Napoleon Grills 450, PRESTIGE II 308 manual Troubleshooting, Problem, Possible Causes, Solution

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 propane and natural 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. Ensure that the insect screen is clean,Screw 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 installation.

ALUMINUM CASTINGS - Clean castings periodically with warm soapy water. Aluminum will not rust, but due to 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	Possible Causes	Solution
Low heat / Low flame when	For propane - improper lighting	Ensure lighting procedure is followed carefully. All gas grill
valve turned to high.	procedure.	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.
	For natural gas - undersized	Pipe must be sized according to installation code.
	supply line.
	For both gases - improper	Pre-heat grill with both main burners on high for 10 to 15
	preheating.	minutes.
Excessive flare-ups/uneven	Sear plates installed incorrectly.	Ensure sear plates are installed with the holes towards
heat.		the front, and the slots on the bottom. See assembly
		instructions.
	Improper pre-heating.	Pre-heat grill with both main burners on high for 10 to 15
		minutes.
	Excessive grease and ash build	Clean sear plates and drip pan regularly. Do not line pan
	up on sear plates and in drip	with aluminum foil. Refer to cleaning instructions.
	pan.
Burners burn with yellow	Possible spider web or other	Thoroughly clean burner by removing. See general
flame, accompanied by the	debris, or improper air shutter	maintenance instructions. Open air shutter slightly
smell of gas.	adjustment.	according to combustion air adjustment instructions.
Flames lift away from	Improper air shutter adjustment.	Close air shutter slightly according to combustion air
burner, accompanied by the		adjustment instructions.
smell of gas, and possibly
difficulties in lighting.			9