Dishwasher will not power on at all; no lights or display, completely dead.

Safety first: Ensure the circuit breaker is off before opening any electrical covers.

• Check outlet and breaker: Verify that the wall outlet has power by testing with another appliance. Reset any tripped breakers or replace blown fuses in the home panel.
• Inspect power cord: Check the dishwasher power cord for cuts, burns, or loose connections at the terminal block.
• Access mains filter: Remove the lower front panel to locate the mains filter module. Inspect for burn marks or swelling. Replace if damaged.
• Check internal fuse: On some Arcelik models, the main PCB has a small fuse. With power disconnected, inspect and replace with the same rating if blown.
• Control board replacement: If power is present at the board but the dishwasher remains dead, the main control board is likely faulty and should be replaced by a qualified technician.