Washer-dryer makes loud banging or knocking noises during spin

Safety first: Unplug the appliance. Do not continue to use the machine if it is violently shaking; damage may worsen.

Step-by-step checks:

• 1. Check load and leveling:
  • Ensure the machine is level on all four feet; adjust as needed.
  • Avoid single heavy items; distribute laundry evenly.
• 2. Inspect shock absorbers:
  • Remove rear or side panel to view the tub supports.
  • Look for oil leakage, broken mounts, or excessive play when pushing the tub down and releasing.
  • If the tub bounces more than once, replace both shock absorbers.
• 3. Check suspension springs and counterweights:
  • Inspect top springs for stretching or breakage.
  • Ensure concrete or cast-iron counterweights are tight; retighten bolts if loose.

When to call a technician: If springs or counterweights are cracked or if access is difficult, professional service is recommended.