Induction or radiant cooktop section displays E1 and will not heat.

Safety first: Turn off the affected burner and allow the cooktop to cool.

Steps to check:

• Verify cookware: For induction zones, ensure you are using ferromagnetic cookware (a magnet should stick firmly to the bottom).
• Cool-down: Remove pots and let the surface cool completely. E1 may clear automatically once temperature drops.
• Check ventilation: Ensure there is adequate clearance and airflow under the cooktop in the cabinet. Remove any stored items blocking vents.
• Service sensor: If E1 recurs even when cool and with proper cookware, the temperature sensor or induction module may be faulty and should be tested and replaced by a technician.