Zodiac
Loose Impeller or Debris in Impeller
Pump makes a rattling or clattering noise, especially at startup.
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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
Impeller not fully tightened on shaft, Broken impeller vanes, Pebbles or debris in impeller, Worn diffuser or wear ring
How to Fix / Troubleshooting
Safety: Turn off power and close valves before opening the pump.
- Inspect basket: Remove and clean the pump basket to prevent debris from entering the impeller.
- Access impeller: Remove the pump housing and diffuser to expose the impeller.
- Remove debris: Clear any stones, plastic, or other debris from the impeller vanes.
- Tighten impeller: Hold the motor shaft at the rear and hand-tighten the impeller onto the shaft per Zodiac instructions.
- Inspect for damage: Replace the impeller or diffuser if vanes are broken or the wear ring is badly worn.
Reassemble and test the pump. If noise persists, further inspection by a technician may be needed.
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Repair Difficulty
Medium
3/5
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