Villeroy & Boch Worn Pump Bearings / Cavitation

Loud grinding or screeching noise from pump area when jets are on

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

Failed bearings in Villeroy & Boch jet pump motor, Air in pump causing cavitation, Debris in pump impeller, Misaligned pump mounting

Safety: Turn off power at the breaker before inspecting the pump.

Check for air: Bleed the pump unions to remove trapped air and see if noise improves.
Inspect impeller: Remove pump wet end (if skilled) to check for debris or broken impeller blades.
Assess bearings: Spin the motor shaft by hand; roughness or grinding indicates bad bearings.

Pump bearing replacement typically requires a new pump motor or complete pump assembly and is best handled by a technician.

Hard 4/5

Jet Pump Assembly

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