Why faults are confused

A pump that is not performing correctly may have an electrical, mechanical, or hydraulic problem.

Electrical check

  • Phase currents.
  • Voltages.
  • Motor condition.

Hydraulic check

  • Flow rate.
  • Pressure.
  • Suction.
  • Cavitation or closed valve.

Goal

To ensure that not every instance of low pump performance is attributed to the electric motor.