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
Generator will not start in AUTO mode and displays E01 on the controller screen.
Auto Start Failure
E02
Generator cranks but fails to start and E02 is displayed on the controller.
Failed Start / No Ignition
E03
Generator shuts down shortly after starting and displays E03 on the controller.
Low Oil Pressure Shutdown
E04
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
Automatic transfer switch (ATS) does not transfer load to generator during outage; generator runs normally.
ATS Fails to Transfer
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 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 engine oil onto the base pan or ground; no code displayed.
External Oil Leak
Symptom
Generator is leaking fuel from around the base or fuel lines; no code displayed.
External Fuel Leak
Symptom
Generator produces excessive mechanical noise or knocking during operation; no error code.
Abnormal Engine Noise
Symptom
Generator runs but lights flicker and sensitive electronics reset or behave erratically.
Unstable Voltage / Flicker
Symptom
Generator runs but produces no AC output; controller shows normal run status with no error code.
No AC Output Without Alarm
Symptom
Generator starts and stops repeatedly in short cycles without stabilizing; no specific error code.
Hunting / Surging Start-Stop Cycle
Symptom
Generator starts but immediately stalls when load is applied; no code shown.
Engine Stalls Under Load
Symptom
Generator vibrates excessively, causing the enclosure to rattle; no code displayed.
Excessive Vibration
Symptom
Generator will not switch to AUTO mode or does not respond to AUTO command; no error code.
AUTO Mode / Remote Start Failure
Symptom
Noticeable coolant leak under or around the generator; no code yet but coolant level drops.
Coolant System Leak
Symptom
Strong burning smell or smoke from the alternator area; generator may still be running.
Alternator Overheating / Insulation Smell
Symptom
Strong fuel smell around the generator during or after operation; no visible leak and no code.
Fuel Odor Without Visible Leak
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Generator will not start in AUTO mode and displays E01 on the controller screen.
|
Auto Start Failure | View Details |
| E02 |
Generator cranks but fails to start and E02 is displayed on the controller.
|
Failed Start / No Ignition | View Details |
| E03 |
Generator shuts down shortly after starting and displays E03 on the controller.
|
Low Oil Pressure Shutdown | View Details |
| E04 |
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 |
| – |
Automatic transfer switch (ATS) does not transfer load to generator during outage; generator runs normally.
|
ATS Fails to Transfer | 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 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 engine oil onto the base pan or ground; no code displayed.
|
External Oil Leak | View Details |
| – |
Generator is leaking fuel from around the base or fuel lines; no code displayed.
|
External Fuel Leak | View Details |
| – |
Generator produces excessive mechanical noise or knocking during operation; no error code.
|
Abnormal Engine Noise | View Details |
| – |
Generator runs but lights flicker and sensitive electronics reset or behave erratically.
|
Unstable Voltage / Flicker | View Details |
| – |
Generator runs but produces no AC output; controller shows normal run status with no error code.
|
No AC Output Without Alarm | View Details |
| – |
Generator starts and stops repeatedly in short cycles without stabilizing; no specific error code.
|
Hunting / Surging Start-Stop Cycle | View Details |
| – |
Generator starts but immediately stalls when load is applied; no code shown.
|
Engine Stalls Under Load | View Details |
| – |
Generator vibrates excessively, causing the enclosure to rattle; no code displayed.
|
Excessive Vibration | View Details |
| – |
Generator will not switch to AUTO mode or does not respond to AUTO command; no error code.
|
AUTO Mode / Remote Start Failure | View Details |
| – |
Noticeable coolant leak under or around the generator; no code yet but coolant level drops.
|
Coolant System Leak | View Details |
| – |
Strong burning smell or smoke from the alternator area; generator may still be running.
|
Alternator Overheating / Insulation Smell | View Details |
| – |
Strong fuel smell around the generator during or after operation; no visible leak and no code.
|
Fuel Odor Without Visible Leak | View Details |
No matching codes found
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