Viking induction cooktop zone displays F19 and will not heat.

Safety first: Turn off the cooktop at the breaker before accessing internal components. Induction units contain high-voltage capacitors that can retain charge.

Steps to check and correct:

• Allow to cool: If F19 appears after extended high-power use, turn the unit off and let it cool for 30 minutes. Ensure adequate ventilation around the cooktop.
• Check cookware: Use flat-bottomed, induction-compatible cookware that fully covers the cooking zone. Avoid oversized pans that block vents.
• Inspect vents and fan: With power off, check that the underside vents are not blocked by insulation or cabinetry. Listen for the cooling fan when the unit is on; if silent, the fan may have failed.
• Internal inspection: Access the underside of the cooktop to inspect the power module and fan. Look for dust buildup, burnt components, or disconnected fan wiring.
• Replace faulty parts: If the fan is not running or the power module shows signs of damage, replacement is required.

When to call a technician: Induction electronics are complex and dangerous to service without training; professional repair is strongly recommended.