AquaFlo Hydraulic Overload / High Head Condition

Pump shuts off when spa jets or water features are turned on; no error code shown.

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Possible Causes

Excessive backpressure from small plumbing, Multiple valves closed simultaneously, Undersized AquaFlo pump for added features, Overly high programmed speed

How to Fix / Troubleshooting

Safety first: Turn off power before adjusting valves if they are hard to reach or near electrical components.

  • Open valves gradually: When activating spa or features, open valves slowly to avoid sudden pressure spikes.
  • Reduce speed: On variable-speed AquaFlo pumps, program a lower RPM for high-resistance modes like spa jets.
  • Monitor filter pressure: Ensure pressure stays within the filter’s safe operating range. If pressure spikes when features are on, adjust valve positions to balance flow.
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Repair Difficulty

Easy 2/5
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