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Daniel FlynnSep 12, 2025
What to do if the infrared burner on my Napoleon PRO665-3 Grill flashes back?
- SSarah PorterSep 12, 2025
If the infrared burner on your Napoleon Grill flashes back (makes a loud “whoosh” sound, followed by a continuous blow-torch type sound and grows dim), turn the burner off and let it cool for at least two minutes. Relight it and burn on high for at least five minutes, or until the ceramic tiles are evenly glowing red. Ensure that no more than 75% of the grill surface is covered by objects or accessories. Turn the burner off and allow to cool for at least two minutes, then relight. Allow the burner to cool and inspect very closely for cracks. If any cracks are found, contact your authorized Napoleon dealer to order a replacement burner assembly.