All Power America
All Power America Standby Generators Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
Advertisements
E01
Generator will not start in AUTO or MANUAL mode; control panel displays E01 immediately after a start attempt.
Low Oil Pressure Shutdown
E02
Generator cranks but does not start; display shows E02 after several attempts.
No Fuel / Fuel Supply Fault
E03
Generator attempts to start, fires briefly, then stalls; control panel shows E03.
Engine Overspeed / RPM Out of Range
E04
Generator shuts down shortly after starting; display shows E04 and the engine feels very hot.
High Engine Temperature Shutdown
E05
Generator will not crank; display shows E05 when attempting to start in AUTO or MANUAL.
Low Battery Voltage / Start Inhibit
E06
Generator cranks but does not fire; display shows E06 after the start cycle completes.
Ignition Failure / No Spark
E07
Generator starts but shuts down within a few seconds; display shows E07 and no AC output is present.
No AC Output / Generator Not Producing Voltage
E08
Generator runs but output voltage is too high or too low; display shows E08 and the unit may shut down under load.
Voltage Out of Range
E09
Generator shuts down and displays E09 when heavy loads are applied; may trip the internal breaker.
Overload Shutdown
E10
Generator will not start in AUTO mode; display shows E10 and the unit does not respond to utility power loss.
Remote Start / ATS Signal Fault
E11
Generator display shows E11 and the unit will not start; controller indicates an emergency stop condition.
Emergency Stop Activated / E-Stop Circuit Open
E12
Generator display shows E12 and the engine cranks continuously without starting until the controller times out.
Crank Timeout / Failed Start
E13
Generator display shows E13 and the unit shuts down randomly during operation without obvious cause.
Controller Internal Fault
E14
Generator display shows E14 and the unit will not start; controller indicates a fuel solenoid or gas valve fault.
Fuel Solenoid / Gas Valve Circuit Fault
E15
Generator display shows E15 and the unit shuts down; controller indicates a low frequency or underspeed condition.
Engine Underspeed / Low Frequency
E16
Generator display shows E16 and the unit will not start; controller indicates a low oil level sensor fault rather than low pressure.
Low Oil Level Sensor Fault
E17
Generator display shows E17 and the unit shuts down; controller indicates a high AC frequency or overspeed condition.
High Frequency / Overspeed
E18
Generator display shows E18 and the unit will not start; controller indicates a neutral or ground fault.
Ground Fault / Neutral Sensing Error
E19
Generator display shows E19 and the unit shuts down; controller indicates a phase imbalance or single-phasing condition (for 3-phase models).
Phase Imbalance / Loss of Phase
E20
Generator display shows E20 and the unit will not start; controller indicates a sensor supply or 5V reference fault.
Sensor Power Supply Failure
Symptom
Generator control panel display is dim, flickering, or unreadable, but the unit still runs.
Display Module Degradation
Symptom
Generator control panel is completely dead; no display, no LEDs, and no response to buttons.
No Control Power
Symptom
Generator cranks slowly or not at all; no error code displayed, panel may dim during crank attempt.
Weak or Failing Starter Motor
Symptom
Generator emits black smoke from the exhaust and runs rough, especially under load.
Rich Fuel Mixture
Symptom
Generator emits visible blue or white smoke from the exhaust during operation.
Oil Burning / Incomplete Combustion
Symptom
Generator enclosure is hot to the touch and internal components show signs of heat stress, but no over-temperature code is displayed.
Inadequate Ventilation / Cooling Airflow Restriction
Symptom
Generator fails to perform its scheduled weekly exercise run; no codes are displayed.
Exercise Timer / Scheduler Malfunction
Symptom
Generator runs but is excessively noisy with metallic knocking or rattling sounds from the engine compartment.
Engine Mechanical Knock / Loose Components
Symptom
Generator runs but output voltage sags significantly when loads are applied, causing lights to dim.
Voltage Sag Under Load
Symptom
Generator runs but the battery repeatedly goes dead between exercise cycles.
Battery Not Charging During Operation
Symptom
Generator runs but there is a loud hissing sound and possible exhaust leak near the engine.
Exhaust Leak
Symptom
Generator runs but there is no power at the house; lights and appliances remain off even though the generator sounds normal.
Transfer Switch Not Engaging
Symptom
Generator starts and runs but frequently stalls when large appliances (like air conditioners) start.
Load Step Response / Insufficient Capacity
Symptom
Generator starts and runs but produces a strong fuel smell around the enclosure; no error code is shown.
Fuel Leak / Carburetor Flooding
Symptom
Generator starts and then immediately stops when the start button is released; no code is stored.
Run Relay / Hold-In Circuit Failure
Symptom
Generator vibrates excessively during operation, causing the enclosure to shake and nearby structures to rattle.
Excessive Vibration / Imbalance
Symptom
Generator will not start in cold weather; engine cranks but fails to fire, with no specific error code.
Cold Start Difficulty
Symptom
Rodents or insects are found inside the generator, with chewed wires and nests present.
Rodent / Pest Damage
Symptom
Water or moisture is found inside the generator enclosure; corrosion is visible on components.
Water Ingress / Enclosure Seal Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Generator will not start in AUTO or MANUAL mode; control panel displays E01 immediately after a start attempt.
|
Low Oil Pressure Shutdown | View Details |
| E02 |
Generator cranks but does not start; display shows E02 after several attempts.
|
No Fuel / Fuel Supply Fault | View Details |
| E03 |
Generator attempts to start, fires briefly, then stalls; control panel shows E03.
|
Engine Overspeed / RPM Out of Range | View Details |
| E04 |
Generator shuts down shortly after starting; display shows E04 and the engine feels very hot.
|
High Engine Temperature Shutdown | View Details |
| E05 |
Generator will not crank; display shows E05 when attempting to start in AUTO or MANUAL.
|
Low Battery Voltage / Start Inhibit | View Details |
| E06 |
Generator cranks but does not fire; display shows E06 after the start cycle completes.
|
Ignition Failure / No Spark | View Details |
| E07 |
Generator starts but shuts down within a few seconds; display shows E07 and no AC output is present.
|
No AC Output / Generator Not Producing Voltage | View Details |
| E08 |
Generator runs but output voltage is too high or too low; display shows E08 and the unit may shut down under load.
|
Voltage Out of Range | View Details |
| E09 |
Generator shuts down and displays E09 when heavy loads are applied; may trip the internal breaker.
|
Overload Shutdown | View Details |
| E10 |
Generator will not start in AUTO mode; display shows E10 and the unit does not respond to utility power loss.
|
Remote Start / ATS Signal Fault | View Details |
| E11 |
Generator display shows E11 and the unit will not start; controller indicates an emergency stop condition.
|
Emergency Stop Activated / E-Stop Circuit Open | View Details |
| E12 |
Generator display shows E12 and the engine cranks continuously without starting until the controller times out.
|
Crank Timeout / Failed Start | View Details |
| E13 |
Generator display shows E13 and the unit shuts down randomly during operation without obvious cause.
|
Controller Internal Fault | View Details |
| E14 |
Generator display shows E14 and the unit will not start; controller indicates a fuel solenoid or gas valve fault.
|
Fuel Solenoid / Gas Valve Circuit Fault | View Details |
| E15 |
Generator display shows E15 and the unit shuts down; controller indicates a low frequency or underspeed condition.
|
Engine Underspeed / Low Frequency | View Details |
| E16 |
Generator display shows E16 and the unit will not start; controller indicates a low oil level sensor fault rather than low pressure.
|
Low Oil Level Sensor Fault | View Details |
| E17 |
Generator display shows E17 and the unit shuts down; controller indicates a high AC frequency or overspeed condition.
|
High Frequency / Overspeed | View Details |
| E18 |
Generator display shows E18 and the unit will not start; controller indicates a neutral or ground fault.
|
Ground Fault / Neutral Sensing Error | View Details |
| E19 |
Generator display shows E19 and the unit shuts down; controller indicates a phase imbalance or single-phasing condition (for 3-phase models).
|
Phase Imbalance / Loss of Phase | View Details |
| E20 |
Generator display shows E20 and the unit will not start; controller indicates a sensor supply or 5V reference fault.
|
Sensor Power Supply Failure | View Details |
| – |
Generator control panel display is dim, flickering, or unreadable, but the unit still runs.
|
Display Module Degradation | View Details |
| – |
Generator control panel is completely dead; no display, no LEDs, and no response to buttons.
|
No Control Power | View Details |
| – |
Generator cranks slowly or not at all; no error code displayed, panel may dim during crank attempt.
|
Weak or Failing Starter Motor | View Details |
| – |
Generator emits black smoke from the exhaust and runs rough, especially under load.
|
Rich Fuel Mixture | View Details |
| – |
Generator emits visible blue or white smoke from the exhaust during operation.
|
Oil Burning / Incomplete Combustion | View Details |
| – |
Generator enclosure is hot to the touch and internal components show signs of heat stress, but no over-temperature code is displayed.
|
Inadequate Ventilation / Cooling Airflow Restriction | View Details |
| – |
Generator fails to perform its scheduled weekly exercise run; no codes are displayed.
|
Exercise Timer / Scheduler Malfunction | View Details |
| – |
Generator runs but is excessively noisy with metallic knocking or rattling sounds from the engine compartment.
|
Engine Mechanical Knock / Loose Components | View Details |
| – |
Generator runs but output voltage sags significantly when loads are applied, causing lights to dim.
|
Voltage Sag Under Load | View Details |
| – |
Generator runs but the battery repeatedly goes dead between exercise cycles.
|
Battery Not Charging During Operation | View Details |
| – |
Generator runs but there is a loud hissing sound and possible exhaust leak near the engine.
|
Exhaust Leak | View Details |
| – |
Generator runs but there is no power at the house; lights and appliances remain off even though the generator sounds normal.
|
Transfer Switch Not Engaging | View Details |
| – |
Generator starts and runs but frequently stalls when large appliances (like air conditioners) start.
|
Load Step Response / Insufficient Capacity | View Details |
| – |
Generator starts and runs but produces a strong fuel smell around the enclosure; no error code is shown.
|
Fuel Leak / Carburetor Flooding | View Details |
| – |
Generator starts and then immediately stops when the start button is released; no code is stored.
|
Run Relay / Hold-In Circuit Failure | View Details |
| – |
Generator vibrates excessively during operation, causing the enclosure to shake and nearby structures to rattle.
|
Excessive Vibration / Imbalance | View Details |
| – |
Generator will not start in cold weather; engine cranks but fails to fire, with no specific error code.
|
Cold Start Difficulty | View Details |
| – |
Rodents or insects are found inside the generator, with chewed wires and nests present.
|
Rodent / Pest Damage | View Details |
| – |
Water or moisture is found inside the generator enclosure; corrosion is visible on components.
|
Water Ingress / Enclosure Seal Failure | View Details |
No matching codes found
Advertisements