E8 is displayed and the cooker does not respond to button presses or cannot start any program.

Safety first: Unplug the appliance before removing the control panel.

• Dry the panel: If the panel was recently cleaned with liquid, leave the cooker unplugged for 24 hours in a dry place to allow moisture to evaporate.
• Inspect ribbon cable: Remove the front/top cover to access the keypad ribbon cable. Ensure it is fully inserted into the connector and not torn.
• Check for cracks: Examine the keypad overlay for physical damage or bubbling, which can indicate delamination or liquid damage.
• Test buttons: With the unit reassembled and powered, test each button. If some or all keys are unresponsive and E8 remains, the keypad or control PCB is likely faulty.
• Replace keypad or PCB: Install a new Binatone membrane keypad/touch panel assembly. If the issue persists, replace the main control PCB that processes keypad signals.