Continuous clicking from gas cooktop even when all burners are off.

Safety first: Disconnect power and close the gas valve. Continuous sparking can ignite gas if there is a leak.

• Dry thoroughly: Remove knobs and dry the area around the valve stems. Allow several hours for internal moisture to evaporate.
• Clean grease: Remove grease buildup that may bridge contacts.
• Test after drying: Restore power and check if clicking stops when knobs are off.

When to call a technician: If clicking continues, a spark switch or ignition module is likely defective and should be replaced.