Gas surface burner ignites but flame is weak, uneven, or goes out at low settings.

Safety first: Turn off the burner and allow components to cool before handling. If flames are lifting off the burner or very yellow, shut off gas and call for service.

Steps to check and correct:

• Clean burner: Remove the burner cap and head. Use a soft brush or toothpick to clean the ports; do not enlarge them.
• Re-seat cap: Ensure the burner cap is properly centered and sits flat on the burner head.
• Check shutoff valve: Verify the gas shutoff behind the range is fully open.
• Conversion check: If the range was converted between natural gas and LP, confirm the correct orifices are installed and the regulator is set properly (this is typically a technician task).

When to call a technician: If cleaning and alignment do not correct the flame, gas pressure or conversion may be incorrect and should be checked by a professional.