Pentair Control Logic / Automation Override Issue

Pump speed changes unexpectedly or does not follow the programmed schedule on Pentair IntelliFlo or IntelliFlo3.

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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

External automation (EasyTouch/IntelliCenter) overriding local schedule, Multiple conflicting schedules programmed, Stuck relay or incorrect wiring from automation, Faulty control board

How to Fix / Troubleshooting

Safety first: Turn off power before working on control wiring.

  • Step 1 – Check automation mode: If the pump is connected to Pentair automation, verify whether it is set to be controlled by the automation system rather than local schedules.
  • Step 2 – Review schedules: On the pump keypad, review and simplify schedules to avoid overlapping programs that can cause speed changes.
  • Step 3 – Inspect control wiring: Ensure that any relay or RS‑485 connections are wired per Pentair diagrams and that no unintended control signals are present.
  • Step 4 – Test standalone: Temporarily disconnect automation and run the pump in standalone mode. If behavior normalizes, reconfigure the automation system.
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Repair Difficulty

Medium 3/5
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