F5
Aquavia Spa Pump Overcurrent / Motor Protection Fault

F5 appears and pumps may not start or may shut down shortly after starting.

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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

Seized pump impeller, Debris in wet end, Failing pump motor bearings, Incorrect supply voltage or wiring to pump

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker and lock it out if possible. Do not run a pump that hums loudly or trips breakers.

  • Check for obstructions: Remove the pump unions and inspect the impeller area for debris (stones, plastic, leaves). Clear any blockage.
  • Spin the shaft: With the pump disconnected from power, try to rotate the motor shaft by hand (or via the rear cooling fan). It should turn smoothly. If it is stiff or seized, the pump motor likely needs replacement.
  • Verify wiring: Confirm that the pump is wired according to the Aquavia Spa wiring diagram (correct voltage and connections). Incorrect wiring can cause overcurrent.
  • Reassemble and test: Reattach unions, ensure gaskets are seated, restore power, and test. If F5 returns, replace the affected pump assembly.
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Repair Difficulty

Hard 4/5

Required Part

Hydrotherapy Pump
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