How to Fix / Troubleshooting

Safety first: Disconnect power and allow the cooktop to cool before accessing internal components.

Check airflow: Ensure cabinet vents around the cooktop are not blocked. Remove any items stored directly under the cooktop that may obstruct airflow.
Inspect fan: Remove the cooktop from the counter and access the underside. Locate the cooling fan. Check for debris preventing the fan from spinning and clean as needed.
Test fan motor: Spin the fan by hand; it should move freely. Measure resistance across the fan leads; an open circuit indicates a failed motor. Replace the fan assembly.
Verify fan operation: After reassembly, run the cooktop and listen for the fan. If the fan does not run and E7 persists, the power board's fan driver may be defective and require replacement.

Induction cooktop zone shows E7 and does not heat.

Possible Causes