Hyundai Power
Hyundai Power 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
The generator will not start in AUTO mode and displays E01 on the controller screen.
Auto Start Failure
E02
The generator cranks but fails to start, and E02 is displayed on the controller.
Failed Start / No Ignition
E03
The generator shuts down shortly after starting and displays E03 on the controller.
Low Oil Pressure Shutdown
E04
The controller shows E04, and the generator will not crank.
Emergency Stop or Remote Stop Active
E05
Generator shuts down and displays E05 after running for a short period under load.
High Engine Temperature / Overheat
E06
Controller displays E06 and the generator shuts down immediately after start.
Overspeed Shutdown
E07
Generator shuts down and E07 is shown on the display during cranking or early run.
Underspeed / Failure to Reach Rated Frequency
E08
Controller shows E08 and the generator will not start or shuts down.
Low Battery Voltage Alarm
E09
Generator runs but the controller displays E09 and may shut down under load.
High Battery Voltage Alarm
E10
Controller shows E10 and the generator will not start.
Fuel Level Low / Fuel Sensor Alarm
E11
Generator shuts down and E11 is displayed when load is applied.
Overload / Overcurrent Protection Trip
E12
Controller shows E12 and the generator will not connect to load.
Under Voltage Protection
E13
Generator shuts down and E13 is displayed during operation.
Over Voltage Protection
E14
Controller displays E14 and the generator will not start or shuts down.
Phase Sequence / Phase Rotation Error
E15
Generator runs, but E15 is displayed, and the unit may not transfer load.
Frequency Out of Range
E16
Controller shows E16, and the generator will not start.
CAN Bus / Communication Error
E17
Generator shuts down, and E17 is displayed after several minutes of running.
Low Fuel Pressure / Fuel Supply Fault
E18
Controller displays E18, and the generator will not crank.
Starter Lockout / Excessive Crank Attempts
E19
Generator runs, but E19 is displayed, and the unit may derate or shut down.
Intake Air Temperature High
E20
Controller shows E20, and the generator will not start or shuts down.
Exhaust Temperature High
Symptom
A noticeable coolant leak is present under or around the generator; no code is displayed yet, but the coolant level is dropping.
Coolant System Leak
Symptom
A strong burning smell or smoke is coming from the alternator area; the generator may still be running.
Alternator Overheating / Insulation Smell
Symptom
A strong fuel smell is present around the generator during or after operation; there is no visible leak and no code is displayed.
Fuel Odor Without Visible Leak
Symptom
Controller display is blank or unreadable, but generator may still run or crank.
Display / HMI Failure
Symptom
Corrosion and rust visible on battery terminals, frame, and electrical connectors inside the enclosure.
Corrosion / Environmental Damage
Symptom
Generator cranks but does not start; no error code is displayed on the controller.
No-Start Condition Without Fault Code
Symptom
Generator fails to shut down after utility power is restored; continues running in AUTO.
Failure to Stop / Return to Utility
Symptom
Generator is leaking fuel from around the base or fuel lines; no code is displayed.
External Fuel Leak
Symptom
Generator runs but produces no AC output; the controller shows normal run status with no error code.
No AC Output Without Alarm
Symptom
Generator starts but immediately stalls when load is applied; no code is shown.
Engine Stalls Under Load
Symptom
The automatic transfer switch (ATS) does not transfer the load to the generator during an outage; the generator runs normally.
ATS Fails to Transfer
Symptom
The generator is leaking engine oil onto the base pan or ground; no code is displayed.
External Oil Leak
Symptom
The generator produces excessive mechanical noise or knocking during operation; no error code is displayed.
Abnormal Engine Noise
Symptom
The generator runs, but lights flicker and sensitive electronics reset or behave erratically.
Unstable Voltage / Flicker
Symptom
The generator starts and stops repeatedly in short cycles without stabilizing; no specific error code is displayed.
Hunting / Surging Start-Stop Cycle
Symptom
The generator vibrates excessively, causing the enclosure to rattle; no code is displayed.
Excessive Vibration
Symptom
The generator will not switch to AUTO mode or does not respond to the AUTO command; no error code is displayed.
AUTO Mode / Remote Start Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
The generator will not start in AUTO mode and displays E01 on the controller screen.
|
Auto Start Failure | View Details |
| E02 |
The generator cranks but fails to start, and E02 is displayed on the controller.
|
Failed Start / No Ignition | View Details |
| E03 |
The generator shuts down shortly after starting and displays E03 on the controller.
|
Low Oil Pressure Shutdown | View Details |
| E04 |
The controller shows E04, and the generator will not crank.
|
Emergency Stop or Remote Stop Active | View Details |
| E05 |
Generator shuts down and displays E05 after running for a short period under load.
|
High Engine Temperature / Overheat | View Details |
| E06 |
Controller displays E06 and the generator shuts down immediately after start.
|
Overspeed Shutdown | View Details |
| E07 |
Generator shuts down and E07 is shown on the display during cranking or early run.
|
Underspeed / Failure to Reach Rated Frequency | View Details |
| E08 |
Controller shows E08 and the generator will not start or shuts down.
|
Low Battery Voltage Alarm | View Details |
| E09 |
Generator runs but the controller displays E09 and may shut down under load.
|
High Battery Voltage Alarm | View Details |
| E10 |
Controller shows E10 and the generator will not start.
|
Fuel Level Low / Fuel Sensor Alarm | View Details |
| E11 |
Generator shuts down and E11 is displayed when load is applied.
|
Overload / Overcurrent Protection Trip | View Details |
| E12 |
Controller shows E12 and the generator will not connect to load.
|
Under Voltage Protection | View Details |
| E13 |
Generator shuts down and E13 is displayed during operation.
|
Over Voltage Protection | View Details |
| E14 |
Controller displays E14 and the generator will not start or shuts down.
|
Phase Sequence / Phase Rotation Error | View Details |
| E15 |
Generator runs, but E15 is displayed, and the unit may not transfer load.
|
Frequency Out of Range | View Details |
| E16 |
Controller shows E16, and the generator will not start.
|
CAN Bus / Communication Error | View Details |
| E17 |
Generator shuts down, and E17 is displayed after several minutes of running.
|
Low Fuel Pressure / Fuel Supply Fault | View Details |
| E18 |
Controller displays E18, and the generator will not crank.
|
Starter Lockout / Excessive Crank Attempts | View Details |
| E19 |
Generator runs, but E19 is displayed, and the unit may derate or shut down.
|
Intake Air Temperature High | View Details |
| E20 |
Controller shows E20, and the generator will not start or shuts down.
|
Exhaust Temperature High | View Details |
| – |
A noticeable coolant leak is present under or around the generator; no code is displayed yet, but the coolant level is dropping.
|
Coolant System Leak | View Details |
| – |
A strong burning smell or smoke is coming from the alternator area; the generator may still be running.
|
Alternator Overheating / Insulation Smell | View Details |
| – |
A strong fuel smell is present around the generator during or after operation; there is no visible leak and no code is displayed.
|
Fuel Odor Without Visible Leak | View Details |
| – |
Controller display is blank or unreadable, but generator may still run or crank.
|
Display / HMI Failure | View Details |
| – |
Corrosion and rust visible on battery terminals, frame, and electrical connectors inside the enclosure.
|
Corrosion / Environmental Damage | View Details |
| – |
Generator cranks but does not start; no error code is displayed on the controller.
|
No-Start Condition Without Fault Code | View Details |
| – |
Generator fails to shut down after utility power is restored; continues running in AUTO.
|
Failure to Stop / Return to Utility | View Details |
| – |
Generator is leaking fuel from around the base or fuel lines; no code is displayed.
|
External Fuel Leak | View Details |
| – |
Generator runs but produces no AC output; the controller shows normal run status with no error code.
|
No AC Output Without Alarm | View Details |
| – |
Generator starts but immediately stalls when load is applied; no code is shown.
|
Engine Stalls Under Load | View Details |
| – |
The automatic transfer switch (ATS) does not transfer the load to the generator during an outage; the generator runs normally.
|
ATS Fails to Transfer | View Details |
| – |
The generator is leaking engine oil onto the base pan or ground; no code is displayed.
|
External Oil Leak | View Details |
| – |
The generator produces excessive mechanical noise or knocking during operation; no error code is displayed.
|
Abnormal Engine Noise | View Details |
| – |
The generator runs, but lights flicker and sensitive electronics reset or behave erratically.
|
Unstable Voltage / Flicker | View Details |
| – |
The generator starts and stops repeatedly in short cycles without stabilizing; no specific error code is displayed.
|
Hunting / Surging Start-Stop Cycle | View Details |
| – |
The generator vibrates excessively, causing the enclosure to rattle; no code is displayed.
|
Excessive Vibration | View Details |
| – |
The generator will not switch to AUTO mode or does not respond to the AUTO command; no error code is displayed.
|
AUTO Mode / Remote Start Failure | View Details |
No matching codes found
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