Bauknecht
Incorrect Air-Gas Mixture / Contaminated Burner
Gas cooktop burner flame is yellow and sooty instead of blue
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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
Dirty burner ports, Incorrect burner cap placement, Wrong gas type (LPG vs natural) without conversion, Blocked air shutter
How to Fix / Troubleshooting
Safety first: Ensure good ventilation and avoid inhaling soot.
- Clean burner: Remove burner cap and head. Clean thoroughly with warm soapy water and a brush. Ensure all ports are clear.
- Reassemble correctly: Place the burner cap correctly on the base; misalignment can distort the flame.
- Check gas type: Confirm that the cooktop is configured for your gas type (nozzles/jets). If converted, ensure the correct injectors are installed.
- Adjust air shutter: Some models have adjustable air shutters on the burner venturi. A technician can adjust these to achieve a stable blue flame.
Warning: Soot indicates incomplete combustion; prolonged use can be hazardous.
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Repair Difficulty
Medium
3/5
Required Part
Gas Burner Head and Cap
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