L’OR Noisy Pump / Cavitation

Pump is very loud or rattling compared to normal operation.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Air in water circuit, Low water level in tank, Loose pump mounting, Worn vibration pump

Safety: Keep hands away from moving parts while running.

Fill tank: Ensure the L’OR water tank is full and properly seated.
Prime pump: Run 3–4 rinse cycles without a capsule to purge air.
Check for vibration: Place the machine on a stable, level surface. A soft mat can reduce noise but should not block ventilation.
If noise persists or worsens: The pump may be failing or its mounts may be loose internally. Professional replacement is recommended.

Medium 3/5

Vibration Pump (ULKA type)

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