Napoleon Grills U405 TROUBLESHOOTING, MAINTENANCE INSTRUCTIONS

BURNER- The burner is made from heavy wall 304 stainless steel, but due to the extreme heat and corrosive environment, surface

corrosionwill occur. Usea brass wire brush to remove surface corrosion. Clean any blocked portsusing an opened paper clip. Do not

enlargethe burner ports. Spidersand insects are attracted to the smell of propane and natural gas. Theburner is equipped with an

insectscreen on the air shutter, which will reduce the likelihood of insects building nests inside

theburner, but does not entirely eliminate the problem. Thenest or web will cause the burner

toburn with a soft yellow or orange flame or cause a fire (flashback) at the air shutter

underneaththe control panel. Toclean the inside of the burner, it must be removed from the

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

theburner. Liftback of burner upwards to remove. Usea flexible venturi tube cleaning brush

toclean out the inside of the burner. Shakeany 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

alsothat the valve orifices are clean. Donot enlarge the orifices. Re-installthe burner. Check

thatthe valve enters the burner when installing. Replaceburner cover and mounting screws to

completeinstallation.

ALUMINUMCASTINGS - Clean castings periodically with warm soapy water. Aluminumwill not rust, but due to high temperatures and

weathering,oxidation can occur on aluminum surfaces. Thiswill appear as white spots on the castings. Torefinishthe castings, clean

themand sand lightly with fine sandpaper. Wipesurface to remove any residue, and paint with high temperature barbecue paint.

Protectsurrounding areas from over-spray. Followcuring directions found on the can.

TROUBLESHOOTINGMAINTENANCE INSTRUCTIONS

DARKBLUE

LIGHTBLUE

BURNER

BURNERPORT

Turnoff the gas at the source and disconnect unit before servicing. Maintenance should only be done when the grill is cool,

toavoid the possibility of burns. A leak test must be performed annually,and whenever any component of the gas train is

replaced.

COMBUSTIONAIR ADJUSTMENT - (This must be done by a qualified gas installer.) Theair shutter is factory set and should not

haveto be adjusted under normal conditions. However,some extreme field conditions may exist that require adjustment. Whenthe air

shutteris adjusted correctly, the flames will be dark blue with light blue tips, and occasional yellow tips.

YELLOWTIPPING

Ifthe burner is getting too little air, the flames will be lazy yellow, and possibly produce soot. Ifthe burner is getting too much air,the

flameswill be lifting erratically from the burner and may cause difficulties when lighting.

HOSE- Check for abrasion, melting, cuts and cracks. Ifany of these conditions exist, do not use gas grill. Havepart replaced by your

gasgrill dealer, or qualified gas installer.

APPROXIMATELY

1/2"

Lowheat / Low flame when

valveturned to high. Forpropane - improper lighting

procedure. Ensurelighting procedure is followed carefully. Allgas grill

valvesmust be in the off position when the tank valve is turned

on. Turn tank on slowly to allow pressure to equalize. See

lightinginstructions.

Fornatural gas - undersized

supplyline. Pipemust be sized according to installation code.

Forboth gases - improper

preheating. Pre-heatgrill with main burners on high for 10 to 15 minutes.