Gas burner flame is yellow, noisy, or lifts off the burner ports instead of being blue and stable.

Safety first: Turn off the burner and allow it to cool. Close the gas supply if you suspect a serious combustion issue. Do not inhale combustion fumes.

• Step 1 – Clean burner: Remove the burner cap and head. Soak in warm soapy water and use a soft brush or toothpick to clear each port. Do not enlarge the holes.
• Step 2 – Dry and reassemble: Dry all parts thoroughly and reassemble, ensuring correct alignment.
• Step 3 – Check ventilation: Ensure the kitchen is adequately ventilated and that no air inlets are blocked.
• Step 4 – Verify gas type (technician): Confirm that the cooktop is configured for the correct gas type (natural gas vs. LPG). Check injector markings and compare with the rating plate. Replace injectors if incorrect.
• Step 5 – Adjust primary air (technician): Some Balay burners have adjustable air shutters near the injector. Adjust according to the service manual to achieve a stable blue flame.

If yellow flames persist, contact a gas technician to check gas pressure and combustion safety.