Genergy
Genergy 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 or MANUAL mode; control panel shows E01 immediately after a start attempt.
Low Oil Pressure Lockout
E02
Generator cranks but does not start; control panel displays E02 after several attempts.
No Fuel / Fuel Supply Fault
E03
Generator starts then shuts down within a few seconds; E03 is shown on the Genergy controller display.
Overspeed Protection Trip
E04
Generator shuts down during operation and displays E04; may occur when large loads are applied.
Underspeed / Underfrequency Fault
E05
Control panel shows E05 and the generator will not crank; no starter noise is heard.
Low Battery Voltage / Battery Charger Fault
E06
Generator attempts to crank but stops; E06 appears on the display, often accompanied by a clicking sound.
Starter Motor / Cranking Fault
E07
Generator shuts down shortly after start; E07 is displayed and the engine feels very hot or the enclosure is unusually warm.
High Engine Temperature / Overheat Shutdown
E08
Generator shuts down and displays E08; may be accompanied by visible smoke or strong fuel smell from the exhaust.
High Exhaust Temperature / Exhaust Overheat
E09
Generator runs but the control panel shows E09 and the unit may shut down when loads are applied.
Low AC Output Voltage
E10
Generator shuts down and displays E10; may occur when loads are disconnected or during light load operation.
High AC Output Voltage
E11
Control panel shows E11 and the generator will not start automatically when utility power fails.
Utility Sensing / Mains Failure Detection Fault
E12
Generator does not transfer load when running; E12 is displayed indicating transfer switch fault.
ATS (Automatic Transfer Switch) Communication / Position Fault
E13
Generator shuts down and displays E13; may be accompanied by a strong fuel odor around the unit.
Gas Leak / Fuel Pressure Safety Fault
E14
Generator shuts down with E14; controller indicates oil temperature or combined oil/coolant temperature fault.
High Oil Temperature / Lubrication Overheat
E15
Generator shuts down and displays E15; controller logs indicate low fuel pressure or starvation during operation.
Low Fuel Pressure Under Load
E16
Generator will not start; E16 indicates an emergency stop or remote stop condition.
Emergency Stop Circuit Active
E17
Generator shuts down and displays E17; controller indicates phase imbalance or single‑phasing.
Phase Loss / Phase Imbalance Fault
E18
Generator shuts down with E18; controller log shows ground fault or earth leakage alarm.
Ground Fault / Earth Leakage Protection Trip
E19
Generator fails to start and displays E19; controller indicates crank time exceeded or over‑crank.
Over‑Crank / Failed Start Lockout
E20
Generator runs but E20 is displayed; controller indicates low frequency (Hz) under load.
Underfrequency Under Load
E21
Generator shuts down with E21; controller indicates high frequency (Hz) condition.
Overfrequency Fault
E22
Generator displays E22; controller indicates CAN bus or internal communication error.
Controller Communication / CAN Bus Fault
E23
Generator displays E23; controller indicates sensor supply or analog input fault.
Sensor Power Supply / Analog Input Fault
E24
Generator displays E24; controller indicates memory or configuration error.
Controller Configuration / EEPROM Fault
E25
Generator displays E25; controller indicates service interval exceeded or maintenance required.
Scheduled Maintenance Reminder
Symptom
Corrosion, rust, or water pooling is visible inside the Genergy generator enclosure.
Moisture Ingress / Environmental Damage
Symptom
Generator battery repeatedly goes dead between exercise cycles or outages.
Chronic Battery Discharge
Symptom
Generator fails its weekly exercise test; it may not start or may shut down during the test without a clear code.
Exercise Cycle Failure
Symptom
Generator fails to start automatically during a power outage, but starts normally in MANUAL mode.
Auto Start / Remote Start Failure
Symptom
Generator is excessively loud or has developed a new knocking, rattling, or grinding noise during operation.
Abnormal Mechanical Noise / Vibration
Symptom
Generator output frequency is consistently low or high (e.g., 47–48 Hz or 62–63 Hz) but the unit does not shut down.
Frequency Out of Specification
Symptom
Generator output voltage fluctuates noticeably, causing lights to flicker when running on generator power.
Unstable Voltage Regulation
Symptom
Generator runs but produces no AC power at the house; lights and appliances remain off even though the engine is running.
No Output / Open Main Breaker or Failed Alternator
Symptom
Generator starts and runs but then shuts down after a few minutes with no code, or only a generic alarm indicator.
Intermittent Shutdown / Thermal or Vibration‑Induced Fault
Symptom
Generator starts and then stalls when large appliances (such as air conditioners or pumps) turn on.
Load‑Induced Stalling / Overload
Symptom
Generator vibrates excessively, causing the enclosure to shake and nearby structures to rattle.
Excessive Vibration / Imbalance
Symptom
Strong fuel smell around the generator during or after operation, but no specific error code is displayed.
Fuel Odor / Minor Gas Leak
Symptom
Visible oil leak under or around the Genergy standby generator enclosure.
Engine Oil Leak
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Generator will not start in AUTO or MANUAL mode; control panel shows E01 immediately after a start attempt.
|
Low Oil Pressure Lockout | View Details |
| E02 |
Generator cranks but does not start; control panel displays E02 after several attempts.
|
No Fuel / Fuel Supply Fault | View Details |
| E03 |
Generator starts then shuts down within a few seconds; E03 is shown on the Genergy controller display.
|
Overspeed Protection Trip | View Details |
| E04 |
Generator shuts down during operation and displays E04; may occur when large loads are applied.
|
Underspeed / Underfrequency Fault | View Details |
| E05 |
Control panel shows E05 and the generator will not crank; no starter noise is heard.
|
Low Battery Voltage / Battery Charger Fault | View Details |
| E06 |
Generator attempts to crank but stops; E06 appears on the display, often accompanied by a clicking sound.
|
Starter Motor / Cranking Fault | View Details |
| E07 |
Generator shuts down shortly after start; E07 is displayed and the engine feels very hot or the enclosure is unusually warm.
|
High Engine Temperature / Overheat Shutdown | View Details |
| E08 |
Generator shuts down and displays E08; may be accompanied by visible smoke or strong fuel smell from the exhaust.
|
High Exhaust Temperature / Exhaust Overheat | View Details |
| E09 |
Generator runs but the control panel shows E09 and the unit may shut down when loads are applied.
|
Low AC Output Voltage | View Details |
| E10 |
Generator shuts down and displays E10; may occur when loads are disconnected or during light load operation.
|
High AC Output Voltage | View Details |
| E11 |
Control panel shows E11 and the generator will not start automatically when utility power fails.
|
Utility Sensing / Mains Failure Detection Fault | View Details |
| E12 |
Generator does not transfer load when running; E12 is displayed indicating transfer switch fault.
|
ATS (Automatic Transfer Switch) Communication / Position Fault | View Details |
| E13 |
Generator shuts down and displays E13; may be accompanied by a strong fuel odor around the unit.
|
Gas Leak / Fuel Pressure Safety Fault | View Details |
| E14 |
Generator shuts down with E14; controller indicates oil temperature or combined oil/coolant temperature fault.
|
High Oil Temperature / Lubrication Overheat | View Details |
| E15 |
Generator shuts down and displays E15; controller logs indicate low fuel pressure or starvation during operation.
|
Low Fuel Pressure Under Load | View Details |
| E16 |
Generator will not start; E16 indicates an emergency stop or remote stop condition.
|
Emergency Stop Circuit Active | View Details |
| E17 |
Generator shuts down and displays E17; controller indicates phase imbalance or single‑phasing.
|
Phase Loss / Phase Imbalance Fault | View Details |
| E18 |
Generator shuts down with E18; controller log shows ground fault or earth leakage alarm.
|
Ground Fault / Earth Leakage Protection Trip | View Details |
| E19 |
Generator fails to start and displays E19; controller indicates crank time exceeded or over‑crank.
|
Over‑Crank / Failed Start Lockout | View Details |
| E20 |
Generator runs but E20 is displayed; controller indicates low frequency (Hz) under load.
|
Underfrequency Under Load | View Details |
| E21 |
Generator shuts down with E21; controller indicates high frequency (Hz) condition.
|
Overfrequency Fault | View Details |
| E22 |
Generator displays E22; controller indicates CAN bus or internal communication error.
|
Controller Communication / CAN Bus Fault | View Details |
| E23 |
Generator displays E23; controller indicates sensor supply or analog input fault.
|
Sensor Power Supply / Analog Input Fault | View Details |
| E24 |
Generator displays E24; controller indicates memory or configuration error.
|
Controller Configuration / EEPROM Fault | View Details |
| E25 |
Generator displays E25; controller indicates service interval exceeded or maintenance required.
|
Scheduled Maintenance Reminder | View Details |
| – |
Corrosion, rust, or water pooling is visible inside the Genergy generator enclosure.
|
Moisture Ingress / Environmental Damage | View Details |
| – |
Generator battery repeatedly goes dead between exercise cycles or outages.
|
Chronic Battery Discharge | View Details |
| – |
Generator fails its weekly exercise test; it may not start or may shut down during the test without a clear code.
|
Exercise Cycle Failure | View Details |
| – |
Generator fails to start automatically during a power outage, but starts normally in MANUAL mode.
|
Auto Start / Remote Start Failure | View Details |
| – |
Generator is excessively loud or has developed a new knocking, rattling, or grinding noise during operation.
|
Abnormal Mechanical Noise / Vibration | View Details |
| – |
Generator output frequency is consistently low or high (e.g., 47–48 Hz or 62–63 Hz) but the unit does not shut down.
|
Frequency Out of Specification | View Details |
| – |
Generator output voltage fluctuates noticeably, causing lights to flicker when running on generator power.
|
Unstable Voltage Regulation | View Details |
| – |
Generator runs but produces no AC power at the house; lights and appliances remain off even though the engine is running.
|
No Output / Open Main Breaker or Failed Alternator | View Details |
| – |
Generator starts and runs but then shuts down after a few minutes with no code, or only a generic alarm indicator.
|
Intermittent Shutdown / Thermal or Vibration‑Induced Fault | View Details |
| – |
Generator starts and then stalls when large appliances (such as air conditioners or pumps) turn on.
|
Load‑Induced Stalling / Overload | View Details |
| – |
Generator vibrates excessively, causing the enclosure to shake and nearby structures to rattle.
|
Excessive Vibration / Imbalance | View Details |
| – |
Strong fuel smell around the generator during or after operation, but no specific error code is displayed.
|
Fuel Odor / Minor Gas Leak | View Details |
| – |
Visible oil leak under or around the Genergy standby generator enclosure.
|
Engine Oil Leak | View Details |
No matching codes found
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