Ilve Incorrect Air-Gas Mixture / Burner Adjustment

Gas burner ignites but flame is yellow, noisy, or lifting off the burner

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Incorrectly adjusted air shutter, Debris in burner venturi, Wrong gas type or orifice (LPG vs natural gas), Excessive gas pressure

How to Fix / Troubleshooting

Safety: Turn off gas and power before adjusting air shutters. Work in a well-ventilated area.

  • Visual inspection: Remove burner caps and heads. Check for debris, spider webs, or grease in the venturi openings and clean thoroughly.
  • Check gas type: Confirm the range is configured for your gas type (natural gas or LPG) and that the correct Ilve conversion kit/orifices are installed.
  • Adjust air shutter: Locate the air shutter on the burner tube (under the cooktop). Loosen the screw and adjust the opening: more air for yellow flames, less air if flames are lifting or noisy. Retighten screw and test.
  • Professional check: If flames remain unstable, have a gas technician verify supply pressure and orifice sizing.
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Repair Difficulty

Medium 3/5

Required Part

Burner Tube / Air Shutter Assembly
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