Certikin Incorrect Phase Rotation (3‑Phase Models)

Pump runs backwards (water flow is reversed or very weak) after recent electrical work.

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.

Possible Causes

Two phases reversed at motor terminals, incorrect wiring in control panel

Safety: Only a qualified electrician should alter phase connections. Isolate and lock off supply.

Check rotation: Briefly run the pump and observe flow direction or motor fan rotation.
Swap phases: Swap any two of the three phase conductors at the motor terminals or contactor output to correct rotation.

Hard 4/5

Certikin pump motor wiring

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