Avanti Improper Gas-Air Mixture / Incomplete Combustion

Oven or cooktop flames are yellow and produce soot on Avanti gas range

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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

Clogged burner ports, Misadjusted air shutter, Wrong gas type (natural vs LP) or missing conversion, Low gas pressure

How to Fix / Troubleshooting

Safety first: Turn off burners and allow them to cool. Shut off gas if removing burner assemblies.

  • Clean burners: Remove burner caps and heads. Clean ports with a soft brush and ensure all holes are open.
  • Adjust air shutters: Many Avanti burners have adjustable air shutters near the orifice. Loosen the screw and adjust to increase air until the flame is mostly blue with minimal yellow tips.
  • Verify gas type: Confirm the range is configured for your gas type (natural or LP). If recently converted or installed, ensure the correct orifices and regulator setting are used.
  • Contact gas supplier: If flames remain yellow after cleaning and adjustment, have gas pressure checked by a professional.
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Repair Difficulty

Medium 3/5

Required Part

Surface Burner Assembly
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