Napoleon PRESTIGE 308RB

Questions and Answers

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Michael LevineNov 23, 2025
What to do if pilot will not light on Napoleon Grill?
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  Melissa MeltonNov 23, 2025
  If the pilot light on your Napoleon grill won't light, here are a few things to check: * Gas Supply: After turning the pilot knob to high, wait about 20-30 seconds while pressing the igniter to allow air to purge from the gas line. If using propane, make sure the cylinder is full. During initial setup or after refilling the tank, light one of the tube burners first to help gas reach the manifold valves more quickly. * Pilot Orifice: Clean the pilot orifice to remove any obstructions. * Electrode Wire: Ensure the electrode wire is securely connected or replace it if necessary. * Pilot Electrode: Clean the pilot electrode. * Pilot Flame Visibility: The pilot flame, especially on natural gas units, can be hard to see. Place your hand 1 inch above the grill surface over the pilot bu...
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Michael CollierAug 25, 2025
How to fix a Napoleon Grill burner that won't light with the igniter?
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  Francisco HillAug 26, 2025
  If the burner on your Napoleon Grill won't light with the igniter but lights with a match, first replace the battery with a heavy-duty 'AAA' battery, ensuring the positive terminal is up. Check that the electrode wire is firmly attached to the igniter terminal. If you have a one-spark system, use a one-spark igniter. Make sure the collector box is tight and the gap between the electrode and collector box is between 1/8 - 3/16", adjusting by bending the box if needed. Also, slightly close the air shutter.
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Dawn KleinAug 27, 2025
Why is my Napoleon Grill burner not lighting with the igniter?
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  kmorrisonAug 27, 2025
  If your Napoleon Grill burner won't light with the igniter but lights with a match, the cause may be a dead or incorrectly installed battery. Replace it with a heavy-duty 'AAA' battery, installing it with the positive terminal up. Also, check that the electrode wire is firmly pushed onto the terminal on the back of the igniter. Ensure you are using the correct replacement igniter (one spark systems must use a one spark igniter). Make sure that the collector box is tight, and the gap between the electrode end and the collector box is between 1/8 - 3/16", adjusting by bending the box if needed. Lifting flames on burner can also be the reason.
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Paul McguireAug 27, 2025
Why is there low heat or low flame on my Napoleon PRESTIGE 308RB Grill when the valve is turned to high?
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  Joyce GarciaAug 27, 2025
  The low heat or flame on your Napoleon Grill could be due to several reasons: * **For propane grills:** It may be due to an improper lighting procedure. Ensure you follow the lighting procedure carefully. All gas grill valves must be in the off position when the tank valve is turned on. Turn the tank on slowly to allow pressure to equalize. Refer to the lighting instructions for the correct procedure. * **For natural gas grills:** It may be an undersized supply line. The pipe must be sized according to the installation code. * **For both propane and natural gas grills:** It might be due to improper preheating. Preheat the grill with both main burners on high for 10 to 15 minutes.
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Emily RomeroAug 28, 2025
What to do if Napoleon Grill has low heat/low flame?
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  cthomasAug 28, 2025
  If your Napoleon grill has low heat or a low flame when the valve is turned to high, here's what you can do: * For propane grills: Ensure you're following the correct lighting procedure. All gas grill valves must be off when you turn on the tank valve. Turn the tank on slowly to allow the pressure to equalize. * For natural gas grills: Ensure the supply line is properly sized according to the installation code. * For both propane and natural gas grills: Preheat the grill with both main burners on high for 10 to 15 minutes.
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james24Sep 15, 2025
Why does my Napoleon PRESTIGE 308RB Grill have low heat or low flame?
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  Lisa GoodwinSep 16, 2025
  If your Napoleon Grill has low heat or a low flame when the valve is turned to high, it could be due to several reasons. For propane, ensure you are following the correct lighting procedure, making sure all gas grill valves are in the off position when the tank valve is turned on, and turn the tank on slowly to allow pressure to equalize. For natural gas, the supply line might be undersized and must be sized according to installation code. For both propane and natural gas, improper preheating could be the cause. Pre-heat the grill with both main burners on high for 10 to 15 minutes.
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riosangelaSep 13, 2025
Why does "paint" appear to be peeling inside the lid of my Napoleon PRESTIGE 308RB?
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  John MillerSep 13, 2025
  The "paint" peeling inside the lid or hood of your Napoleon Grill is not a defect but hardened grease that has dried into paint-like shards. Regular cleaning will prevent this. Refer to the cleaning instructions.
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mwilsonSep 14, 2025
What to do if Napoleon PRESTIGE 308RB Grill has excessive flare-ups or uneven heat?
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  Benjamin NelsonSep 14, 2025
  If your Napoleon Grill is experiencing excessive flare-ups or uneven heat, ensure the sear plates are installed correctly with the holes towards the front and the slots on the bottom. Pre-heat the grill with both main burners on high for 10 to 15 minutes. Regularly clean the sear plates and drip pan, and do not line the pan with aluminum foil. Excessive grease and ash build up on sear plates and in drip pan can cause this problem.
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wgonzalesSep 6, 2025
What to do if Burners will not cross light each other on Napoleon PRESTIGE 308RB Grill?
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  Cody PalmerSep 6, 2025
  If the burners on your Napoleon grill won't cross-light each other, it's likely due to plugged ports along the back of the burner. Clean the burner ports following the burner maintenance instructions.
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gomezamandaSep 3, 2025
Why do flames lift away from burner on Napoleon PRESTIGE 308RB?
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  markortegaSep 4, 2025
  If the flames are lifting away from the burner on your Napoleon grill, accompanied by the smell of gas, and you're having trouble lighting it, it's likely due to an improperly adjusted air shutter. A qualified gas installer needs to close the air shutter slightly according to the combustion air adjustment instructions.

Napoleon PRESTIGE 308RB Specifications

General

Fuel Type	Propane
Rotisserie Burner	No
Material	Stainless Steel
Dimensions	49.25" H x 49.5" W x 22.5" D
Cooking Area	425 sq. in.
BTU	12, 000 BTUs
BTU Output	12, 000 BTUs