Washer-dryer vibrates excessively and "walks" across the floor during spin, even when levelled.

Safety first: Unplug the appliance before adjusting feet. Do not place hands under the machine while it is spinning.

Step-by-step checks:

• 1. Remove transit bolts: If the machine is new, ensure all rear transit bolts and packing have been removed according to the Montpellier installation guide.
• 2. Re-level: Adjust all four feet so the machine is stable and does not rock. Lock the nuts to prevent movement.
• 3. Floor reinforcement: If installed on a suspended wooden floor, consider placing a thick plywood board under the machine to spread the load and reduce flex.
• 4. Load size: Avoid very small loads or single heavy items. Follow the recommended maximum load for wash and dry cycles.