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

Safety first: Ensure your hands are dry and the area is not wet when working with mains power.

• Check outlet and breaker: Plug another device into the same socket to confirm power. Reset any tripped breakers or replace blown fuses in the home panel.
• Inspect power cord: Look for cuts, burns, or crushed sections on the Gorenje power cord. Do not use the appliance if the cord is damaged; replace it.
• Test power switch (if external): Ensure any external on/off switch is in the ON position.
• Advanced internal check: With the appliance unplugged, remove the top cover and locate the mains filter module where the cord enters. Inspect for burn marks or swollen components. Replace the EMI filter if visibly damaged.

If the mains filter and cord are fine, the main control board's power supply may have failed and should be serviced by a professional.