E7 error on induction cooktop, touch controls unresponsive or random beeping

Safety first: Turn off the cooktop at the breaker before removing any panels.

• Dry the surface: Wipe the glass control area thoroughly with a dry, soft cloth. Remove any spills, condensation, or cleaning fluid residue.
• Power reset: Disconnect power for 5–10 minutes to reset the touch controller. Restore power and test.
• Check for stuck keys: Ensure no objects (cloths, utensils) are resting on the touch area. Some Hansa models will show an error if a key is held continuously.
• Inspect ribbon cable: If accessible from below, locate the flat ribbon cable from the touch panel to the control board. Reseat both ends carefully.
• Panel replacement: If E7 persists and keys remain unresponsive or trigger randomly, replace the Hansa touch control panel / user interface PCB.

Warning: Do not spray cleaner directly onto the control area; apply it to a cloth first to avoid moisture ingress into the electronics.