Washer-dryer combo will not power on at all; no lights or display.

Safety first: Do not open electrical panels unless you are qualified. Always unplug the appliance before internal checks.

• Check household supply: Verify the circuit breaker is not tripped and the outlet has power by plugging in another device.
• Inspect power cord and plug: Look for visible damage, burns, or loose prongs. Replace the cord if damaged.
• Test a different outlet: Plug the unit into a known-good outlet on a dedicated circuit (if possible) to rule out outlet issues.
• Internal checks: With the unit unplugged, remove the top panel and inspect the EMI filter/power entry module for burned components or loose wires. Tighten terminals as needed.
• Call a technician: If the unit still shows no signs of life, the main control board's low-voltage power supply is likely faulty and should be replaced by a professional.