EVBox EV Home Chargers Error Codes

E001

Charging session will not start; charger shows E001 on the LED display or in the EVBox app.

Proximity Pilot / Plug Detection Fault

E002

Charger displays E002 and refuses to start charging; EV does not lock the connector.

Control Pilot Communication Fault

E003

Charger shows E003 and immediately stops or refuses charging; vehicle may show a charging fault.

Ground Fault / Residual Current Detection Trip

E004

Charger displays E004 and does not energize; no relay click is heard when starting a session.

Contactor / Relay Welded or Failure to Close

E005

Charger shows E005; charging stops shortly after starting or will not start at all.

Overcurrent / Output Overload Protection

E006

Charger displays E006; unit will not start charging and may show a red LED status.

Overvoltage Protection (Input Supply Too High)

E007

Charger shows E007; unit does not charge and may show a flashing red/amber LED.

Undervoltage / Brownout Protection

E008

Charger displays E008; internal temperature warning; charging may derate or stop.

Overtemperature Protection

E009

Charger shows E009; LEDs may be off or stuck; unit unresponsive to start commands.

Internal Power Supply Failure

E010

Charger displays E010; charging stops; vehicle may report an earthing/grounding issue.

Protective Earth (PE) Fault

E011

Charger shows E011; charging stops; may coincide with grid imbalance or phase loss.

Phase Loss / Phase Imbalance (Three‑Phase Models)

E012

Charger displays E012; unit refuses to start charging; often after installation or configuration changes.

Configuration / Parameter Error

E013

Charger shows E013; charging stops; often associated with communication‑enabled models (e.g., EVBox Elvi, EVBox Pulsar‑type).

Vehicle Communication Timeout

E014

Charger displays E014; unit may still power on but cannot start a session; app may show firmware error.

Firmware Corruption / Software Fault

E015

Charger shows E015; LEDs may indicate a lock error; connector cannot be locked or unlocked.

Connector Locking Mechanism Fault (Socketed Models)

E016

Charger displays E016; unit may still charge but with reduced current or intermittent stops.

Internal Temperature Sensor Fault

E017

Charger shows E017; app or portal indicates metering error; energy readings may be incorrect.

Internal Energy Meter Fault

E018

Charger displays E018; app shows RFID reader error; RFID cards are not recognized.

RFID Reader Communication Fault

E019

Charger shows E019; app indicates Wi‑Fi or Ethernet module error; remote services unavailable.

Network Interface Module Fault

E020

Charger displays E020; app shows OCPP or backend communication error; smart charging features disabled.

Backend / OCPP Communication Fault

E021

Charger shows E021; load balancing between multiple EVBox units fails; charging current not shared correctly.

Local Load Balancing Communication Fault

E022

Charger displays E022; app indicates external energy meter communication error (for load balancing with external meter).

External Meter Communication Fault

E023

Charger shows E023; app indicates DC leakage detection error; charging disabled.

DC Residual Current Detection Fault

E024

Charger displays E024; app shows contactor feedback error; unit may click but not start charging.

Contactor Feedback / Weld Detection Fault

E025

Charger shows E025; app indicates insulation resistance error; charging disabled.

Insulation Monitoring Fault

E026

Charger displays E026; LEDs may flash in a pattern; unit stuck in boot loop.

Bootloader / Startup Failure

E027

Charger shows E027; app indicates clock or time synchronization error; scheduled charging unreliable.

Real‑Time Clock (RTC) / Time Sync Fault

E028

Charger displays E028; app indicates access control error; RFID or app authorization fails even with valid credentials.

Access Control Logic Fault

E029

Charger shows E029; app indicates display or LED panel error; status lights not working correctly.

LED/Display Panel Communication Fault

E030

Charger displays E030; app indicates internal communication bus error between control and power boards.

Internal CAN/I2C/SPI Bus Fault

Symptom

Charger frequently loses connection to Wi‑Fi or Ethernet; app shows charger offline intermittently.

Unstable Network Connectivity

Symptom

Charger makes unusual buzzing, humming, or clicking noises during operation.

Abnormal Acoustic Noise from Contactor or Power Electronics

Symptom

Charger or cable becomes excessively hot during normal charging; plastic may discolor; no specific error code.

Overheating Connector / Cable

Symptom

Charger trips the household RCD/GFCI or main breaker as soon as charging starts; no specific charger error code.

Nuisance Tripping / External RCD Trip

Symptom

Charger will not power on at all; no LEDs, no response in app.

No Power / Dead Unit

Symptom

Charger’s enclosure is loose, cracked, or vibrating; mounting appears unstable.

Mechanical Mounting / Enclosure Integrity Issue

Symptom

Charger’s front LEDs do not light or show incorrect colors, but charging still works.

Status LED Indication Fault

Symptom

Charging stops intermittently during a session without a clear error code; vehicle may resume after reconnection.

Intermittent Charging / Session Dropout

Symptom

RFID cards that used to work are no longer recognized; charger stays locked.

RFID Recognition / Access Control Issue (No Code)

Symptom

Scheduled charging does not start at the programmed time, or starts at unexpected times.

Scheduling / Timer Malfunction

Symptom

Unusual burning or chemical smell from the charger during or after charging.

Overheating Component / Insulation Breakdown

Symptom

Vehicle is plugged in but charging does not start; LEDs show ready/standby; no explicit error code.

No Charge Start / Session Not Initiating

Symptom

Visible water or condensation inside the EVBox enclosure or connector; occasional tripping or errors in wet weather.

Moisture Ingress / Water Damage