Troubleshooting - Napoleon LA400RSIB Instructions Manual

12
Tube Burner: The burners are 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!
EN
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 beneath the control panel. To clean the inside
of the burner, it must be removed from the gas grill: Remove the screw that attaches the burner to the
back wall. Slide the burner back and upwards 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.
WARNING!
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.

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.
www.napoleongrills.com
Beware of Spiders.
When reinstalling the burner after cleaning it is
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.
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.)