Maintenance Instructions, Troubleshooting

MAINTENANCE INSTRUCTIONS

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.

COMBUSTION AIR ADJUSTMENT - (This must be done by a qualified gas installer.) The air shutter is factory set and should not have to be adjusted under normal conditions. However, some extreme field conditions may exist that require adjustment. When the air shutter is adjusted correctly, the flames will be dark blue with light blue tips, and occasional yellow tips.

BURNER

BURNER PORT

LIGHT BLUE

YELLOW TIPPING

DARK BLUE

APPROXIMATELY

1/2"

If the burner is getting too little air, the flames will be lazy yellow, and possibly produce soot. If the burner is getting too much air, the flames will be lifting erratically from the burner and may cause difficulties when lighting.

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 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 2 screws located above the burner to the left and right of the centre of

the burner. 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, 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 main burners on high for 10 to 15 minutes.
8		preheating.

U405 specifications

The Napoleon Grills U405 is a strikingly powerful and versatile outdoor cooking appliance that stands as a testament to engineering excellence and culinary innovation. Designed for both avid grillers and those who casually enjoy barbecue gatherings, this grill offers numerous features to enhance the outdoor cooking experience.

At its core, the U405 is built with high-quality materials, including a durable stainless steel body that provides not only longevity but also an elegant look that complements any patio or outdoor kitchen. This grill is equipped with four main burners that deliver a collective output of 48,000 BTUs, ensuring that heat distribution is even and consistent across the grilling surface. With a total cooking area of 665 square inches, there's ample space to cook for large gatherings or intimate family meals.

One of the standout features of the U405 is its technologically advanced infrared rear burner. This allows users to create evenly cooked, juicy rotisserie dishes, which is a significant step up from traditional grilling. The rotisserie also comes with a stainless steel skewer and a heavy-duty motor, making it easier than ever to prepare succulent roasts and poultry.

Moreover, the U405 integrates Napoleon’s signature Wave cooking grid that not only provides a great sear but also helps to trap drippings, resulting in flavorful meals. The grill also features an innovative LED night light that illuminates the control knobs, allowing for safe and convenient grilling even after the sun sets.

Another key characteristic is the integrated smoker tray, designed to infuse grilled dishes with rich, smoky flavor. This feature is perfect for those who love barbecue, as it allows for the use of wood chips that give an exceptional taste to meats, vegetables, and more.

For added convenience, the U405 includes easy-to-clean surfaces and a high-quality grease tray that collects drippings and prevents flare-ups. Coupled with a sturdy foldable side shelf for extra preparation space, this grill meets the needs of any outdoor chef.

In summary, the Napoleon Grills U405 combines luxury with functionality, offering innovative features and advanced technologies that elevate the outdoor cooking experience, ensuring every meal is memorable. Whether you're grilling for friends, family, or just for yourself, this grill delivers excellence in every bite.