Viking gas cooktop burners click continuously and F18 may appear on models with integrated controls.

Safety first: Turn off power to the range and shut off gas if you will be removing burner components. Avoid using the cooktop if you smell gas.

Steps to check and correct:

• Dry out moisture: If the issue started after cleaning or a spill, unplug the range and allow the cooktop to dry for several hours. You can remove burner caps and heads to speed drying.
• Inspect igniters: Check each burner igniter (small ceramic post near burner) for cracks, heavy grease, or carbon buildup. Clean gently with a soft brush and isopropyl alcohol.
• Check burner switches: Under the knobs, each valve has a small switch that signals the spark module. If one is stuck closed, the igniters will click constantly. Inspect for broken or wet switches and replace as needed.
• Test spark module: If no burners spark or F18 persists, the spark module may be defective. Access it from beneath the cooktop or behind the front panel and inspect for burn marks.
• Reassemble and test: After cleaning and drying, restore power and test each burner individually.

When to call a technician: If the spark module or valve switches need replacement, or if you are not comfortable lifting the cooktop, contact a professional.