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
Charger displays E06 and refuses to start; app may indicate ‘overvoltage’ or ‘input voltage too high’.
AC Input Overvoltage Protection
E07
Charger shows E07 and will not charge; app may show ‘undervoltage’ or ‘input voltage too low’.
AC Input Undervoltage Protection
E08
Charger displays E08 and stops charging; app may indicate ‘overtemperature’ or ‘thermal shutdown’.
Internal Overtemperature Protection
E09
Charger shows E09 and will not start; app may show ‘relay weld’ or ‘contactor fault’.
Stuck or Welded Output Contactor / Relay
E10
Charger displays E10 and refuses to charge; app may show ‘self-test failure’ or ‘internal diagnostic error’.
Internal Self-Test / Safety Circuit Failure
E11
Charger shows E11 and does not charge; app may indicate ‘CP short to ground’ or ‘pilot short’.
Control Pilot Short to Ground or Line
E12
Charger displays E12 and will not start; app may show ‘CP open circuit’ or ‘pilot open’.
Control Pilot Open Circuit
E13
Charger shows E13 and stops charging; app may indicate ‘DC leakage detected’ or ‘DC fault’.
DC Residual Current Detection Trip
E14
Charger displays E14 and will not charge; app may show ‘lock fault’ or ‘connector lock error’ (for units with cable lock).
Connector Locking Mechanism Failure
E15
Charger shows E15 and refuses to start; app may indicate ‘Wi‑Fi module error’ or ‘communication module fault’.
Internal Communication Module Failure
E16
Charger displays E16 and will not charge; 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; 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; 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; 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; app may show ‘internal power supply error’.
Low‑Voltage Auxiliary Power Supply Failure
E21
Charger shows E21 and will not charge; app may indicate ‘RTC error’ or ‘clock failure’.
Real‑Time Clock / Timekeeping Failure
E22
Charger displays E22 and refuses to start; 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; app may indicate ‘display error’ or ‘HMI fault’.
Display / Human‑Machine Interface Failure
E24
Charger displays E24 and stops charging; app may show ‘isolation fault’ or ‘insulation resistance low’.
Output Insulation / Isolation Fault
E25
Charger shows E25 and refuses to start; app may indicate ‘vehicle communication error’ or ‘EVSE‑EV handshake failed’.
EVSE‑Vehicle Handshake / PWM Communication Error
E26
Charger displays E26 and stops charging; app may show ‘session limit exceeded’ or ‘max energy/time reached’.
Charging Session Limit / Software Cutoff
E27
Charger shows E27 and will not charge; app may indicate ‘OCPP server error’ or ‘backend communication fault’ on networked units.
Backend / OCPP Communication Failure
E28
Charger displays E28 and refuses to start; app may show ‘configuration error’ or ‘parameter set invalid’.
Configuration / Parameter Corruption
E29
Charger shows E29 and will not charge; app may indicate ‘contact welding test failed’ or ‘pre‑charge error’.
Pre‑Charge / Contactor Test Failure
E30
Charger displays E30 and stops charging; app may show ‘temperature sensor error’ or ‘sensor open/short’.
Temperature Sensor Circuit Fault
Symptom
Charger does not power on at all; no LEDs or display, and it is not visible in the Enel X app.
No Power / Dead Unit
Symptom
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
Charger intermittently stops charging before the vehicle battery is full, with no error code; charging resumes if unplugged and replugged.
Intermittent Charging Interruption
Symptom
Charger leaks water or shows condensation inside the transparent parts of the enclosure.
Water Ingress / Compromised IP Rating
Symptom
Charger makes loud clicking, buzzing, or humming noises during operation, more than a brief contactor click.
Abnormal Mechanical Noise from Contactor or Transformer
Symptom
Charger powers on but will not start charging; vehicle shows ‘charging station not ready’ and no specific error code is displayed.
Standby State / Not Ready to Charge
Symptom
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
Charger trips the household breaker or RCD/GFCI whenever a charging session starts.
Nuisance Tripping of Upstream Protection
Symptom
Charger’s connector or cable becomes very hot during charging, sometimes causing charging to slow down or stop.
Overheating Connector / Cable
Symptom
Charger’s display is dim, flickering, or unreadable, but charging still works via the app.
Display Degradation / Backlight Failure
Symptom
Charger’s front LEDs blink in an unusual pattern with no documented error code, and charging behavior is erratic.
Undocumented Firmware / Logic Anomaly
Symptom
Charger’s internal fan runs loudly or continuously, even at low load or when idle.
Cooling Fan Overrun / Noise
Symptom
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
Charger’s Wi‑Fi connection is unstable or frequently drops, causing remote control and monitoring to fail intermittently.
Unstable Wireless Connectivity
| 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 |
Charger displays E06 and refuses to start; app may indicate ‘overvoltage’ or ‘input voltage too high’.
|
AC Input Overvoltage Protection | View Details |
| E07 |
Charger shows E07 and will not charge; app may show ‘undervoltage’ or ‘input voltage too low’.
|
AC Input Undervoltage Protection | View Details |
| E08 |
Charger displays E08 and stops charging; app may indicate ‘overtemperature’ or ‘thermal shutdown’.
|
Internal Overtemperature Protection | View Details |
| E09 |
Charger shows E09 and will not start; app may show ‘relay weld’ or ‘contactor fault’.
|
Stuck or Welded Output Contactor / Relay | View Details |
| E10 |
Charger displays E10 and refuses to charge; app may show ‘self-test failure’ or ‘internal diagnostic error’.
|
Internal Self-Test / Safety Circuit Failure | View Details |
| E11 |
Charger shows E11 and does not charge; app may indicate ‘CP short to ground’ or ‘pilot short’.
|
Control Pilot Short to Ground or Line | View Details |
| E12 |
Charger displays E12 and will not start; app may show ‘CP open circuit’ or ‘pilot open’.
|
Control Pilot Open Circuit | View Details |
| E13 |
Charger shows E13 and stops charging; app may indicate ‘DC leakage detected’ or ‘DC fault’.
|
DC Residual Current Detection Trip | View Details |
| E14 |
Charger displays E14 and will not charge; app may show ‘lock fault’ or ‘connector lock error’ (for units with cable lock).
|
Connector Locking Mechanism Failure | View Details |
| E15 |
Charger shows E15 and refuses to start; 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; 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; 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; 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; 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; app may show ‘internal power supply error’.
|
Low‑Voltage Auxiliary Power Supply Failure | View Details |
| E21 |
Charger shows E21 and will not charge; app may indicate ‘RTC error’ or ‘clock failure’.
|
Real‑Time Clock / Timekeeping Failure | View Details |
| E22 |
Charger displays E22 and refuses to start; 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; app may indicate ‘display error’ or ‘HMI fault’.
|
Display / Human‑Machine Interface Failure | View Details |
| E24 |
Charger displays E24 and stops charging; app may show ‘isolation fault’ or ‘insulation resistance low’.
|
Output Insulation / Isolation Fault | View Details |
| E25 |
Charger shows E25 and refuses to start; app may indicate ‘vehicle communication error’ or ‘EVSE‑EV handshake failed’.
|
EVSE‑Vehicle Handshake / PWM Communication Error | View Details |
| E26 |
Charger displays E26 and stops charging; app may show ‘session limit exceeded’ or ‘max energy/time reached’.
|
Charging Session Limit / Software Cutoff | View Details |
| E27 |
Charger shows E27 and will not charge; app may indicate ‘OCPP server error’ or ‘backend communication fault’ on networked units.
|
Backend / OCPP Communication Failure | View Details |
| E28 |
Charger displays E28 and refuses to start; app may show ‘configuration error’ or ‘parameter set invalid’.
|
Configuration / Parameter Corruption | View Details |
| E29 |
Charger shows E29 and will not charge; app may indicate ‘contact welding test failed’ or ‘pre‑charge error’.
|
Pre‑Charge / Contactor Test Failure | View Details |
| E30 |
Charger displays E30 and stops charging; app may show ‘temperature sensor error’ or ‘sensor open/short’.
|
Temperature Sensor Circuit Fault | View Details |
| – |
Charger does not power on at all; no LEDs or display, and it is not visible in the Enel X app.
|
No Power / Dead Unit | View Details |
| – |
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 |
| – |
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 |
| – |
Charger leaks water or shows condensation inside the transparent parts of the enclosure.
|
Water Ingress / Compromised IP Rating | View Details |
| – |
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 |
| – |
Charger powers on but will not start charging; vehicle shows ‘charging station not ready’ and no specific error code is displayed.
|
Standby State / Not Ready to Charge | View Details |
| – |
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 |
| – |
Charger trips the household breaker or RCD/GFCI whenever a charging session starts.
|
Nuisance Tripping of Upstream Protection | View Details |
| – |
Charger’s connector or cable becomes very hot during charging, sometimes causing charging to slow down or stop.
|
Overheating Connector / Cable | View Details |
| – |
Charger’s display is dim, flickering, or unreadable, but charging still works via the app.
|
Display Degradation / Backlight Failure | View Details |
| – |
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 |
| – |
Charger’s internal fan runs loudly or continuously, even at low load or when idle.
|
Cooling Fan Overrun / Noise | View Details |
| – |
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 |
| – |
Charger’s Wi‑Fi connection is unstable or frequently drops, causing remote control and monitoring to fail intermittently.
|
Unstable Wireless Connectivity | View Details |
No matching codes found
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