Pahlen Imbalance / Misalignment

Pahlén pool pump vibrates excessively and moves on its mounting base

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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

Debris lodged in impeller, Bent motor shaft, Loose mounting bolts, Pump not anchored to solid base

How to Fix / Troubleshooting

Safety first: Turn off power before touching the pump or motor. Excessive vibration can cause plumbing damage.

  • Check mounting: Ensure the Pahlén pump is securely bolted to a solid, level base. Tighten mounting bolts as needed.
  • Inspect impeller: Open the wet end and remove any debris from the impeller that could cause imbalance.
  • Check shaft runout: Rotate the shaft by hand and observe for wobble. A bent shaft requires motor replacement.
  • Re-align unions: Loosen unions, allow the pump to sit naturally, then retighten to avoid stress on the housing.
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Repair Difficulty

Medium 3/5

Required Part

Pump Mounting Feet
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