Onga Overheating Due to Restricted Flow or Electrical Overload

Pump housing or nearby plumbing is hot to the touch after running, with a strong hot plastic smell.

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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

Closed valves, blocked filter, incorrect voltage, motor overloading

How to Fix / Troubleshooting

Safety: Turn off power and allow the pump to cool before handling.

  • Check valves: Confirm all suction and return valves are open. Never run the Onga pump with closed valves.
  • Filter maintenance: Backwash or clean the filter to restore normal flow.
  • Ventilation: Ensure the motor has adequate airflow and is not enclosed in a sealed box.
  • Electrical check: Have an electrician verify that the pump is wired for the correct voltage and that current draw is within the nameplate rating.

Continued overheating can damage seals and windings; correct the cause promptly.

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Repair Difficulty

Medium 3/5
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