Certikin Electrical Overload or Earth Leakage

Pump trips the circuit breaker or RCD intermittently during operation.

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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

Motor drawing excessive current due to mechanical load, partial winding short, water ingress in motor, undersized breaker, nuisance RCD tripping from inverter drives

How to Fix / Troubleshooting

Safety: Do not repeatedly reset breakers without investigation. Isolate and test.

  • Measure running current: Use a clamp meter to compare motor current with the Certikin motor nameplate rating. High current suggests mechanical or electrical issues.
  • Check for moisture: Inspect the motor terminal box and cable glands for water. Dry and reseal as needed.
  • Verify breaker rating: Ensure the MCB and RCD are correctly rated and type‑appropriate for motor and inverter loads.
  • Insulation test: Perform an insulation resistance test to check for earth leakage.

If tests indicate motor or cable faults, engage a qualified electrician or replace the motor.

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Repair Difficulty

Hard 4/5

Required Part

Certikin pump motor assembly
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