Maintenance Instructions; Troubleshooting - Napoleon PRESTIGE 308 Manual

MAINTENANCE INSTRUCTIONS

It is recommended that this gas grill be thoroughly inspected and serviced annually by a quali-
fied service person.
Turn off the gas at the source and disconnect unit before servicing. Maintenance should only be
done when the grill is cool, to avoid the possibility of burns. A leak test must be performed annually,
and whenever any component of the gas train is replaced.
HOSE -
Check for abrasion, melting, cuts and cracks. If any of these conditions exist, do not use gas grill. Have part
replaced by your gas grill dealer, or qualified gas installer.
BURNER -
The burner is made from heavy wall 304 stainless steel, but due to the extreme heat and corrosive
environment, surface corrosion will occur. Use a brass wire brush to remove surface corrosion. Clean any blocked
ports using an opened paper clip. Do not enlarge the burner ports. Spiders and insects are
attracted to the smell of gas. The burner is equipped with an insect screen on the air shutter,
which will reduce the likelihood of insects building nests inside the burner, but does not entirely
eliminate the problem. The nest or web will 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) located either in the center of the burner on 308 models, or above the burner
to the left and right of the centre of the burner on 450 models. Lift back of burner
upwards to remove. Use a flexible venturi tube cleaning brush to clean out the inside
of the burner. Shake any loose debris out of the burner, through the gas inlet. En-
sure that the insect screen is clean, tight, and free of any lint or other debris. Check
also that the valve orifices are clean. Do not enlarge the orifices. Re-install the burner.
Check that the valve enters the burner when installing. Replace burner cover and mounting screws to complete installa-
tion.
ALUMINUM CASTINGS -
high temperatures and weathering, oxidation can occur on aluminum surfaces. This will appear as white spots on the
castings. To refinish the castings, clean them and sand lightly with fine sandpaper. Wipe surface to remove any
residue, and paint with high temperature barbecue paint. Protect surrounding areas from over-spray. Follow curing
directions found on the can.

TROUBLESHOOTING

Problem
Low heat / Low flame when
valve turned to high.
8
Clean castings periodically with warm soapy water. Aluminum will not rust, but due to
Possible Causes
For propane - improper lighting
procedure.
For natural gas - undersized
supply line.
For both gases - improper pre-
heating.
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.
Pre-heat grill with both main burners on high for 10 to 15
minutes.
Screw