DAB
Impeller Damage or Debris
Pump is noisy with a rattling or grinding sound from the wet end, but motor seems smooth
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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
Foreign objects in DAB impeller, Broken impeller vanes, Loose impeller on shaft, Worn diffuser or volute
How to Fix / Troubleshooting
Safety first: Isolate power and close valves before disassembling the pump.
Steps to check:
- Open the wet end: Remove the pump lid and basket. Unbolt the pump housing to access the impeller and diffuser.
- Remove debris: Carefully remove stones, twigs, or other objects from the impeller vanes.
- Inspect impeller: Check for cracks, missing vanes, or a loose fit on the shaft. Replace the DAB impeller if damaged.
- Check diffuser: Inspect the diffuser for wear or broken guides. Replace if necessary.
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Repair Difficulty
Medium
3/5
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