Westinghouse 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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E0
Generator controller powers up but shows E0 and will not enter AUTO mode
Controller Configuration / No Active Fault
E1
Generator attempts to start, cranks briefly, then stops and displays E1
Low Oil Pressure Shutdown
E10
Controller displays E10 and prevents automatic operation
Emergency Stop / E-Stop Active
E11
Generator will not start and displays E11 on the controller
Fuel Supply Fault / Low Gas Pressure
E12
Generator shuts down and displays E12 after running for a short period
Low Fuel Level (Liquid Fuel Models)
E13
Controller shows E13 and the generator will not transfer load
Transfer Switch Communication Fault
E14
Generator runs but controller displays E14 and may not accept remote start commands
Controller Internal Fault / EEPROM Error
E15
Generator shuts down and displays E15, often with a smell of fuel
Engine Misfire / Ignition Fault
E16
Generator shuts down and displays E16, often during extended runs
Low Coolant Level (Liquid-Cooled Models)
E17
Controller displays E17 and the generator will not start automatically during utility outages
Utility Sensing Fault
E18
Generator runs but controller shows E18 and may limit operation
Sensor Input Fault (Generic Analog Sensor Error)
E19
Controller displays E19 and logs communication errors with remote monitoring
Remote Monitoring / Network Communication Fault
E2
Generator cranks but does not start, then displays E2 on the controller
Overcrank / Failed Start
E20
Generator shuts down and displays E20, often with a strong fuel smell at the exhaust
Rich Fuel Mixture / Exhaust Overfuel Fault
E3
Generator starts, runs briefly, then shuts down and displays E3
High Engine Temperature / Overheat Shutdown
E4
Generator shuts down during operation and displays E4 on the controller
Overspeed Protection Trip
E5
Generator shuts down and displays E5 shortly after starting, often when loads are applied
Underspeed / Underfrequency Fault
E6
Controller displays E6 and prevents the generator from starting
Low Battery Voltage / Battery Charge Fault
E7
Generator shuts down and displays E7 during or after a start attempt
Starter Overcrank / Starter Lockout
E8
Generator runs but controller shows E8 and may shut down under load
Low AC Output Voltage
E9
Generator shuts down and displays E9, often accompanied by high voltage readings
High AC Output Voltage
Symptom
Controller display is blank or unreadable, generator otherwise appears intact
Display Power / Backlight Failure
Symptom
Corrosion visible on battery terminals and metal parts inside enclosure
Corrosion / Moisture Intrusion
Symptom
Exercise cycle does not run at scheduled time, but generator works in manual mode
Exercise Timer / Scheduler Fault
Symptom
Fuel smell around generator enclosure when unit is running
Fuel Leak / Gas Train Integrity Issue
Symptom
Generator cranks normally but never fires, no attempt to start
No-Start Fuel or Ignition Failure
Symptom
Generator is excessively loud or has new knocking sounds during operation
Abnormal Engine Noise / Mechanical Wear
Symptom
Generator output breaker trips repeatedly when loads are applied
Overcurrent / Short Circuit on Load Side
Symptom
Generator runs and transfers, but house lights flicker and voltage fluctuates
Unstable Voltage / AVR or Engine Speed Instability
Symptom
Generator runs but does not transfer power to the house during an outage
No-Transfer Condition / ATS Mechanical or Control Failure
Symptom
Generator runs but frequency is consistently off (e.g., 55 Hz or 65 Hz) with no code
Engine Speed Misadjustment
Symptom
Generator shuts down after several hours with a strong hot smell but no specific code
Thermal Overload / Ventilation Problem
Symptom
Generator starts but immediately stalls within a few seconds
Start-Run Dropout / Fuel or Sensor Shutdown
Symptom
Generator vibrates excessively, causing the enclosure to rattle
Excessive Vibration / Imbalance
Symptom
Generator will not start at all, no crank, no click from starter
No-Start Electrical / Control Power Failure
Symptom
Oil leaking under generator, oil spots on concrete pad
Engine Oil Leak
Symptom
Visible arcing or burning smell from alternator area
Alternator Electrical Fault
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E0 |
Generator controller powers up but shows E0 and will not enter AUTO mode
|
Controller Configuration / No Active Fault | View Details |
| E1 |
Generator attempts to start, cranks briefly, then stops and displays E1
|
Low Oil Pressure Shutdown | View Details |
| E10 |
Controller displays E10 and prevents automatic operation
|
Emergency Stop / E-Stop Active | View Details |
| E11 |
Generator will not start and displays E11 on the controller
|
Fuel Supply Fault / Low Gas Pressure | View Details |
| E12 |
Generator shuts down and displays E12 after running for a short period
|
Low Fuel Level (Liquid Fuel Models) | View Details |
| E13 |
Controller shows E13 and the generator will not transfer load
|
Transfer Switch Communication Fault | View Details |
| E14 |
Generator runs but controller displays E14 and may not accept remote start commands
|
Controller Internal Fault / EEPROM Error | View Details |
| E15 |
Generator shuts down and displays E15, often with a smell of fuel
|
Engine Misfire / Ignition Fault | View Details |
| E16 |
Generator shuts down and displays E16, often during extended runs
|
Low Coolant Level (Liquid-Cooled Models) | View Details |
| E17 |
Controller displays E17 and the generator will not start automatically during utility outages
|
Utility Sensing Fault | View Details |
| E18 |
Generator runs but controller shows E18 and may limit operation
|
Sensor Input Fault (Generic Analog Sensor Error) | View Details |
| E19 |
Controller displays E19 and logs communication errors with remote monitoring
|
Remote Monitoring / Network Communication Fault | View Details |
| E2 |
Generator cranks but does not start, then displays E2 on the controller
|
Overcrank / Failed Start | View Details |
| E20 |
Generator shuts down and displays E20, often with a strong fuel smell at the exhaust
|
Rich Fuel Mixture / Exhaust Overfuel Fault | View Details |
| E3 |
Generator starts, runs briefly, then shuts down and displays E3
|
High Engine Temperature / Overheat Shutdown | View Details |
| E4 |
Generator shuts down during operation and displays E4 on the controller
|
Overspeed Protection Trip | View Details |
| E5 |
Generator shuts down and displays E5 shortly after starting, often when loads are applied
|
Underspeed / Underfrequency Fault | View Details |
| E6 |
Controller displays E6 and prevents the generator from starting
|
Low Battery Voltage / Battery Charge Fault | View Details |
| E7 |
Generator shuts down and displays E7 during or after a start attempt
|
Starter Overcrank / Starter Lockout | View Details |
| E8 |
Generator runs but controller shows E8 and may shut down under load
|
Low AC Output Voltage | View Details |
| E9 |
Generator shuts down and displays E9, often accompanied by high voltage readings
|
High AC Output Voltage | View Details |
| – |
Controller display is blank or unreadable, generator otherwise appears intact
|
Display Power / Backlight Failure | View Details |
| – |
Corrosion visible on battery terminals and metal parts inside enclosure
|
Corrosion / Moisture Intrusion | View Details |
| – |
Exercise cycle does not run at scheduled time, but generator works in manual mode
|
Exercise Timer / Scheduler Fault | View Details |
| – |
Fuel smell around generator enclosure when unit is running
|
Fuel Leak / Gas Train Integrity Issue | View Details |
| – |
Generator cranks normally but never fires, no attempt to start
|
No-Start Fuel or Ignition Failure | View Details |
| – |
Generator is excessively loud or has new knocking sounds during operation
|
Abnormal Engine Noise / Mechanical Wear | View Details |
| – |
Generator output breaker trips repeatedly when loads are applied
|
Overcurrent / Short Circuit on Load Side | View Details |
| – |
Generator runs and transfers, but house lights flicker and voltage fluctuates
|
Unstable Voltage / AVR or Engine Speed Instability | View Details |
| – |
Generator runs but does not transfer power to the house during an outage
|
No-Transfer Condition / ATS Mechanical or Control Failure | View Details |
| – |
Generator runs but frequency is consistently off (e.g., 55 Hz or 65 Hz) with no code
|
Engine Speed Misadjustment | View Details |
| – |
Generator shuts down after several hours with a strong hot smell but no specific code
|
Thermal Overload / Ventilation Problem | View Details |
| – |
Generator starts but immediately stalls within a few seconds
|
Start-Run Dropout / Fuel or Sensor Shutdown | View Details |
| – |
Generator vibrates excessively, causing the enclosure to rattle
|
Excessive Vibration / Imbalance | View Details |
| – |
Generator will not start at all, no crank, no click from starter
|
No-Start Electrical / Control Power Failure | View Details |
| – |
Oil leaking under generator, oil spots on concrete pad
|
Engine Oil Leak | View Details |
| – |
Visible arcing or burning smell from alternator area
|
Alternator Electrical Fault | View Details |
No matching codes found
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