Gas burner lights but flame is weak, uneven, or goes out at low settings on LG gas range/cooktop.

Safety first: Turn off all burners and shut off gas supply if disassembling burners. Do not use sharp metal objects in burner ports.

• Clean burner ports: Remove burner caps and heads. Use a soft brush or wooden toothpick to clear debris from the small gas ports. Do not enlarge the holes.
• Re-seat caps: Reinstall burner heads and caps, ensuring they sit flat and centered.
• Check gas valve: Verify the gas shutoff valve is fully open. If other gas appliances are also weak, contact your gas supplier.
• Fuel type: Confirm the range is configured for your gas type (natural gas vs LP). If converted, ensure the correct LG conversion kit and orifices were installed.
• Test flame: Light the burner and observe flame height and color. A proper flame is mostly blue with small yellow tips.