EVgo
EVgo EV Home Chargers Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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E01
The charger will not start charging; the display shows E01 immediately after the vehicle is connected.
Pilot Signal Communication Fault
E02
The charger displays E02 and refuses to energize; the vehicle does not begin charging.
Ground Fault / Leakage Current Detected
E03
The display shows E03 and charging stops or will not start.
Contactor Welded or Contactor Feedback Fault
E04
The charger shows E04 and will not charge; this often occurs during hot weather or long sessions.
Overtemperature Protection Trip
E05
Display shows E05; charger refuses to start or stops shortly after starting.
Input Voltage Out of Range
E06
Charger shows E06 and does not charge; may occur intermittently when plugging in.
Proximity / Latch Switch Fault
E07
Display shows E07; charger will not start charging even though the vehicle is connected.
Relay Self-Test Failure / Stuck Relay
E08
Charger shows E08 and stops charging; this may occur when the vehicle requests high current.
Output Overcurrent / Short Circuit Detected
E09
Display shows E09; charger does not respond to plug-in or start commands.
Internal Communication Failure (Control Board to Power Module)
E10
Charger shows E10 and refuses to charge; this often occurs after installation or rewiring.
Grounding / Protective Earth Fault
E11
Display shows E11; charger may start then quickly stop charging.
Insulation Resistance / Isolation Fault
E12
Charger shows E12; the Wi-Fi or network icon may be flashing; charging may still work but with limited features.
Network Communication Error
E13
Display shows E13; charger does not respond to app commands or remote updates.
Cloud / Backend Communication Failure
E14
Charger shows E14 and refuses to charge; this may occur after a firmware update attempt.
Firmware Integrity / Configuration Error
E15
Display shows E15; charger may intermittently stop charging without user input.
Internal Power Supply Fault (Low‑Voltage Rail Error)
E16
Charger shows E16; vehicle reports a charging error and stops.
Pilot Duty Cycle / Current Limit Mismatch
E17
Display shows E17; charger appears to reboot repeatedly or freeze.
Internal Watchdog Reset / System Crash
E18
Charger shows E18; RFID card or user authentication fails repeatedly.
User Authentication / RFID Reader Fault
E19
Display shows E19; charger indicates an internal memory or log error.
Data Logging / Memory Fault
E20
Charger shows E20; vehicle reports that the EVSE is not properly grounded or safe.
Line Polarity / Wiring Error
Symptom
Charger completely dead – no lights on the display, no response when the vehicle is plugged in.
No Power / Input Supply Failure
Symptom
Charger emits a burning smell or visible smoke during or after charging.
Overheating / Component Burnout
Symptom
Charger leaks water from the bottom of the enclosure after rain or washing the car nearby.
Water Ingress / Seal Failure
Symptom
Charger makes loud buzzing, humming, or clicking noises during operation.
Excessive Electrical or Mechanical Noise
Symptom
Charger powers on but will not start charging; no specific error code is shown on the display.
General Start Failure / Handshake Incomplete
Symptom
Charger trips the upstream breaker frequently during or shortly after starting a charge.
Nuisance Breaker Tripping
Symptom
Charger’s cable is difficult to insert into or remove from the vehicle inlet.
Mechanical Connector Wear / Misalignment
Symptom
Charger’s display is blank or unreadable, but the vehicle still charges when plugged in.
Display / HMI Failure
Symptom
Charging session starts but stops after a few minutes without any error code; the user must restart manually.
Intermittent Charging / Session Dropout
Symptom
The charger gets very hot to the touch during normal charging, even at moderate ambient temperatures.
Overheating Enclosure / Thermal Management Issue
Symptom
The charger randomly restarts or reboots during idle periods or charging.
Intermittent Power / Control Reset
Symptom
The charger's status LEDs blink in an unusual pattern with no clear error code on the display.
Non-Latching Diagnostic Indication
Symptom
The vehicle displays a message that the EVSE is not properly grounded or safe, but the EVgo charger shows no error.
Marginal Grounding / High Ground Impedance
Symptom
Touch buttons or capacitive keys on the charger front panel do not respond reliably.
Front Panel Control / Keypad Malfunction
Symptom
Vehicle reports that charging current is lower than expected; the EVgo charger appears limited.
Reduced Output Current / Derating
Symptom
Visible cracks, cuts, or abrasions on the EVgo charging cable jacket.
Cable Insulation Damage
Symptom
Wi‑Fi connection to the charger is unstable or frequently drops, affecting app control.
Unstable Wireless Connectivity
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
The charger will not start charging; the display shows E01 immediately after the vehicle is connected.
|
Pilot Signal Communication Fault | View Details |
| E02 |
The charger displays E02 and refuses to energize; the vehicle does not begin charging.
|
Ground Fault / Leakage Current Detected | View Details |
| E03 |
The display shows E03 and charging stops or will not start.
|
Contactor Welded or Contactor Feedback Fault | View Details |
| E04 |
The charger shows E04 and will not charge; this often occurs during hot weather or long sessions.
|
Overtemperature Protection Trip | View Details |
| E05 |
Display shows E05; charger refuses to start or stops shortly after starting.
|
Input Voltage Out of Range | View Details |
| E06 |
Charger shows E06 and does not charge; may occur intermittently when plugging in.
|
Proximity / Latch Switch Fault | View Details |
| E07 |
Display shows E07; charger will not start charging even though the vehicle is connected.
|
Relay Self-Test Failure / Stuck Relay | View Details |
| E08 |
Charger shows E08 and stops charging; this may occur when the vehicle requests high current.
|
Output Overcurrent / Short Circuit Detected | View Details |
| E09 |
Display shows E09; charger does not respond to plug-in or start commands.
|
Internal Communication Failure (Control Board to Power Module) | View Details |
| E10 |
Charger shows E10 and refuses to charge; this often occurs after installation or rewiring.
|
Grounding / Protective Earth Fault | View Details |
| E11 |
Display shows E11; charger may start then quickly stop charging.
|
Insulation Resistance / Isolation Fault | View Details |
| E12 |
Charger shows E12; the Wi-Fi or network icon may be flashing; charging may still work but with limited features.
|
Network Communication Error | View Details |
| E13 |
Display shows E13; charger does not respond to app commands or remote updates.
|
Cloud / Backend Communication Failure | View Details |
| E14 |
Charger shows E14 and refuses to charge; this may occur after a firmware update attempt.
|
Firmware Integrity / Configuration Error | View Details |
| E15 |
Display shows E15; charger may intermittently stop charging without user input.
|
Internal Power Supply Fault (Low‑Voltage Rail Error) | View Details |
| E16 |
Charger shows E16; vehicle reports a charging error and stops.
|
Pilot Duty Cycle / Current Limit Mismatch | View Details |
| E17 |
Display shows E17; charger appears to reboot repeatedly or freeze.
|
Internal Watchdog Reset / System Crash | View Details |
| E18 |
Charger shows E18; RFID card or user authentication fails repeatedly.
|
User Authentication / RFID Reader Fault | View Details |
| E19 |
Display shows E19; charger indicates an internal memory or log error.
|
Data Logging / Memory Fault | View Details |
| E20 |
Charger shows E20; vehicle reports that the EVSE is not properly grounded or safe.
|
Line Polarity / Wiring Error | View Details |
| – |
Charger completely dead – no lights on the display, no response when the vehicle is plugged in.
|
No Power / Input Supply Failure | View Details |
| – |
Charger emits a burning smell or visible smoke during or after charging.
|
Overheating / Component Burnout | View Details |
| – |
Charger leaks water from the bottom of the enclosure after rain or washing the car nearby.
|
Water Ingress / Seal Failure | View Details |
| – |
Charger makes loud buzzing, humming, or clicking noises during operation.
|
Excessive Electrical or Mechanical Noise | View Details |
| – |
Charger powers on but will not start charging; no specific error code is shown on the display.
|
General Start Failure / Handshake Incomplete | View Details |
| – |
Charger trips the upstream breaker frequently during or shortly after starting a charge.
|
Nuisance Breaker Tripping | View Details |
| – |
Charger’s cable is difficult to insert into or remove from the vehicle inlet.
|
Mechanical Connector Wear / Misalignment | View Details |
| – |
Charger’s display is blank or unreadable, but the vehicle still charges when plugged in.
|
Display / HMI Failure | View Details |
| – |
Charging session starts but stops after a few minutes without any error code; the user must restart manually.
|
Intermittent Charging / Session Dropout | View Details |
| – |
The charger gets very hot to the touch during normal charging, even at moderate ambient temperatures.
|
Overheating Enclosure / Thermal Management Issue | View Details |
| – |
The charger randomly restarts or reboots during idle periods or charging.
|
Intermittent Power / Control Reset | View Details |
| – |
The charger's status LEDs blink in an unusual pattern with no clear error code on the display.
|
Non-Latching Diagnostic Indication | View Details |
| – |
The vehicle displays a message that the EVSE is not properly grounded or safe, but the EVgo charger shows no error.
|
Marginal Grounding / High Ground Impedance | View Details |
| – |
Touch buttons or capacitive keys on the charger front panel do not respond reliably.
|
Front Panel Control / Keypad Malfunction | View Details |
| – |
Vehicle reports that charging current is lower than expected; the EVgo charger appears limited.
|
Reduced Output Current / Derating | View Details |
| – |
Visible cracks, cuts, or abrasions on the EVgo charging cable jacket.
|
Cable Insulation Damage | View Details |
| – |
Wi‑Fi connection to the charger is unstable or frequently drops, affecting app control.
|
Unstable Wireless Connectivity | View Details |
No matching codes found
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