Hyundai 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
Charging will not start; charger display shows E01 shortly after plugging in the vehicle.
Proximity / Pilot Signal Communication Fault
E02
Charger shows E02 and refuses to start charging when the vehicle is connected.
Ground Fault / Residual Current Detection Trip
E03
Display shows E03 and charging stops immediately after starting.
Overcurrent / Relay Weld Detection
E04
Charger shows E04 and will not start; sometimes occurs during storms or grid fluctuations.
Input Overvoltage / Undervoltage Protection
E05
Charger displays E05 and stops charging after a few minutes of operation.
Overtemperature Protection – Internal Electronics
E06
Display shows E06 and charging cannot be initiated; sometimes occurs after a power outage.
Internal Communication Failure (Main Control Board to Power Board)
E07
Charger shows E07 and refuses to start; vehicle may report a charging station error.
PE (Protective Earth) Fault / Ground Continuity Error
E08
E08 appears and charging stops; often associated with tripping of the upstream breaker or RCD.
Line-to-Line or Line-to-Neutral Short / Internal Power Stage Fault
E09
Charger shows E09 and the vehicle does not recognize that it is connected.
Proximity Detection / Plug Lock Fault
E10
E10 appears and the charger stops; vehicle may show a charging error related to phase imbalance.
Phase Loss / Phase Imbalance (Three‑Phase Models)
E11
Charger shows E11 and refuses to start; often after a lightning storm or grid surge.
Surge Protection / SPD Failure
E12
E12 is displayed and the charger cannot authenticate or start a session when using RFID or app control.
User Authentication / RFID Reader Fault
E13
Charger shows E13 and cannot connect to the Hyundai EV charging app or network.
Network Communication / Wi‑Fi or Ethernet Fault
E14
E14 appears and the charger stops; vehicle may show a charging interrupted message.
DC Leakage Detection Fault
E15
Charger shows E15 and will not start; often after a failed firmware update.
Firmware Corruption / Bootloader Error
E16
E16 appears and the charger indicates a contactor feedback error.
Contactor Feedback / Position Sensor Fault
E17
Charger shows E17 and the display or LEDs behave erratically.
Low Voltage Power Supply Fault (SMPS Error)
E18
E18 appears and the charger reports a metering or energy measurement error.
Internal Energy Meter / Current Sensor Fault
E19
Charger shows E19 and the vehicle reports that the charging station is incompatible or not recognized.
EVSE Protocol / PWM Signal Fault
E20
E20 appears and the charger indicates an internal memory or configuration error.
NVRAM / Configuration Memory Fault
Symptom
Charger display or LED indicators are dim, flickering, or completely blank while charging still works.
User Interface / Display Failure
Symptom
Charger does not power on at all; no LEDs or display, even though the breaker is on.
No Power / Input Supply Failure
Symptom
Charger emits a burning smell or visible smoke during or after a charging session.
Internal Component Overheating / Burnout
Symptom
Charger enclosure shows signs of physical damage, cracks, or loose mounting on the wall.
Mechanical Damage / Mounting Failure
Symptom
Charger makes a clicking sound repeatedly without starting charging.
Contactor Chatter / Unstable Control Signal
Symptom
Charger makes a loud humming or buzzing noise during operation.
Acoustic Noise from Contactor or Transformer
Symptom
Charger or cable becomes excessively hot to the touch during normal charging.
Overheating of Connector or Internal Terminals
Symptom
Charger output current is lower than expected; vehicle charges very slowly even though settings appear correct.
Current Derating / Limited Output
Symptom
Charger starts charging but stops intermittently without showing an error code; vehicle reports charging interrupted.
Intermittent Charging / Unstable Connection
Symptom
Charger trips the household RCD or breaker as soon as a vehicle is plugged in.
Immediate Earth Leakage or Short on Output
Symptom
Charger’s built‑in cable management (hook or holster) is broken or cannot securely hold the connector.
Mechanical Wear of Cable Holder / Holster
Symptom
Charger’s internal fan (if equipped) is noisy or does not run even under high load.
Cooling Fan Failure
Symptom
Hyundai charger cannot connect to the home Wi‑Fi network; app shows the charger as offline.
Wireless Connectivity Issue
Symptom
RFID cards or tags are not recognized; charger stays locked even though no error code is shown.
Access Control Malfunction (RFID Not Working)
Symptom
Vehicle is plugged in but charging does not start; charger LEDs show ready/standby with no error code.
Charging Session Not Initiating
Symptom
Vehicle reports that the charging station is locked or not authorized, even though no error is shown on the charger.
Authorization State Mismatch
Symptom
Visible arcing or sparking when connecting or disconnecting the Type 2 plug.
Contact Wear / Delayed Contactor Opening
Symptom
Water or condensation visible inside the Hyundai wallbox housing.
Moisture Ingress / Seal Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Charging will not start; charger display shows E01 shortly after plugging in the vehicle.
|
Proximity / Pilot Signal Communication Fault | View Details |
| E02 |
Charger shows E02 and refuses to start charging when the vehicle is connected.
|
Ground Fault / Residual Current Detection Trip | View Details |
| E03 |
Display shows E03 and charging stops immediately after starting.
|
Overcurrent / Relay Weld Detection | View Details |
| E04 |
Charger shows E04 and will not start; sometimes occurs during storms or grid fluctuations.
|
Input Overvoltage / Undervoltage Protection | View Details |
| E05 |
Charger displays E05 and stops charging after a few minutes of operation.
|
Overtemperature Protection – Internal Electronics | View Details |
| E06 |
Display shows E06 and charging cannot be initiated; sometimes occurs after a power outage.
|
Internal Communication Failure (Main Control Board to Power Board) | View Details |
| E07 |
Charger shows E07 and refuses to start; vehicle may report a charging station error.
|
PE (Protective Earth) Fault / Ground Continuity Error | View Details |
| E08 |
E08 appears and charging stops; often associated with tripping of the upstream breaker or RCD.
|
Line-to-Line or Line-to-Neutral Short / Internal Power Stage Fault | View Details |
| E09 |
Charger shows E09 and the vehicle does not recognize that it is connected.
|
Proximity Detection / Plug Lock Fault | View Details |
| E10 |
E10 appears and the charger stops; vehicle may show a charging error related to phase imbalance.
|
Phase Loss / Phase Imbalance (Three‑Phase Models) | View Details |
| E11 |
Charger shows E11 and refuses to start; often after a lightning storm or grid surge.
|
Surge Protection / SPD Failure | View Details |
| E12 |
E12 is displayed and the charger cannot authenticate or start a session when using RFID or app control.
|
User Authentication / RFID Reader Fault | View Details |
| E13 |
Charger shows E13 and cannot connect to the Hyundai EV charging app or network.
|
Network Communication / Wi‑Fi or Ethernet Fault | View Details |
| E14 |
E14 appears and the charger stops; vehicle may show a charging interrupted message.
|
DC Leakage Detection Fault | View Details |
| E15 |
Charger shows E15 and will not start; often after a failed firmware update.
|
Firmware Corruption / Bootloader Error | View Details |
| E16 |
E16 appears and the charger indicates a contactor feedback error.
|
Contactor Feedback / Position Sensor Fault | View Details |
| E17 |
Charger shows E17 and the display or LEDs behave erratically.
|
Low Voltage Power Supply Fault (SMPS Error) | View Details |
| E18 |
E18 appears and the charger reports a metering or energy measurement error.
|
Internal Energy Meter / Current Sensor Fault | View Details |
| E19 |
Charger shows E19 and the vehicle reports that the charging station is incompatible or not recognized.
|
EVSE Protocol / PWM Signal Fault | View Details |
| E20 |
E20 appears and the charger indicates an internal memory or configuration error.
|
NVRAM / Configuration Memory Fault | View Details |
| – |
Charger display or LED indicators are dim, flickering, or completely blank while charging still works.
|
User Interface / Display Failure | View Details |
| – |
Charger does not power on at all; no LEDs or display, even though the breaker is on.
|
No Power / Input Supply Failure | View Details |
| – |
Charger emits a burning smell or visible smoke during or after a charging session.
|
Internal Component Overheating / Burnout | View Details |
| – |
Charger enclosure shows signs of physical damage, cracks, or loose mounting on the wall.
|
Mechanical Damage / Mounting Failure | View Details |
| – |
Charger makes a clicking sound repeatedly without starting charging.
|
Contactor Chatter / Unstable Control Signal | View Details |
| – |
Charger makes a loud humming or buzzing noise during operation.
|
Acoustic Noise from Contactor or Transformer | View Details |
| – |
Charger or cable becomes excessively hot to the touch during normal charging.
|
Overheating of Connector or Internal Terminals | View Details |
| – |
Charger output current is lower than expected; vehicle charges very slowly even though settings appear correct.
|
Current Derating / Limited Output | View Details |
| – |
Charger starts charging but stops intermittently without showing an error code; vehicle reports charging interrupted.
|
Intermittent Charging / Unstable Connection | View Details |
| – |
Charger trips the household RCD or breaker as soon as a vehicle is plugged in.
|
Immediate Earth Leakage or Short on Output | View Details |
| – |
Charger’s built‑in cable management (hook or holster) is broken or cannot securely hold the connector.
|
Mechanical Wear of Cable Holder / Holster | View Details |
| – |
Charger’s internal fan (if equipped) is noisy or does not run even under high load.
|
Cooling Fan Failure | View Details |
| – |
Hyundai charger cannot connect to the home Wi‑Fi network; app shows the charger as offline.
|
Wireless Connectivity Issue | View Details |
| – |
RFID cards or tags are not recognized; charger stays locked even though no error code is shown.
|
Access Control Malfunction (RFID Not Working) | View Details |
| – |
Vehicle is plugged in but charging does not start; charger LEDs show ready/standby with no error code.
|
Charging Session Not Initiating | View Details |
| – |
Vehicle reports that the charging station is locked or not authorized, even though no error is shown on the charger.
|
Authorization State Mismatch | View Details |
| – |
Visible arcing or sparking when connecting or disconnecting the Type 2 plug.
|
Contact Wear / Delayed Contactor Opening | View Details |
| – |
Water or condensation visible inside the Hyundai wallbox housing.
|
Moisture Ingress / Seal Failure | View Details |
No matching codes found
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