Polestar
Polestar 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 Fault’ and charger display shows E01 immediately after plugging in.
Pilot Signal Communication Failure
E02
Charging session stops immediately; display shows E02 and vehicle reports ‘Ground Fault’ or ‘Earth Fault’.
Ground Fault Interruption (GFCI Trip)
E03
Charger display shows E03 and refuses to start; vehicle reports ‘No Earth’ or ‘Charging Station Fault – Ground’.
Protective Earth (PE) Loss or High Impedance
E04
Charger shows E04 and does not energize; vehicle may show ‘Line Voltage Error’ or ‘Incorrect Supply’.
Supply Voltage Out of Range
E05
Display shows E05; charger fan may run but charging does not start; sometimes occurs during hot weather or long sessions.
Overtemperature Protection Trip
E06
Charger shows E06 and stops charging; vehicle may show ‘Overcurrent’ or ‘Charging Station Error’.
Output Overcurrent Detected
E07
Display shows E07; charger refuses to start; sometimes occurs after a power outage or surge.
Internal Contactor Welded or Feedback Error
E08
Charger shows E08 and does not start; vehicle may show ‘Proximity Fault’ or ‘Connector Error’.
Proximity Pilot (PP) Circuit Fault
E09
Display shows E09; charger may start briefly then stop; vehicle reports ‘Insulation Fault’ or ‘Isolation Error’.
Insulation Resistance Low (DC Leakage / Isolation Fault)
E10
Charger display shows E10; no charging; often appears after incorrect wiring or neutral issues.
Line-to-Neutral / Phase Configuration Error
E11
Charger shows E11; charging stops unexpectedly; may be accompanied by a loud click from inside the unit.
Emergency Stop or Safety Interlock Activated
E12
Display shows E12; charger will not start; often appears after firmware update or power event.
Internal Firmware or Configuration Error
E13
Charger shows E13; network icon may flash; remote control via app not available.
Communication Bus Error (Internal or External)
E14
Display shows E14; charger does not respond to RFID cards or user authentication fails.
RFID Reader or User Authentication Fault
E15
Charger shows E15; scheduled charging and load management features do not work correctly.
Real-Time Clock (RTC) or Time Sync Error
E16
Display shows E16; charger indicates ‘Lock Fault’; connector locking pin may not engage or release.
Connector Locking Mechanism Failure
E17
Charger shows E17; display may indicate ‘Meter Error’; energy readings are missing or incorrect.
Internal Energy Meter or Current Sensor Fault
E18
Charger shows E18; load balancing with other chargers or home energy system does not function.
External Load Management Communication Fault
E19
Charger shows E19; display may indicate ‘RCD Fault’; charging not allowed.
Internal Residual Current Device (RCD) Fault
E20
Charger shows E20; display may indicate ‘Fan Fault’ or ‘Cooling Error’; unit may derate current or stop.
Cooling System Failure
E21
Charger shows E21; display may indicate ‘Display Error’ or screen remains blank while LEDs work.
User Interface / Display Module Fault
E22
Charger shows E22; LEDs may flash in a pattern; unit does not start charging.
Self-Test Failure on Power-Up
E23
Charger shows E23; display may indicate ‘Vehicle Communication Error’; vehicle does not transition to charging state.
EVSE-to-EV Handshake Failure
E24
Charger shows E24; display may indicate ‘Phase Imbalance’; charging may be reduced or stopped (three‑phase models).
Phase Current Imbalance or Loss
E25
Charger shows E25; display may indicate ‘Overvoltage EV’; vehicle reports high voltage at inlet.
Output Overvoltage Detected
E26
Charger shows E26; display may indicate ‘Undervoltage EV’; vehicle reports low voltage at inlet.
Output Undervoltage Detected
E27
Charger shows E27; display may indicate ‘Locking Error EV’; vehicle cannot lock to connector.
Vehicle-Side Lock Coordination Fault
E28
Charger shows E28; display may indicate ‘Internal Power Supply Error’; LEDs may be dim or flicker.
Low-Voltage Auxiliary Power Supply Fault
E29
Charger shows E29; display may indicate ‘Configuration Lock’; installer settings cannot be changed.
Installer Configuration Lockout
E30
Charger shows E30; display may indicate ‘Unknown Error’; no clear pattern; may occur intermittently.
Generic Internal Fault / Undefined Error
Symptom
Charger cable insulation shows cracks, cuts, or severe kinks, though charging may still work.
Mechanical Damage to Charge Cable
Symptom
Charger completely dead – no lights, no display, no response when vehicle is plugged in.
No Power to EVSE
Symptom
Charger display or LEDs flicker or dim when other large appliances in the home turn on.
Supply Voltage Fluctuation / Sag
Symptom
Charger emits a loud humming or buzzing noise during operation, louder than normal transformer hum.
Excessive Vibration or Acoustic Noise from Power Components
Symptom
Charger enclosure vibrates or rattles against the wall during charging, especially at high current.
Mechanical Vibration / Mounting Issue
Symptom
Charger frequently reports ‘Charging stopped by vehicle’ even when the vehicle is set to charge.
Vehicle-Initiated Charge Termination Misinterpreted
Symptom
Charger intermittently stops charging mid‑session without any error code; restarting usually resumes charging.
Intermittent Power or Control Interruption
Symptom
Charger or cable becomes unusually hot to the touch during charging, though charging continues.
Overheating of Cable or Connectors
Symptom
Charger powers on but will not start charging; vehicle shows ‘Charging Station Not Ready’ with no specific error code.
Standby State Not Transitioning to Ready
Symptom
Charger trips the house breaker or RCD immediately when a charging session starts.
Short Circuit or High Leakage on Start
Symptom
Charger’s front panel or enclosure is cracked or physically damaged, but it still appears to function.
Mechanical Enclosure Damage
Symptom
Charger’s scheduled charging does not start at the programmed time, but manual start works.
Scheduling / Timer Function Malfunction
Symptom
Charger’s Wi‑Fi connection frequently drops, causing remote control and monitoring to fail intermittently.
Unstable Wireless Connectivity
Symptom
Charging is very slow compared to charger rating; vehicle reports reduced charging power but no charger error code.
Current Derating or Limited Output
Symptom
RFID cards or tags are not recognized, but the charger otherwise works when set to ‘open’ mode.
RFID Reading Performance Degradation
Symptom
Visible arcing or sparking when connecting or disconnecting the vehicle, sometimes accompanied by a popping sound.
Contact Arcing at Connector or Contactor
Symptom
Water or condensation visible inside the charger enclosure or behind the front cover.
Moisture Ingress / Enclosure Seal Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Charger will not start charging; vehicle shows ‘Charging Fault’ and charger display shows E01 immediately after plugging in.
|
Pilot Signal Communication Failure | View Details |
| E02 |
Charging session stops immediately; display shows E02 and vehicle reports ‘Ground Fault’ or ‘Earth Fault’.
|
Ground Fault Interruption (GFCI Trip) | View Details |
| E03 |
Charger display shows E03 and refuses to start; vehicle reports ‘No Earth’ or ‘Charging Station Fault – Ground’.
|
Protective Earth (PE) Loss or High Impedance | View Details |
| E04 |
Charger shows E04 and does not energize; vehicle may show ‘Line Voltage Error’ or ‘Incorrect Supply’.
|
Supply Voltage Out of Range | View Details |
| E05 |
Display shows E05; charger fan may run but charging does not start; sometimes occurs during hot weather or long sessions.
|
Overtemperature Protection Trip | View Details |
| E06 |
Charger shows E06 and stops charging; vehicle may show ‘Overcurrent’ or ‘Charging Station Error’.
|
Output Overcurrent Detected | View Details |
| E07 |
Display shows E07; charger refuses to start; sometimes occurs after a power outage or surge.
|
Internal Contactor Welded or Feedback Error | View Details |
| E08 |
Charger shows E08 and does not start; vehicle may show ‘Proximity Fault’ or ‘Connector Error’.
|
Proximity Pilot (PP) Circuit Fault | View Details |
| E09 |
Display shows E09; charger may start briefly then stop; vehicle reports ‘Insulation Fault’ or ‘Isolation Error’.
|
Insulation Resistance Low (DC Leakage / Isolation Fault) | View Details |
| E10 |
Charger display shows E10; no charging; often appears after incorrect wiring or neutral issues.
|
Line-to-Neutral / Phase Configuration Error | View Details |
| E11 |
Charger shows E11; charging stops unexpectedly; may be accompanied by a loud click from inside the unit.
|
Emergency Stop or Safety Interlock Activated | View Details |
| E12 |
Display shows E12; charger will not start; often appears after firmware update or power event.
|
Internal Firmware or Configuration Error | View Details |
| E13 |
Charger shows E13; network icon may flash; remote control via app not available.
|
Communication Bus Error (Internal or External) | View Details |
| E14 |
Display shows E14; charger does not respond to RFID cards or user authentication fails.
|
RFID Reader or User Authentication Fault | View Details |
| E15 |
Charger shows E15; scheduled charging and load management features do not work correctly.
|
Real-Time Clock (RTC) or Time Sync Error | View Details |
| E16 |
Display shows E16; charger indicates ‘Lock Fault’; connector locking pin may not engage or release.
|
Connector Locking Mechanism Failure | View Details |
| E17 |
Charger shows E17; display may indicate ‘Meter Error’; energy readings are missing or incorrect.
|
Internal Energy Meter or Current Sensor Fault | View Details |
| E18 |
Charger shows E18; load balancing with other chargers or home energy system does not function.
|
External Load Management Communication Fault | View Details |
| E19 |
Charger shows E19; display may indicate ‘RCD Fault’; charging not allowed.
|
Internal Residual Current Device (RCD) Fault | View Details |
| E20 |
Charger shows E20; display may indicate ‘Fan Fault’ or ‘Cooling Error’; unit may derate current or stop.
|
Cooling System Failure | View Details |
| E21 |
Charger shows E21; display may indicate ‘Display Error’ or screen remains blank while LEDs work.
|
User Interface / Display Module Fault | View Details |
| E22 |
Charger shows E22; LEDs may flash in a pattern; unit does not start charging.
|
Self-Test Failure on Power-Up | View Details |
| E23 |
Charger shows E23; display may indicate ‘Vehicle Communication Error’; vehicle does not transition to charging state.
|
EVSE-to-EV Handshake Failure | View Details |
| E24 |
Charger shows E24; display may indicate ‘Phase Imbalance’; charging may be reduced or stopped (three‑phase models).
|
Phase Current Imbalance or Loss | View Details |
| E25 |
Charger shows E25; display may indicate ‘Overvoltage EV’; vehicle reports high voltage at inlet.
|
Output Overvoltage Detected | View Details |
| E26 |
Charger shows E26; display may indicate ‘Undervoltage EV’; vehicle reports low voltage at inlet.
|
Output Undervoltage Detected | View Details |
| E27 |
Charger shows E27; display may indicate ‘Locking Error EV’; vehicle cannot lock to connector.
|
Vehicle-Side Lock Coordination Fault | View Details |
| E28 |
Charger shows E28; display may indicate ‘Internal Power Supply Error’; LEDs may be dim or flicker.
|
Low-Voltage Auxiliary Power Supply Fault | View Details |
| E29 |
Charger shows E29; display may indicate ‘Configuration Lock’; installer settings cannot be changed.
|
Installer Configuration Lockout | View Details |
| E30 |
Charger shows E30; display may indicate ‘Unknown Error’; no clear pattern; may occur intermittently.
|
Generic Internal Fault / Undefined Error | View Details |
| – |
Charger cable insulation shows cracks, cuts, or severe kinks, though charging may still work.
|
Mechanical Damage to Charge Cable | View Details |
| – |
Charger completely dead – no lights, no display, no response when vehicle is plugged in.
|
No Power to EVSE | View Details |
| – |
Charger display or LEDs flicker or dim when other large appliances in the home turn on.
|
Supply Voltage Fluctuation / Sag | View Details |
| – |
Charger emits a loud humming or buzzing noise during operation, louder than normal transformer hum.
|
Excessive Vibration or Acoustic Noise from Power Components | View Details |
| – |
Charger enclosure vibrates or rattles against the wall during charging, especially at high current.
|
Mechanical Vibration / Mounting Issue | View Details |
| – |
Charger frequently reports ‘Charging stopped by vehicle’ even when the vehicle is set to charge.
|
Vehicle-Initiated Charge Termination Misinterpreted | View Details |
| – |
Charger intermittently stops charging mid‑session without any error code; restarting usually resumes charging.
|
Intermittent Power or Control Interruption | View Details |
| – |
Charger or cable becomes unusually hot to the touch during charging, though charging continues.
|
Overheating of Cable or Connectors | View Details |
| – |
Charger powers on but will not start charging; vehicle shows ‘Charging Station Not Ready’ with no specific error code.
|
Standby State Not Transitioning to Ready | View Details |
| – |
Charger trips the house breaker or RCD immediately when a charging session starts.
|
Short Circuit or High Leakage on Start | View Details |
| – |
Charger’s front panel or enclosure is cracked or physically damaged, but it still appears to function.
|
Mechanical Enclosure Damage | View Details |
| – |
Charger’s scheduled charging does not start at the programmed time, but manual start works.
|
Scheduling / Timer Function Malfunction | View Details |
| – |
Charger’s Wi‑Fi connection frequently drops, causing remote control and monitoring to fail intermittently.
|
Unstable Wireless Connectivity | View Details |
| – |
Charging is very slow compared to charger rating; vehicle reports reduced charging power but no charger error code.
|
Current Derating or Limited Output | View Details |
| – |
RFID cards or tags are not recognized, but the charger otherwise works when set to ‘open’ mode.
|
RFID Reading Performance Degradation | View Details |
| – |
Visible arcing or sparking when connecting or disconnecting the vehicle, sometimes accompanied by a popping sound.
|
Contact Arcing at Connector or Contactor | View Details |
| – |
Water or condensation visible inside the charger enclosure or behind the front cover.
|
Moisture Ingress / Enclosure Seal Failure | View Details |
No matching codes found
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