Gas cooktop burner clicks and sparks but flame does not light or is very weak

Safety first: Turn off the burner and allow components to cool. Turn off gas supply if removing injectors.

• Check burner cap: Ensure the burner cap is correctly seated on the base and not tilted. Misalignment can prevent gas from reaching the spark.
• Clean burner ports: Remove the cap and burner head. Use a soft brush or wooden toothpick to clear any food or grease from the gas ports. Do not enlarge the holes.
• Inspect injector: Look down into the burner base to see the brass injector. If blocked, carefully clean with a soft brush; do not use hard tools that can damage the orifice.
• Test gas supply: If all burners are weak, check that the gas shutoff valve is fully open and that the correct gas type (natural or LPG) and regulator are installed.
• Professional adjustment: If flames remain small or uneven, a technician may need to clean or replace injectors and verify gas pressure.