Flowclear Worn Motor Bearings / Mechanical Wear

Pump is very noisy during operation, with grinding or screeching sounds.

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Safety Warning

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.

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Possible Causes

Worn motor bearings, Misaligned pump shaft, Damaged impeller rubbing housing, Cavitation due to low inlet pressure

How to Fix / Troubleshooting

Safety first: Unplug the pump before inspection. Prolonged operation with loud mechanical noise can lead to sudden failure.

Steps:

  • 1. Isolate noise source: Place your hand lightly on the motor housing and pump body (while off) to identify where the noise originates when briefly powered.
  • 2. Check for cavitation: Ensure the suction line is not restricted and that the pump is fully primed. Cavitation can cause rattling noises and damage over time.
  • 3. Inspect impeller: Remove the pump housing and inspect the Flowclear impeller for cracks or rubbing marks. Replace if damaged.
  • 4. Bearing assessment: If the noise is a high-pitched squeal or grinding from the motor, the bearings are likely worn. These are not typically user-serviceable on Flowclear pumps; replace the motor assembly.
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Repair Difficulty

Hard 4/5

Required Part

Flowclear Pump Motor Assembly
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