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

Safety first: Ensure your hands are dry when working with electrical components. Turn off the breaker before opening panels.

• Check household power: Verify the breaker is not tripped and the outlet has correct voltage using a meter or another appliance.
• Inspect power cord: Look for cuts, burns, or loose connections at the cord entry. Replace the cord if damaged.
• Check line fuse/filter: Access the line filter and any internal fuse near the cord entry. Test the fuse for continuity and replace if blown. Inspect the filter for burns.
• Control board: If power is present at the control board but there is no response, the board may be defective and require replacement.
• Professional help: If you are not comfortable testing live voltage, contact a qualified technician.