas - undersized supply
line.
For both gases - improper
preheating.
Sear plates installed incorrectly.
Improper preheating.
Excessive grease and ash build on
sear plates and in drip pan.
Possible spider web or other
debris, or improper air shutter
adjustment.
Improper air shutter adjustment.
Dead battery / or installed
incorrectly.
Loose electrode wire or switch
terminal wires.
Wrong replacement igniter.
Improper gap at electrode tip.
Lifting flames on burner.
Normal occurrence on hot days.
Plugged ports along back of
burner.
Grease build-up on inside
surfaces.
Lack of gas.
Supply hose is pinched.
Dirty or clogged orifice.
Spider webs or other matter in
venturi tube.
Propane regulator in "low flow"
state.
Solution
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.
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.
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.)
Close air shutter slightly according to combustion air
adjustment instructions. (This must be done by a qualified gas
installer.)
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"
(3mm-5mm). The gap can be adjusted by bending the box in
or out.
Close air shutter slightly - see previous problem.
This is not a defect. It is caused by internal vibrations in the
regulator and does not affect the performance or safety of the
gas grill. Humming regulators will not be replaced.
Clean burner ports. See burner maintenance instructions.
This is not a defect. The finish on the lid and hood is porcelain,
and will not peel. The peeling is caused by hardened grease,
which dries into paint-like shards, that flake off. Regular
cleaning will prevent this. See cleaning instructions.
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.
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