Bosch Improper Gas-Air Mixture / Burner Adjustment Issue

Gas burner flame is yellow, noisy, or lifting off the burner on Bosch gas cooktop or range.

Advertisements

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.

Advertisements

Possible Causes

Incorrect gas type (NG vs LP) or orifices, Blocked burner air shutter, High gas pressure, Dirty burner ports

How to Fix / Troubleshooting

Safety first: Turn off the burner and allow it to cool. If you smell strong gas, shut off the main gas supply and ventilate the area.

  • Check conversion: Verify the cooktop is configured for the correct gas type (natural gas or LP) and that the proper orifices are installed.
  • Clean burner: Remove the burner cap and head. Clean ports and air openings with a soft brush.
  • Inspect air shutter: On some models, adjust the air shutter at the burner tube to achieve a stable blue flame.
  • Call gas technician: If flames remain yellow or noisy, have a licensed gas technician check gas pressure and adjust as needed.
Advertisements

Repair Difficulty

Medium 3/5

Required Part

Burner Orifice Kit
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements