Onga
Onga Pool Pumps Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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E01
Pump will not start, digital controller shows E01 immediately when ON is pressed.
Motor Overload Trip / Locked Rotor
E02
Pump stops shortly after starting, controller displays E02 and will not restart until cooled.
Thermal Overload / Overheating Protection
E03
Digital Onga pump controller shows E03 and pump will not run, often after a storm or power surge.
Motor Start Circuit / Capacitor Failure
E04
Pump controller displays E04 and the pump will not start; sometimes occurs intermittently.
Low Voltage / Supply Fault Detection
E05
Onga variable-speed pump shows E05 and shuts down during operation.
Overcurrent / Overload Condition
E06
Controller displays E06 and pump will not run; often associated with moisture ingress.
Motor Insulation / Earth Leakage Fault
E07
Variable-speed Onga pump shows E07 and stops, often when changing speeds.
Drive Electronics / Inverter Fault
E08
Pump controller displays E08 and the pump will not prime or run.
Priming Timeout / No-Flow Detected
E09
Onga controller shows E09 and pump stops unexpectedly during normal filtration.
Dry-Run Protection / Loss of Prime
E10
Controller displays E10 and pump will not respond to keypad commands.
Communication / Keypad Interface Fault
Symptom
Pump basket does not fill completely with water; water level sits low and surges.
Partial Prime / Suction Restriction
Symptom
Pump housing or nearby plumbing is hot to the touch after running, with a strong hot plastic smell.
Overheating Due to Restricted Flow or Electrical Overload
Symptom
Pump is excessively hot but still running; thermal overload has not yet tripped.
Marginal Overload / Cooling Deficiency
Symptom
Pump is unusually loud with a cavitation sound (gravelly, crackling) and reduced flow.
Cavitation Due to High Suction Lift or Restriction
Symptom
Pump is very noisy, with a high-pitched whine or grinding sound from the motor end.
Motor Bearing Failure
Symptom
Pump loses prime and runs dry after a few minutes, basket housing fills with air.
Suction-Side Air Leak
Symptom
Pump makes a clicking or knocking noise in time with motor rotation.
Foreign Object in Impeller or Damaged Fan
Symptom
Pump makes a rattling or clattering noise from the wet end, especially at startup.
Impeller or Diffuser Damage / Debris
Symptom
Pump motor hums loudly but does not start spinning, then trips the breaker or overload.
Failed Start Capacitor / Locked Rotor
Symptom
Pump performance has gradually declined over months; longer run times needed to keep pool clean.
General Wear / Efficiency Loss
Symptom
Pump runs but there is a constant stream of air bubbles from the pool return jets.
Minor Suction Air Leak / Cavitation
Symptom
Pump runs but there is a noticeable electrical burning smell from the motor housing.
Overheating Windings / Insulation Breakdown
Symptom
Pump runs but there is very low or no water flow back to the pool.
Hydraulic Flow Restriction / Blockage
Symptom
Pump runs but there is water leaking from the join between the pump housing and the volute cover.
Housing O-Ring or Gasket Failure
Symptom
Pump runs but timer or automation does not control it correctly; it stays on or off regardless of schedule.
Control Integration / Relay Fault
Symptom
Pump runs but water appears cloudy and circulation seems poor despite normal pressure.
Under-Sized or Worn Impeller / Incorrect Speed Setting
Symptom
Pump runs intermittently, stopping and starting on its own without timer changes.
Thermal Overload Cycling / Intermittent Electrical Fault
Symptom
Pump speed fluctuates up and down on a variable-speed Onga model without changes to settings.
Unstable Drive Control / Sensor Feedback Issue
Symptom
Pump trips the circuit breaker or RCD immediately when switched on.
Electrical Short or Earth Leakage
Symptom
Pump vibrates excessively, causing pipes to shake and the pump to move on its base.
Imbalance / Mounting or Alignment Issue
Symptom
Pump will not restart after a power outage until manually reset.
Auto-Restart / Memory Configuration Issue
Symptom
Pump will not start at all; no humming, no sound, but power is available at the outlet.
Open Circuit / Control or Power Supply Failure
Symptom
Water is leaking from between the motor and the pump wet end, often forming a steady drip under the pump.
Mechanical Shaft Seal Failure
Symptom
Water leaking from around the clear pump lid when the pump is running.
Lid Seal Failure / Warped Lid
Symptom
Water leaking from the drain plug at the bottom of the pump housing.
Drain Plug Seal Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Pump will not start, digital controller shows E01 immediately when ON is pressed.
|
Motor Overload Trip / Locked Rotor | View Details |
| E02 |
Pump stops shortly after starting, controller displays E02 and will not restart until cooled.
|
Thermal Overload / Overheating Protection | View Details |
| E03 |
Digital Onga pump controller shows E03 and pump will not run, often after a storm or power surge.
|
Motor Start Circuit / Capacitor Failure | View Details |
| E04 |
Pump controller displays E04 and the pump will not start; sometimes occurs intermittently.
|
Low Voltage / Supply Fault Detection | View Details |
| E05 |
Onga variable-speed pump shows E05 and shuts down during operation.
|
Overcurrent / Overload Condition | View Details |
| E06 |
Controller displays E06 and pump will not run; often associated with moisture ingress.
|
Motor Insulation / Earth Leakage Fault | View Details |
| E07 |
Variable-speed Onga pump shows E07 and stops, often when changing speeds.
|
Drive Electronics / Inverter Fault | View Details |
| E08 |
Pump controller displays E08 and the pump will not prime or run.
|
Priming Timeout / No-Flow Detected | View Details |
| E09 |
Onga controller shows E09 and pump stops unexpectedly during normal filtration.
|
Dry-Run Protection / Loss of Prime | View Details |
| E10 |
Controller displays E10 and pump will not respond to keypad commands.
|
Communication / Keypad Interface Fault | View Details |
| – |
Pump basket does not fill completely with water; water level sits low and surges.
|
Partial Prime / Suction Restriction | View Details |
| – |
Pump housing or nearby plumbing is hot to the touch after running, with a strong hot plastic smell.
|
Overheating Due to Restricted Flow or Electrical Overload | View Details |
| – |
Pump is excessively hot but still running; thermal overload has not yet tripped.
|
Marginal Overload / Cooling Deficiency | View Details |
| – |
Pump is unusually loud with a cavitation sound (gravelly, crackling) and reduced flow.
|
Cavitation Due to High Suction Lift or Restriction | View Details |
| – |
Pump is very noisy, with a high-pitched whine or grinding sound from the motor end.
|
Motor Bearing Failure | View Details |
| – |
Pump loses prime and runs dry after a few minutes, basket housing fills with air.
|
Suction-Side Air Leak | View Details |
| – |
Pump makes a clicking or knocking noise in time with motor rotation.
|
Foreign Object in Impeller or Damaged Fan | View Details |
| – |
Pump makes a rattling or clattering noise from the wet end, especially at startup.
|
Impeller or Diffuser Damage / Debris | View Details |
| – |
Pump motor hums loudly but does not start spinning, then trips the breaker or overload.
|
Failed Start Capacitor / Locked Rotor | View Details |
| – |
Pump performance has gradually declined over months; longer run times needed to keep pool clean.
|
General Wear / Efficiency Loss | View Details |
| – |
Pump runs but there is a constant stream of air bubbles from the pool return jets.
|
Minor Suction Air Leak / Cavitation | View Details |
| – |
Pump runs but there is a noticeable electrical burning smell from the motor housing.
|
Overheating Windings / Insulation Breakdown | View Details |
| – |
Pump runs but there is very low or no water flow back to the pool.
|
Hydraulic Flow Restriction / Blockage | View Details |
| – |
Pump runs but there is water leaking from the join between the pump housing and the volute cover.
|
Housing O-Ring or Gasket Failure | View Details |
| – |
Pump runs but timer or automation does not control it correctly; it stays on or off regardless of schedule.
|
Control Integration / Relay Fault | View Details |
| – |
Pump runs but water appears cloudy and circulation seems poor despite normal pressure.
|
Under-Sized or Worn Impeller / Incorrect Speed Setting | View Details |
| – |
Pump runs intermittently, stopping and starting on its own without timer changes.
|
Thermal Overload Cycling / Intermittent Electrical Fault | View Details |
| – |
Pump speed fluctuates up and down on a variable-speed Onga model without changes to settings.
|
Unstable Drive Control / Sensor Feedback Issue | View Details |
| – |
Pump trips the circuit breaker or RCD immediately when switched on.
|
Electrical Short or Earth Leakage | View Details |
| – |
Pump vibrates excessively, causing pipes to shake and the pump to move on its base.
|
Imbalance / Mounting or Alignment Issue | View Details |
| – |
Pump will not restart after a power outage until manually reset.
|
Auto-Restart / Memory Configuration Issue | View Details |
| – |
Pump will not start at all; no humming, no sound, but power is available at the outlet.
|
Open Circuit / Control or Power Supply Failure | View Details |
| – |
Water is leaking from between the motor and the pump wet end, often forming a steady drip under the pump.
|
Mechanical Shaft Seal Failure | View Details |
| – |
Water leaking from around the clear pump lid when the pump is running.
|
Lid Seal Failure / Warped Lid | View Details |
| – |
Water leaking from the drain plug at the bottom of the pump housing.
|
Drain Plug Seal Failure | View Details |
No matching codes found
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