Washer-dryer combo will not start a cycle; lights are on but pressing Start does nothing.

Safety first: Unplug the unit before removing the console or door lock.

• Check door and lock: Ensure the door is firmly closed and you hear the lock engage. If not, inspect and replace the door lock assembly as needed.
• Disable child lock: Refer to the user manual to turn off control lock (often by holding a specific button combination for several seconds).
• Test Start button: If other buttons respond but Start does not, the UI board or membrane may be faulty and require replacement.
• Reset control: Disconnect power for 5 minutes, then restore and try again. If still no start, the main control may be defective.