Hydropool Worn Pump Bearings or Cavitation

Spa makes a high-pitched whine or grinding noise from the pump area during 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

Failing bearings in Hydropool pump motor, Pump running dry or air-locked, Debris in impeller, Misaligned pump mounting

Safety: Turn off power before touching the pump or motor.

Check for air: Bleed air from pump unions to ensure the pump is fully flooded.
Listen closely: If the noise persists with good water flow, bearings may be failing.
Inspect mounting: Ensure the pump is securely mounted and not vibrating against the spa base or cabinet.
Plan replacement: Bearing replacement typically requires motor rebuild; most owners replace the Hydropool pump motor or complete pump assembly.

Medium 3/5

Hydropool jet pump motor

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