Jandy
Impeller Wear or Partial Blockage
The pump runs, but water flow is weak, and filter pressure is low.
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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 impeller vanes, debris partially blocking the impeller, air leak on the suction side, incorrect impeller for motor HP
How to Fix / Troubleshooting
Safety first: Turn off power and close valves before disassembling the pump.
- Check for air leaks:
- Look for air bubbles under the pump lid while running; if present, address the lid O-ring and suction fittings.
- Inspect impeller:
- Remove the pump lid and basket.
- Remove the motor from the pump housing and inspect the impeller for wear or debris.
- Clean out any obstructions.
- Replace worn impeller:
- If vanes are eroded or broken, install a new Jandy impeller matched to your pump model and motor HP.
- Reassemble and test:
- Reassemble the pump, prime, and verify improved flow and pressure.
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Repair Difficulty
Medium
3/5
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