Alarm 006
Pentair Phase Loss / Motor Phase Fault (internal to drive)

IntelliFlo3 VSF or similar Pentair pump shows “Alarm 006” and stops.

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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

Open circuit in motor windings, Failed output transistor in drive, Loose internal motor connection, Severe overheating damage

How to Fix / Troubleshooting

Safety first: Do not attempt to run the pump repeatedly under this alarm.

  • Step 1 – Visual inspection: With power OFF, inspect the motor and drive for burn marks, melted plastic, or strong burnt odor.
  • Step 2 – Motor continuity test (technician): A professional can test the motor windings for continuity and balance. An open or imbalanced phase indicates motor failure.
  • Step 3 – Replace assembly: Phase faults in integrated variable‑speed pumps are not field‑repairable. Replace the motor and drive assembly per Pentair procedures.
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Repair Difficulty

Professional Required 5/5

Required Part

IntelliFlo3 Motor and Drive Assembly
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