Multiquip
Multiquip 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; the controller displays E01 immediately after a crank attempt.
Low Oil Pressure Lockout
E02
Generator shuts down shortly after starting; the controller shows E02.
High Engine Temperature Shutdown
E03
Generator cranks but will not start; the controller displays E03.
Low Fuel Pressure / Fuel Supply Fault
E04
Generator shuts down during operation; the controller shows E04.
Overspeed Shutdown
E05
Generator shuts down; the controller displays E05, and the engine stops abruptly.
Underspeed / Engine Stall Fault
E06
The controller shows E06, and the generator will not crank.
Low Battery Voltage / Battery Fault
E07
The controller displays E07; the generator does not start or shuts down during cranking.
Starter Circuit Fault
E08
Generator runs, but the controller shows E08, and no AC power is delivered to the load.
No AC Output / Alternator Fault
E09
Controller shows E09, generator shuts down, and will not carry load.
Overvoltage Protection Trip
E10
Controller displays E10, generator shuts down under load.
Undervoltage Protection Trip
E11
Controller shows E11, generator shuts down, and will not restart until the code is cleared.
Overcurrent / Output Breaker Trip
E12
Controller displays E12, generator will not start in AUTO mode.
Emergency Stop / Remote Stop Active
E13
Controller shows E13, generator shuts down shortly after start.
Low Coolant Level / Coolant Sensor Fault
E14
Controller displays E14, generator will not start or shuts down during the crank cycle.
Crank Timeout / Failed to Start
E15
Controller shows E15, generator shuts down during run.
Fuel Level Low / Fuel Leak Detected
E16
Controller displays E16, generator shuts down immediately after start.
Phase Rotation / Frequency Error
E17
Controller shows E17, generator remains running, but the alarm is active.
High Engine Temperature Warning (Pre‑Alarm)
E18
Controller displays E18, generator shuts down, and cannot be restarted until the fault is cleared.
Low Oil Level / Oil Level Switch Fault
E19
Controller shows E19; generator shuts down during operation with no obvious mechanical issue.
Controller Internal Fault / Memory Error
E20
Controller displays E20; generator will not start in AUTO when utility fails.
ATS Communication / Start Signal Fault
Symptom
Battery repeatedly goes dead between exercise cycles
Chronic Battery Discharge
Symptom
Controller display is blank or intermittent, generator otherwise appears functional
Controller Power / Display Issue
Symptom
Corrosion visible on terminals and metal parts inside generator enclosure
Corrosion and Environmental Damage
Symptom
Excessive white or blue smoke from exhaust during operation
Abnormal Exhaust Smoke
Symptom
Fuel odor around generator enclosure, visible fuel drips under the unit.
Fuel Leak
Symptom
Generator cranks normally but will not start; no error code displayed.
General No-Start Condition
Symptom
Generator enclosure interior is wet or shows signs of water ingress after rain
Water Ingress into Enclosure
Symptom
Generator fails to start automatically during scheduled exercise, but starts manually
Exercise Timer / Auto Start Configuration Issue
Symptom
Generator frequency is consistently high or low under all loads
Incorrect Engine Speed Setting
Symptom
Generator is excessively noisy during operation compared to normal.
Abnormal Mechanical Noise
Symptom
Generator is running but ATS does not transfer load to generator.
No Load Transfer from ATS
Symptom
Generator output breaker trips when large motor loads start
Nuisance Breaker Trip on Motor Starting
Symptom
Generator runs but produces low or fluctuating voltage; no specific error code.
Unstable Voltage Output
Symptom
Generator shuts down when enclosure doors are closed but runs with doors open
Overheating or Airflow Restriction with Doors Closed
Symptom
Generator starts and stops repeatedly in short cycles without load changes
Nuisance Start/Stop Cycling
Symptom
Generator starts then stalls after a few seconds; no code shown.
Run-Then-Stall Fuel Delivery Issue
Symptom
Generator vibrates excessively during operation, causing the enclosure to shake.
Excessive Vibration
Symptom
Strong exhaust fumes or heat felt inside nearby building when generator runs
Exhaust Fume Intrusion
Symptom
Visible coolant puddle under the generator or strong coolant smell.
Coolant Leak
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Generator will not start; the controller displays E01 immediately after a crank attempt.
|
Low Oil Pressure Lockout | View Details |
| E02 |
Generator shuts down shortly after starting; the controller shows E02.
|
High Engine Temperature Shutdown | View Details |
| E03 |
Generator cranks but will not start; the controller displays E03.
|
Low Fuel Pressure / Fuel Supply Fault | View Details |
| E04 |
Generator shuts down during operation; the controller shows E04.
|
Overspeed Shutdown | View Details |
| E05 |
Generator shuts down; the controller displays E05, and the engine stops abruptly.
|
Underspeed / Engine Stall Fault | View Details |
| E06 |
The controller shows E06, and the generator will not crank.
|
Low Battery Voltage / Battery Fault | View Details |
| E07 |
The controller displays E07; the generator does not start or shuts down during cranking.
|
Starter Circuit Fault | View Details |
| E08 |
Generator runs, but the controller shows E08, and no AC power is delivered to the load.
|
No AC Output / Alternator Fault | View Details |
| E09 |
Controller shows E09, generator shuts down, and will not carry load.
|
Overvoltage Protection Trip | View Details |
| E10 |
Controller displays E10, generator shuts down under load.
|
Undervoltage Protection Trip | View Details |
| E11 |
Controller shows E11, generator shuts down, and will not restart until the code is cleared.
|
Overcurrent / Output Breaker Trip | View Details |
| E12 |
Controller displays E12, generator will not start in AUTO mode.
|
Emergency Stop / Remote Stop Active | View Details |
| E13 |
Controller shows E13, generator shuts down shortly after start.
|
Low Coolant Level / Coolant Sensor Fault | View Details |
| E14 |
Controller displays E14, generator will not start or shuts down during the crank cycle.
|
Crank Timeout / Failed to Start | View Details |
| E15 |
Controller shows E15, generator shuts down during run.
|
Fuel Level Low / Fuel Leak Detected | View Details |
| E16 |
Controller displays E16, generator shuts down immediately after start.
|
Phase Rotation / Frequency Error | View Details |
| E17 |
Controller shows E17, generator remains running, but the alarm is active.
|
High Engine Temperature Warning (Pre‑Alarm) | View Details |
| E18 |
Controller displays E18, generator shuts down, and cannot be restarted until the fault is cleared.
|
Low Oil Level / Oil Level Switch Fault | View Details |
| E19 |
Controller shows E19; generator shuts down during operation with no obvious mechanical issue.
|
Controller Internal Fault / Memory Error | View Details |
| E20 |
Controller displays E20; generator will not start in AUTO when utility fails.
|
ATS Communication / Start Signal Fault | View Details |
| – |
Battery repeatedly goes dead between exercise cycles
|
Chronic Battery Discharge | View Details |
| – |
Controller display is blank or intermittent, generator otherwise appears functional
|
Controller Power / Display Issue | View Details |
| – |
Corrosion visible on terminals and metal parts inside generator enclosure
|
Corrosion and Environmental Damage | View Details |
| – |
Excessive white or blue smoke from exhaust during operation
|
Abnormal Exhaust Smoke | View Details |
| – |
Fuel odor around generator enclosure, visible fuel drips under the unit.
|
Fuel Leak | View Details |
| – |
Generator cranks normally but will not start; no error code displayed.
|
General No-Start Condition | View Details |
| – |
Generator enclosure interior is wet or shows signs of water ingress after rain
|
Water Ingress into Enclosure | View Details |
| – |
Generator fails to start automatically during scheduled exercise, but starts manually
|
Exercise Timer / Auto Start Configuration Issue | View Details |
| – |
Generator frequency is consistently high or low under all loads
|
Incorrect Engine Speed Setting | View Details |
| – |
Generator is excessively noisy during operation compared to normal.
|
Abnormal Mechanical Noise | View Details |
| – |
Generator is running but ATS does not transfer load to generator.
|
No Load Transfer from ATS | View Details |
| – |
Generator output breaker trips when large motor loads start
|
Nuisance Breaker Trip on Motor Starting | View Details |
| – |
Generator runs but produces low or fluctuating voltage; no specific error code.
|
Unstable Voltage Output | View Details |
| – |
Generator shuts down when enclosure doors are closed but runs with doors open
|
Overheating or Airflow Restriction with Doors Closed | View Details |
| – |
Generator starts and stops repeatedly in short cycles without load changes
|
Nuisance Start/Stop Cycling | View Details |
| – |
Generator starts then stalls after a few seconds; no code shown.
|
Run-Then-Stall Fuel Delivery Issue | View Details |
| – |
Generator vibrates excessively during operation, causing the enclosure to shake.
|
Excessive Vibration | View Details |
| – |
Strong exhaust fumes or heat felt inside nearby building when generator runs
|
Exhaust Fume Intrusion | View Details |
| – |
Visible coolant puddle under the generator or strong coolant smell.
|
Coolant Leak | View Details |
No matching codes found
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