Napoleon U405 User Manual

Also see for U405 CART: Brochure & specs Owner's manual

Contents

8BURNER - The burner is made from heavy wall 304 stainless steel, but due to the extreme heat and corrosive environment, surfacecorrosion will occur. Use a brass wire brush to remove surface corrosion. Clean any blocked ports using an opened paper clip. Do notenlarge the burner ports. Spiders and insects are attracted to the smell of propane and natural gas. The burner is equipped with aninsect screen on the air shutter, which will reduce the likelihood of insects building nests insidethe burner, but does not entirely eliminate the problem. The nest or web will cause the burnerto burn with a soft yellow or orange flame or cause a fire (flashback) at the air shutterunderneath the control panel. To clean the inside of the burner, it must be removed from thegas grill. Remove the 2 screws located above the burner to the left and right of the centre ofthe burner. Lift back of burner upwards to remove. Use a flexible venturi tube cleaning brushto clean out the inside of the burner. Shake any loose debris out of the burner, through the gasinlet. Ensure that the insect screen is clean, tight, and free of any lint or other debris. Checkalso that the valve orifices are clean. Do not enlarge the orifices. Re-install the burner. Checkthat the valve enters the burner when installing. Replace burner cover and mounting screws tocomplete installation.ALUMINUM CASTINGS - Clean castings periodically with warm soapy water. Aluminum will not rust, but due to high temperatures andweathering, oxidation can occur on aluminum surfaces. This will appear as white spots on the castings. To refinish the castings, cleanthem 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.TROUBLESHOOTINGMAINTENANCE INSTRUCTIONSDARK BLUELIGHT BLUEBURNERBURNER PORTTurn 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 isreplaced.COMBUSTION AIR ADJUSTMENT - (This must be done by a qualified gas installer.) The air shutter is factory set and should nothave to be adjusted under normal conditions. However, some extreme field conditions may exist that require adjustment. When the airshutter is adjusted correctly, the flames will be dark blue with light blue tips, and occasional yellow tips.YELLOW TIPPINGIf 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, theflames 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 yourgas grill dealer, or qualified gas installer.APPROXIMATELY1/2"Problem Possible Causes SolutionLow heat / Low flame whenvalve turned to high.For propane - improper lightingprocedure.Ensure lighting procedure is followed carefully. All gas grillvalves must be in the off position when the tank valve is turnedon. Turn tank on slowly to allow pressure to equalize. Seelighting instructions.For natural gas - undersizedsupply line.Pipe must be sized according to installation code.For both gases - improperpreheating.Pre-heat grill with main burners on high for 10 to 15 minutes.