Aksa
Aksa Standby Generators Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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E01
Generator will not start; controller shows E01 and immediately aborts cranking.
Emergency Stop Active / External Shutdown
E02
Generator shuts down shortly after start; controller displays E02 Low Oil Pressure.
Low Oil Pressure Shutdown
E03
Generator cranks but does not start; controller shows E03 Low Fuel Level or Fuel Supply Fault.
Low Fuel / Fuel Supply Interruption
E04
Generator shuts down during run; controller displays E04 High Engine Temperature.
High Coolant Temperature Shutdown
E05
Generator shuts down; controller shows E05 Low Coolant Level or Coolant Loss.
Low Coolant Level Shutdown
E06
Generator shuts down; controller displays E06 Overspeed.
Engine Overspeed Protection
E07
Generator shuts down during cranking or shortly after start; controller shows E07 Underspeed / Failure to Reach Rated Speed.
Engine Underspeed / Failure to Accelerate
E08
Generator shuts down; controller displays E08 Overvoltage.
Generator Output Overvoltage
E09
Generator shuts down; controller shows E09 Undervoltage.
Generator Output Undervoltage
E10
Generator shuts down; controller displays E10 Overcurrent / Overload.
Overcurrent Protection Trip
E11
Generator shuts down; controller shows E11 Phase Sequence / Reverse Phase.
Incorrect Phase Rotation
E12
Generator shuts down; controller displays E12 High Battery Voltage.
Battery Overvoltage / Charger Fault
E13
Generator fails to start; controller shows E13 Low Battery Voltage.
Low Battery / Cranking Power Insufficient
E14
Generator attempts to start but controller shows E14 Starter Overcrank / Excessive Cranking.
Overcrank Protection
E15
Generator shuts down; controller displays E15 High Engine Temperature (Exhaust) or Exhaust Overtemp.
High Exhaust Temperature
E16
Generator shuts down; controller shows E16 Low Fuel Level Alarm / Shutdown.
Low Fuel Level Protection
E17
Generator shuts down; controller displays E17 High Fuel Level / Bund Alarm (for sets with day tank).
High Fuel Level / Bund Leak Detection
E18
Generator shuts down; controller shows E18 Earth Fault / Ground Fault.
Earth Leakage / Ground Fault Protection
E19
Generator shuts down; controller displays E19 Oil Temperature High.
High Engine Oil Temperature
E20
Generator shuts down; controller shows E20 CAN Communication Error (for CAN‑bus engines).
Engine ECU – Controller Communication Loss
E21
Generator shuts down; controller displays E21 Sensor Failure (Generic Analog Input Fault).
Analog Sensor Input Error
E22
Generator shuts down; controller shows E22 Frequency High.
Overfrequency Protection
E23
Generator shuts down; controller displays E23 Frequency Low.
Underfrequency Protection
E24
Generator shuts down; controller shows E24 Neutral Current High / Unbalanced Load.
High Neutral Current / Load Imbalance
E25
Generator shuts down; controller displays E25 Mains Failure Input Error (for standby with ATS).
Utility Sensing Fault
Symptom
Battery charger indicator off and battery gradually discharging between tests.
Battery Not Charging in Standby
Symptom
Control panel display is blank or intermittent, generator otherwise appears intact.
Controller Power Loss
Symptom
Coolant dripping under the generator or white residue around hoses and radiator.
Coolant Leak
Symptom
Fuel smell around the generator and visible diesel leakage under the base tank.
Fuel Leak
Symptom
Generator cranks but never fires; no error code displayed, controller shows normal start sequence.
No Start – Fuel Delivery Failure
Symptom
Generator enclosure or base frame vibrates excessively during operation.
Excessive Vibration
Symptom
Generator enclosure overheats inside; high ambient temperature around control panel and alternator.
Insufficient Ventilation / Cooling Airflow
Symptom
Generator fails to transfer load automatically during a mains failure, but can be started manually.
ATS / Auto Transfer Failure
Symptom
Generator frequency is consistently too high or too low but stable.
Incorrect Engine Speed Setting
Symptom
Generator is excessively noisy compared to normal operation.
Abnormal Mechanical Noise
Symptom
Generator output voltage is unstable or fluctuates under steady load.
Voltage Instability
Symptom
Generator runs but produces no voltage at the output terminals.
No Output – Loss of Excitation
Symptom
Generator starts but immediately stops after a few seconds with no specific code; controller logs generic shutdown.
Run‑Then‑Stop – Safety Circuit Opening
Symptom
Generator will not crank at all; controller appears powered but start command does nothing.
No Crank – Starter Circuit Fault
Symptom
Oil puddles forming under the generator or oil sprayed inside the enclosure.
Engine Oil Leak
Symptom
Strong exhaust smoke: black, blue, or white, during generator operation.
Abnormal Exhaust Smoke
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Generator will not start; controller shows E01 and immediately aborts cranking.
|
Emergency Stop Active / External Shutdown | View Details |
| E02 |
Generator shuts down shortly after start; controller displays E02 Low Oil Pressure.
|
Low Oil Pressure Shutdown | View Details |
| E03 |
Generator cranks but does not start; controller shows E03 Low Fuel Level or Fuel Supply Fault.
|
Low Fuel / Fuel Supply Interruption | View Details |
| E04 |
Generator shuts down during run; controller displays E04 High Engine Temperature.
|
High Coolant Temperature Shutdown | View Details |
| E05 |
Generator shuts down; controller shows E05 Low Coolant Level or Coolant Loss.
|
Low Coolant Level Shutdown | View Details |
| E06 |
Generator shuts down; controller displays E06 Overspeed.
|
Engine Overspeed Protection | View Details |
| E07 |
Generator shuts down during cranking or shortly after start; controller shows E07 Underspeed / Failure to Reach Rated Speed.
|
Engine Underspeed / Failure to Accelerate | View Details |
| E08 |
Generator shuts down; controller displays E08 Overvoltage.
|
Generator Output Overvoltage | View Details |
| E09 |
Generator shuts down; controller shows E09 Undervoltage.
|
Generator Output Undervoltage | View Details |
| E10 |
Generator shuts down; controller displays E10 Overcurrent / Overload.
|
Overcurrent Protection Trip | View Details |
| E11 |
Generator shuts down; controller shows E11 Phase Sequence / Reverse Phase.
|
Incorrect Phase Rotation | View Details |
| E12 |
Generator shuts down; controller displays E12 High Battery Voltage.
|
Battery Overvoltage / Charger Fault | View Details |
| E13 |
Generator fails to start; controller shows E13 Low Battery Voltage.
|
Low Battery / Cranking Power Insufficient | View Details |
| E14 |
Generator attempts to start but controller shows E14 Starter Overcrank / Excessive Cranking.
|
Overcrank Protection | View Details |
| E15 |
Generator shuts down; controller displays E15 High Engine Temperature (Exhaust) or Exhaust Overtemp.
|
High Exhaust Temperature | View Details |
| E16 |
Generator shuts down; controller shows E16 Low Fuel Level Alarm / Shutdown.
|
Low Fuel Level Protection | View Details |
| E17 |
Generator shuts down; controller displays E17 High Fuel Level / Bund Alarm (for sets with day tank).
|
High Fuel Level / Bund Leak Detection | View Details |
| E18 |
Generator shuts down; controller shows E18 Earth Fault / Ground Fault.
|
Earth Leakage / Ground Fault Protection | View Details |
| E19 |
Generator shuts down; controller displays E19 Oil Temperature High.
|
High Engine Oil Temperature | View Details |
| E20 |
Generator shuts down; controller shows E20 CAN Communication Error (for CAN‑bus engines).
|
Engine ECU – Controller Communication Loss | View Details |
| E21 |
Generator shuts down; controller displays E21 Sensor Failure (Generic Analog Input Fault).
|
Analog Sensor Input Error | View Details |
| E22 |
Generator shuts down; controller shows E22 Frequency High.
|
Overfrequency Protection | View Details |
| E23 |
Generator shuts down; controller displays E23 Frequency Low.
|
Underfrequency Protection | View Details |
| E24 |
Generator shuts down; controller shows E24 Neutral Current High / Unbalanced Load.
|
High Neutral Current / Load Imbalance | View Details |
| E25 |
Generator shuts down; controller displays E25 Mains Failure Input Error (for standby with ATS).
|
Utility Sensing Fault | View Details |
| – |
Battery charger indicator off and battery gradually discharging between tests.
|
Battery Not Charging in Standby | View Details |
| – |
Control panel display is blank or intermittent, generator otherwise appears intact.
|
Controller Power Loss | View Details |
| – |
Coolant dripping under the generator or white residue around hoses and radiator.
|
Coolant Leak | View Details |
| – |
Fuel smell around the generator and visible diesel leakage under the base tank.
|
Fuel Leak | View Details |
| – |
Generator cranks but never fires; no error code displayed, controller shows normal start sequence.
|
No Start – Fuel Delivery Failure | View Details |
| – |
Generator enclosure or base frame vibrates excessively during operation.
|
Excessive Vibration | View Details |
| – |
Generator enclosure overheats inside; high ambient temperature around control panel and alternator.
|
Insufficient Ventilation / Cooling Airflow | View Details |
| – |
Generator fails to transfer load automatically during a mains failure, but can be started manually.
|
ATS / Auto Transfer Failure | View Details |
| – |
Generator frequency is consistently too high or too low but stable.
|
Incorrect Engine Speed Setting | View Details |
| – |
Generator is excessively noisy compared to normal operation.
|
Abnormal Mechanical Noise | View Details |
| – |
Generator output voltage is unstable or fluctuates under steady load.
|
Voltage Instability | View Details |
| – |
Generator runs but produces no voltage at the output terminals.
|
No Output – Loss of Excitation | View Details |
| – |
Generator starts but immediately stops after a few seconds with no specific code; controller logs generic shutdown.
|
Run‑Then‑Stop – Safety Circuit Opening | View Details |
| – |
Generator will not crank at all; controller appears powered but start command does nothing.
|
No Crank – Starter Circuit Fault | View Details |
| – |
Oil puddles forming under the generator or oil sprayed inside the enclosure.
|
Engine Oil Leak | View Details |
| – |
Strong exhaust smoke: black, blue, or white, during generator operation.
|
Abnormal Exhaust Smoke | View Details |
No matching codes found
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