Electronic Etna cooktop or range will not power on, display shows E0 or remains blank with occasional E0 flash.

Safety first: Turn off the circuit breaker for the range/cooktop and verify power is off with a non-contact voltage tester before removing any panels.

• Check wall supply: Confirm the Etna range is on a dedicated circuit. Reset the breaker fully OFF then ON. If it trips again, stop and call an electrician.
• Inspect mains terminal block: Remove the rear cover where the power cord connects. Look for burnt wires, loose screws, or melted insulation. Tighten terminal screws firmly and replace any burnt wiring or terminal block.
• Check internal fuse (if fitted): Many Etna electronic cooktops have a small ceramic or glass fuse on the main control PCB. With power disconnected, remove the top or rear panel, locate the fuse, and test it with a multimeter for continuity. Replace only with the same rating.
• Inspect control PCB: Look for burnt spots, bulging capacitors, or corrosion on the main control board and touch control board. Reseat all ribbon cables and connectors.
• If E0 persists: The main control PCB or user interface board is likely defective and should be replaced as a complete module.