Enel X
Enel X 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
Charger will not start charging; vehicle shows ‘charging error’ and Enel X app displays E01.
Pilot Signal Communication Failure
E02
Charger displays E02 and refuses to start; vehicle does not lock the connector or begin charging.
Proximity Detection / Plug Presence Fault
E03
Charger shows E03 and immediately stops or refuses to start charging; vehicle may show ‘ground fault’ or ‘charging station error’.
Ground Fault / Residual Current Detection Trip
E04
Charger displays E04 and will not energize; app may indicate ‘ground missing’ or ‘protective earth fault’.
Protective Earth (PE) Loss or High Impedance Ground
E05
Charger shows E05 and stops charging; app may show ‘overcurrent’ or ‘current limit exceeded’.
Overcurrent / Output Overload Protection Trip
E06
The charger displays E06 and refuses to start; the app may indicate 'overvoltage' or 'input voltage too high'.
AC Input Overvoltage Protection
E07
The charger shows E07 and will not charge; the app may show 'undervoltage' or 'input voltage too low'.
AC Input Undervoltage Protection
E08
The charger displays E08 and stops charging; the app may indicate 'overtemperature' or 'thermal shutdown'.
Internal Overtemperature Protection
E09
The charger shows E09 and will not start; the app may show 'relay weld' or 'contactor fault'.
Stuck or Welded Output Contactor / Relay
E10
The charger displays E10 and refuses to charge; the app may show 'self-test failure' or 'internal diagnostic error'.
Internal Self-Test / Safety Circuit Failure
E11
The charger shows E11 and does not charge; the app may indicate 'CP short to ground' or 'pilot short'.
Control Pilot Short to Ground or Line
E12
The charger displays E12 and will not start; the app may show 'CP open circuit' or 'pilot open'.
Control Pilot Open Circuit
E13
The charger shows E13 and stops charging; the app may indicate 'DC leakage detected' or 'DC fault'.
DC Residual Current Detection Trip
E14
The charger displays E14 and will not charge; the app may show 'lock fault' or 'connector lock error' (for units with a cable lock).
Connector Locking Mechanism Failure
E15
The charger shows E15 and refuses to start; the app may indicate 'Wi‑Fi module error' or 'communication module fault'.
Internal Communication Module Failure
E16
Charger displays E16 and will not charge; the app may show ‘meter error’ or ‘energy meter fault’ on models with internal metering.
Internal Energy Meter Communication Failure
E17
Charger shows E17 and stops charging; the app may indicate ‘load management error’ or ‘DLM communication fault’ for dynamic load management setups.
Dynamic Load Management (DLM) Communication Failure
E18
Charger displays E18 and refuses to start; the app may show ‘phase sequence error’ or ‘phase configuration fault’ on three-phase units.
Phase Sequence / Phase Loss Detection
E19
Charger shows E19 and will not charge; the app may indicate ‘N-PE fault’ or ‘neutral to earth fault’ on TN systems.
Neutral to Earth Voltage / Fault Detection
E20
Charger displays E20 and stops charging; the app may show ‘internal power supply error’.
Low-Voltage Auxiliary Power Supply Failure
E21
Charger shows E21 and will not charge; the app may indicate ‘RTC error’ or ‘clock failure’.
Real-Time Clock / Timekeeping Failure
E22
Charger displays E22 and refuses to start; the app may show ‘authentication error’ or ‘RFID reader fault’ on access-controlled units.
RFID / User Authentication Module Failure
E23
Charger shows E23 and will not charge; the app may indicate ‘display error’ or ‘HMI fault’.
Display / Human-Machine Interface Failure
E24
Charger displays E24 and stops charging; the app may show ‘isolation fault’ or ‘insulation resistance low’.
Output Insulation / Isolation Fault
E25
Charger shows E25 and refuses to start; the app may indicate ‘vehicle communication error’ or ‘EVSE-EV handshake failed’.
EVSE-Vehicle Handshake / PWM Communication Error
E26
The charger displays E26 and stops charging; the app may show 'session limit exceeded' or 'max energy/time reached'.
Charging Session Limit / Software Cutoff
E27
The charger shows E27 and will not charge; the app may indicate 'OCPP server error' or 'backend communication fault' on networked units.
Backend / OCPP Communication Failure
E28
The charger displays E28 and refuses to start; the app may show 'configuration error' or 'parameter set invalid'.
Configuration / Parameter Corruption
E29
The charger shows E29 and will not charge; the app may indicate 'contact welding test failed' or 'pre‑charge error'.
Pre‑Charge / Contactor Test Failure
E30
The charger displays E30 and stops charging; the app may show 'temperature sensor error' or 'sensor open/short'.
Temperature Sensor Circuit Fault
Symptom
The charger does not power on at all; there are no LEDs or display, and it is not visible in the Enel X app.
No Power / Dead Unit
Symptom
The charger enclosure feels excessively hot to the touch during or after a charging session, even in moderate ambient temperatures.
Enclosure Overheating / Poor Thermal Dissipation
Symptom
The charger intermittently stops charging before the vehicle battery is full, with no error code; charging resumes if unplugged and replugged.
Intermittent Charging Interruption
Symptom
The charger leaks water or shows condensation inside the transparent parts of the enclosure.
Water Ingress / Compromised IP Rating
Symptom
The charger makes loud clicking, buzzing, or humming noises during operation, more than a brief contactor click.
Abnormal Mechanical Noise from Contactor or Transformer
Symptom
The charger powers on but will not start charging; the vehicle shows 'charging station not ready' and no specific error code is displayed.
Standby State / Not Ready to Charge
Symptom
The charger reports incorrect energy usage or current values in the Enel X app compared to the vehicle or an external meter.
Inaccurate Metering / Sensing
Symptom
The charger trips the household breaker or RCD/GFCI whenever a charging session starts.
Nuisance Tripping of Upstream Protection
Symptom
The charger's Wi-Fi connection is unstable or frequently drops, causing remote control and monitoring to fail intermittently.
Unstable Wireless Connectivity
Symptom
The charger’s RFID card reader does not respond to cards or fobs, but the rest of the charger functions normally.
Non-Responsive RFID Reader
Symptom
The charger’s connector or cable becomes very hot during charging, sometimes causing charging to slow down or stop.
Overheating Connector / Cable
Symptom
The charger’s display is dim, flickering, or unreadable, but charging still works via the app.
Display Degradation / Backlight Failure
Symptom
The charger’s front LEDs blink in an unusual pattern with no documented error code, and charging behavior is erratic.
Undocumented Firmware / Logic Anomaly
Symptom
The charger’s internal fan runs loudly or continuously, even at low load or when idle.
Cooling Fan Overrun / Noise
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Charger will not start charging; vehicle shows ‘charging error’ and Enel X app displays E01.
|
Pilot Signal Communication Failure | View Details |
| E02 |
Charger displays E02 and refuses to start; vehicle does not lock the connector or begin charging.
|
Proximity Detection / Plug Presence Fault | View Details |
| E03 |
Charger shows E03 and immediately stops or refuses to start charging; vehicle may show ‘ground fault’ or ‘charging station error’.
|
Ground Fault / Residual Current Detection Trip | View Details |
| E04 |
Charger displays E04 and will not energize; app may indicate ‘ground missing’ or ‘protective earth fault’.
|
Protective Earth (PE) Loss or High Impedance Ground | View Details |
| E05 |
Charger shows E05 and stops charging; app may show ‘overcurrent’ or ‘current limit exceeded’.
|
Overcurrent / Output Overload Protection Trip | View Details |
| E06 |
The charger displays E06 and refuses to start; the app may indicate 'overvoltage' or 'input voltage too high'.
|
AC Input Overvoltage Protection | View Details |
| E07 |
The charger shows E07 and will not charge; the app may show 'undervoltage' or 'input voltage too low'.
|
AC Input Undervoltage Protection | View Details |
| E08 |
The charger displays E08 and stops charging; the app may indicate 'overtemperature' or 'thermal shutdown'.
|
Internal Overtemperature Protection | View Details |
| E09 |
The charger shows E09 and will not start; the app may show 'relay weld' or 'contactor fault'.
|
Stuck or Welded Output Contactor / Relay | View Details |
| E10 |
The charger displays E10 and refuses to charge; the app may show 'self-test failure' or 'internal diagnostic error'.
|
Internal Self-Test / Safety Circuit Failure | View Details |
| E11 |
The charger shows E11 and does not charge; the app may indicate 'CP short to ground' or 'pilot short'.
|
Control Pilot Short to Ground or Line | View Details |
| E12 |
The charger displays E12 and will not start; the app may show 'CP open circuit' or 'pilot open'.
|
Control Pilot Open Circuit | View Details |
| E13 |
The charger shows E13 and stops charging; the app may indicate 'DC leakage detected' or 'DC fault'.
|
DC Residual Current Detection Trip | View Details |
| E14 |
The charger displays E14 and will not charge; the app may show 'lock fault' or 'connector lock error' (for units with a cable lock).
|
Connector Locking Mechanism Failure | View Details |
| E15 |
The charger shows E15 and refuses to start; the app may indicate 'Wi‑Fi module error' or 'communication module fault'.
|
Internal Communication Module Failure | View Details |
| E16 |
Charger displays E16 and will not charge; the app may show ‘meter error’ or ‘energy meter fault’ on models with internal metering.
|
Internal Energy Meter Communication Failure | View Details |
| E17 |
Charger shows E17 and stops charging; the app may indicate ‘load management error’ or ‘DLM communication fault’ for dynamic load management setups.
|
Dynamic Load Management (DLM) Communication Failure | View Details |
| E18 |
Charger displays E18 and refuses to start; the app may show ‘phase sequence error’ or ‘phase configuration fault’ on three-phase units.
|
Phase Sequence / Phase Loss Detection | View Details |
| E19 |
Charger shows E19 and will not charge; the app may indicate ‘N-PE fault’ or ‘neutral to earth fault’ on TN systems.
|
Neutral to Earth Voltage / Fault Detection | View Details |
| E20 |
Charger displays E20 and stops charging; the app may show ‘internal power supply error’.
|
Low-Voltage Auxiliary Power Supply Failure | View Details |
| E21 |
Charger shows E21 and will not charge; the app may indicate ‘RTC error’ or ‘clock failure’.
|
Real-Time Clock / Timekeeping Failure | View Details |
| E22 |
Charger displays E22 and refuses to start; the app may show ‘authentication error’ or ‘RFID reader fault’ on access-controlled units.
|
RFID / User Authentication Module Failure | View Details |
| E23 |
Charger shows E23 and will not charge; the app may indicate ‘display error’ or ‘HMI fault’.
|
Display / Human-Machine Interface Failure | View Details |
| E24 |
Charger displays E24 and stops charging; the app may show ‘isolation fault’ or ‘insulation resistance low’.
|
Output Insulation / Isolation Fault | View Details |
| E25 |
Charger shows E25 and refuses to start; the app may indicate ‘vehicle communication error’ or ‘EVSE-EV handshake failed’.
|
EVSE-Vehicle Handshake / PWM Communication Error | View Details |
| E26 |
The charger displays E26 and stops charging; the app may show 'session limit exceeded' or 'max energy/time reached'.
|
Charging Session Limit / Software Cutoff | View Details |
| E27 |
The charger shows E27 and will not charge; the app may indicate 'OCPP server error' or 'backend communication fault' on networked units.
|
Backend / OCPP Communication Failure | View Details |
| E28 |
The charger displays E28 and refuses to start; the app may show 'configuration error' or 'parameter set invalid'.
|
Configuration / Parameter Corruption | View Details |
| E29 |
The charger shows E29 and will not charge; the app may indicate 'contact welding test failed' or 'pre‑charge error'.
|
Pre‑Charge / Contactor Test Failure | View Details |
| E30 |
The charger displays E30 and stops charging; the app may show 'temperature sensor error' or 'sensor open/short'.
|
Temperature Sensor Circuit Fault | View Details |
| – |
The charger does not power on at all; there are no LEDs or display, and it is not visible in the Enel X app.
|
No Power / Dead Unit | View Details |
| – |
The charger enclosure feels excessively hot to the touch during or after a charging session, even in moderate ambient temperatures.
|
Enclosure Overheating / Poor Thermal Dissipation | View Details |
| – |
The charger intermittently stops charging before the vehicle battery is full, with no error code; charging resumes if unplugged and replugged.
|
Intermittent Charging Interruption | View Details |
| – |
The charger leaks water or shows condensation inside the transparent parts of the enclosure.
|
Water Ingress / Compromised IP Rating | View Details |
| – |
The charger makes loud clicking, buzzing, or humming noises during operation, more than a brief contactor click.
|
Abnormal Mechanical Noise from Contactor or Transformer | View Details |
| – |
The charger powers on but will not start charging; the vehicle shows 'charging station not ready' and no specific error code is displayed.
|
Standby State / Not Ready to Charge | View Details |
| – |
The charger reports incorrect energy usage or current values in the Enel X app compared to the vehicle or an external meter.
|
Inaccurate Metering / Sensing | View Details |
| – |
The charger trips the household breaker or RCD/GFCI whenever a charging session starts.
|
Nuisance Tripping of Upstream Protection | View Details |
| – |
The charger's Wi-Fi connection is unstable or frequently drops, causing remote control and monitoring to fail intermittently.
|
Unstable Wireless Connectivity | View Details |
| – |
The charger’s RFID card reader does not respond to cards or fobs, but the rest of the charger functions normally.
|
Non-Responsive RFID Reader | View Details |
| – |
The charger’s connector or cable becomes very hot during charging, sometimes causing charging to slow down or stop.
|
Overheating Connector / Cable | View Details |
| – |
The charger’s display is dim, flickering, or unreadable, but charging still works via the app.
|
Display Degradation / Backlight Failure | View Details |
| – |
The charger’s front LEDs blink in an unusual pattern with no documented error code, and charging behavior is erratic.
|
Undocumented Firmware / Logic Anomaly | View Details |
| – |
The charger’s internal fan runs loudly or continuously, even at low load or when idle.
|
Cooling Fan Overrun / Noise | View Details |
No matching codes found
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