Dishwasher does not power on at all; no lights or display, no response to buttons.

Safety: Always isolate the appliance at the circuit breaker before opening any electrical covers. If you are not trained, do not work on live circuits.

• Check external supply: Verify the wall socket has power by testing with another appliance. Check the household circuit breaker or fuse.
• Inspect mains cable: Ensure the dishwasher's mains cable is not damaged or crushed behind the unit.
• Access terminal block: Remove the lower front or side cover to reach the terminal block and mains filter. Tighten any loose screws and inspect for burn marks.
• Check mains filter: If the mains interference filter is visibly burnt or cracked, replace it.
• Control module: If power reaches the control but the display remains dead, the power control module is likely faulty and should be replaced by a professional.