The gas cooktop burner will not ignite; you hear clicking but no flame, or the flame only lights with a match.

Safety first: Turn off all burner knobs. If you smell gas, ventilate the area and avoid open flames.

Steps to check:

• Cap alignment: Remove and reseat the burner cap so it sits flat and centered on the burner base.
• Clean burner: Use a brush or pin to clear debris from burner ports and the small ignition port near the electrode.
• Check spark: Turn the knob to ignite and look for a strong blue spark at the electrode. If the spark is weak or arcing elsewhere, clean and dry the area.
• Electrode condition: Inspect the ceramic insulator for cracks. Replace the surface burner igniter electrode if damaged.
• Spark module: If none of the burners spark, the spark module or power supply may be faulty. Verify 120 VAC to the module and replace the module if it does not output a spark.

Note: Ensure burner parts are completely dry after cleaning before testing ignition.