Neff
Incorrect Combustion / Air–Gas Mixture Issue
Gas burner flame is yellow, noisy, or lifting off the burner ports.
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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
Blocked burner ports, Incorrect gas type or pressure, Misadjusted air shutter, Partially blocked injector (jet)
How to Fix / Troubleshooting
Gas safety: Poor combustion can produce carbon monoxide. Ensure good ventilation and stop using the burner if the flame is unstable.
- Clean burner:
- Turn off gas.
- Remove burner cap and head.
- Clean ports with a soft brush; clear any debris.
- Check assembly: Ensure burner parts are correctly seated and not warped.
- Observe flame: A correct flame is mostly blue and stable. Persistent yellow or lifting flames indicate gas supply or adjustment issues.
- Professional adjustment: A gas technician should verify correct injectors for your gas type, check pressure, and adjust the air shutters if fitted.
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Repair Difficulty
Medium
3/5
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