Bertazzoni
Poor Gas Combustion / Burner Contamination
On gas Bertazzoni ovens, burner lights but flame is weak, yellow, or uneven.
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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, Incorrect gas pressure or orifice, Misaligned burner cap, Restricted air shutter
How to Fix / Troubleshooting
Safety first: Turn off gas and power before removing burner parts. If you smell strong gas, ventilate and contact a professional.
- Clean burner: Remove the oven bottom panel and burner assembly if accessible. Clean ports with a soft brush or wooden toothpick; do not enlarge holes.
- Check burner alignment: Ensure the burner is properly seated and aligned with the igniter and flame sensor.
- Inspect flame color: After reassembly, relight and observe. A mostly blue flame with small yellow tips is normal; large yellow flames indicate incomplete combustion and require gas pressure or air adjustment by a qualified technician.
- Verify gas type: Ensure the oven is configured for the correct gas (natural or LP) with proper orifices as per Bertazzoni specifications.
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Repair Difficulty
Hard
4/5
Required Part
Oven Gas Burner Assembly
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