Washer makes loud banging or knocking noises during spin

Safety: Unplug the washer before accessing internal components.

• Check leveling: Ensure the Gram washer is level and stable. Adjust the feet so the machine does not rock.
• Inspect shocks: Remove rear or front panel and inspect the shock absorbers attached to the tub. If they are loose, leaking oil, or compress too easily, replace them in pairs.
• Check springs and weights: Look at the top suspension springs and concrete or cast-iron counterweights. Tighten any loose bolts and replace broken springs.
• Bearings: Spin the drum by hand. A rough, grinding feel or loud rumble indicates worn bearings, which typically require tub disassembly and professional replacement.

Do not continue high-speed spins if the machine is violently banging; this can cause structural damage.