Washer vibrates excessively and "walks" across the floor during spin; no error code.

Safety first: Unplug the washer.

Step-by-step checks:

• Remove transit bolts: On new installations, ensure all rear transit bolts and spacers have been removed as per the installation manual.
• Level the machine: Adjust the front and rear feet so the washer is stable and does not rock. Use a spirit level.
• Check shocks: Inspect and replace worn shock absorbers.
• Load correctly: Avoid single heavy items; mix small and large garments.