PUMP FAIL
Jandy
Automation-Detected Pump Failure
AquaLink or Jandy automation panel shows PUMP FAIL; pump does not start when commanded.
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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
No power to pump, Failed relay in AquaLink, Faulty pump motor, Communication failure between AquaLink and pump
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker before opening the AquaLink panel or pump electrical cover.
- Verify pump power:
- Check that the pump breaker is ON.
- Confirm any service switches near the pump are in the RUN or AUTO position.
- Test pump locally:
- If the pump has a local keypad, try starting it manually.
- If it runs locally but not from AquaLink, the issue is with automation or communication.
- Inspect AquaLink relay (for single-speed pumps):
- Open the AquaLink panel and locate the filter pump relay.
- Look for signs of burning or pitting; replace the relay if damaged.
- Check RS-485 communication (for VS pumps):
- Inspect and reseat the RS-485 cable between AquaLink and the pump.
- If PUMP FAIL persists: The pump motor or AquaLink main board may be defective. Professional diagnosis is recommended.
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Repair Difficulty
Hard
4/5
Required Part
AquaLink Pump Relay
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