AMPROAD
AMPROAD 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; display shows E01 immediately after plugging into the vehicle.
Pilot Signal Communication Fault
E02
Charger displays E02 and refuses to start; vehicle does not lock the connector or begin charging.
Proximity / Plug Detection Fault
E03
Display shows E03 and charging stops or will not start; vehicle may show a ground fault or EVSE error.
Ground Fault / Leakage Current Detected
E04
Charger shows E04 and refuses to start; sometimes occurs after a lightning storm or power surge.
Overvoltage Input Protection Trip
E05
Charger displays E05 and stops charging; may occur during hot weather or long high-current sessions.
Overtemperature Protection Trip
E06
Charger shows E06 and will not charge; sometimes accompanied by a tripped house breaker or RCD.
Output Short Circuit / Relay Weld Detection
E07
Charger displays E07 and does not start; may appear after installation or rewiring.
Ground / Earth Connection Fault
E08
Charger shows E08 and stops charging shortly after starting; vehicle may show a charging error.
Overcurrent / Output Overload Fault
E09
Charger displays E09 and will not start; often appears immediately after plugging into the vehicle.
Vehicle Diode / Pilot Line Polarity Fault
E10
Charger shows E10 and does not respond to start commands; display may be dim or frozen.
Internal Communication / MCU Fault
E11
Charger displays E11 and refuses to start; often associated with Wi‑Fi or app connectivity issues.
Network / Communication Module Fault
E12
Charger shows E12 and cannot adjust current; smart load management features are unavailable.
Current Sensor Calibration / CT Fault
E13
Charger displays E13 and stops charging; may occur when the vehicle requests a current outside the charger’s capability.
Vehicle Request / Pilot Mismatch Fault
E14
Charger shows E14 and the display backlight may flicker; unit may reboot repeatedly.
Internal Low-Voltage Power Supply Fault
E15
Charger displays E15 and refuses to start; often after a failed RFID or app authorization attempt (for models with access control).
Authorization / Access Control Fault
E16
Charger shows E16 and the vehicle reports a charging system error; charging may start briefly then stop.
Insulation Resistance / Isolation Fault
E17
Charger displays E17 and cannot connect to the AMPROAD cloud or app; local charging may still work.
Cloud Connectivity / Backend Communication Fault
E18
Charger shows E18 and the display indicates a schedule or timer error; charging does not start at the expected time.
Real-Time Clock / Scheduling Fault
E19
Charger displays E19 and the vehicle reports that the EVSE is incompatible or not recognized.
EVSE Identification / Standard Compliance Fault
E20
Charger shows E20 and the display indicates a contactor test failure; unit will not energize output.
Contactor Self-Test / Feedback Fault
Symptom
Charger continues to show 'charging' or 'connected' status in the app even after the vehicle is unplugged.
Stuck Proximity / Plug Detection
Symptom
Charger display is blank or unreadable, but the vehicle still charges when plugged in.
Display / HMI Failure
Symptom
Charger enclosure vibrates noticeably or rattles when charging at high current.
Mechanical Vibration / Loose Mounting
Symptom
Charger intermittently stops charging mid-session with no error code; charging resumes if unplugged and replugged.
Intermittent Connection / Thermal Cutback
Symptom
Charger is physically hot to the touch on the enclosure during or after charging, even at moderate current.
Excessive Thermal Rise / Poor Ventilation
Symptom
Charger makes loud buzzing, humming, or clicking noises during operation.
Acoustic Noise from Contactor or Magnetic Components
Symptom
Charger or connector emits a burning smell or shows signs of melted plastic around the plug or cable entry.
Overheating Connection / Thermal Damage
Symptom
Charger powers on but will not start charging; no error code displayed, vehicle shows 'charging stopped' or 'unable to charge'.
General Start Failure / Pilot or Proximity Mis-detection
Symptom
Charger randomly reboots or restarts during idle or charging, without any visible error code.
Unstable Internal Power / Firmware Crash
Symptom
Charger trips the house breaker or RCD/GFCI as soon as charging starts.
Nuisance Tripping / High Inrush or Leakage
Symptom
Charger will not power on at all; no display, no LEDs, and no relay click when vehicle is connected.
No Power / Dead Unit
Symptom
Charger’s cable does not retract or hang properly on the holster; cable insulation appears stiff or cracked.
Cable Mechanical Wear / Environmental Damage
Symptom
Charger’s front panel buttons or touch controls do not respond reliably.
User Interface Input Failure
Symptom
Charger’s Wi‑Fi or Bluetooth connection is unstable; app frequently disconnects or cannot find the charger.
Wireless Connectivity Instability
Symptom
Vehicle reports that charging speed is lower than expected; AMPROAD app shows reduced current even though settings are at maximum.
Unexpected Current Derating
Symptom
Water or condensation visible inside the charger enclosure or behind the front cover.
Water Ingress / Seal Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Charger will not start charging; display shows E01 immediately after plugging into the vehicle.
|
Pilot Signal Communication Fault | View Details |
| E02 |
Charger displays E02 and refuses to start; vehicle does not lock the connector or begin charging.
|
Proximity / Plug Detection Fault | View Details |
| E03 |
Display shows E03 and charging stops or will not start; vehicle may show a ground fault or EVSE error.
|
Ground Fault / Leakage Current Detected | View Details |
| E04 |
Charger shows E04 and refuses to start; sometimes occurs after a lightning storm or power surge.
|
Overvoltage Input Protection Trip | View Details |
| E05 |
Charger displays E05 and stops charging; may occur during hot weather or long high-current sessions.
|
Overtemperature Protection Trip | View Details |
| E06 |
Charger shows E06 and will not charge; sometimes accompanied by a tripped house breaker or RCD.
|
Output Short Circuit / Relay Weld Detection | View Details |
| E07 |
Charger displays E07 and does not start; may appear after installation or rewiring.
|
Ground / Earth Connection Fault | View Details |
| E08 |
Charger shows E08 and stops charging shortly after starting; vehicle may show a charging error.
|
Overcurrent / Output Overload Fault | View Details |
| E09 |
Charger displays E09 and will not start; often appears immediately after plugging into the vehicle.
|
Vehicle Diode / Pilot Line Polarity Fault | View Details |
| E10 |
Charger shows E10 and does not respond to start commands; display may be dim or frozen.
|
Internal Communication / MCU Fault | View Details |
| E11 |
Charger displays E11 and refuses to start; often associated with Wi‑Fi or app connectivity issues.
|
Network / Communication Module Fault | View Details |
| E12 |
Charger shows E12 and cannot adjust current; smart load management features are unavailable.
|
Current Sensor Calibration / CT Fault | View Details |
| E13 |
Charger displays E13 and stops charging; may occur when the vehicle requests a current outside the charger’s capability.
|
Vehicle Request / Pilot Mismatch Fault | View Details |
| E14 |
Charger shows E14 and the display backlight may flicker; unit may reboot repeatedly.
|
Internal Low-Voltage Power Supply Fault | View Details |
| E15 |
Charger displays E15 and refuses to start; often after a failed RFID or app authorization attempt (for models with access control).
|
Authorization / Access Control Fault | View Details |
| E16 |
Charger shows E16 and the vehicle reports a charging system error; charging may start briefly then stop.
|
Insulation Resistance / Isolation Fault | View Details |
| E17 |
Charger displays E17 and cannot connect to the AMPROAD cloud or app; local charging may still work.
|
Cloud Connectivity / Backend Communication Fault | View Details |
| E18 |
Charger shows E18 and the display indicates a schedule or timer error; charging does not start at the expected time.
|
Real-Time Clock / Scheduling Fault | View Details |
| E19 |
Charger displays E19 and the vehicle reports that the EVSE is incompatible or not recognized.
|
EVSE Identification / Standard Compliance Fault | View Details |
| E20 |
Charger shows E20 and the display indicates a contactor test failure; unit will not energize output.
|
Contactor Self-Test / Feedback Fault | View Details |
| – |
Charger continues to show 'charging' or 'connected' status in the app even after the vehicle is unplugged.
|
Stuck Proximity / Plug Detection | View Details |
| – |
Charger display is blank or unreadable, but the vehicle still charges when plugged in.
|
Display / HMI Failure | View Details |
| – |
Charger enclosure vibrates noticeably or rattles when charging at high current.
|
Mechanical Vibration / Loose Mounting | View Details |
| – |
Charger intermittently stops charging mid-session with no error code; charging resumes if unplugged and replugged.
|
Intermittent Connection / Thermal Cutback | View Details |
| – |
Charger is physically hot to the touch on the enclosure during or after charging, even at moderate current.
|
Excessive Thermal Rise / Poor Ventilation | View Details |
| – |
Charger makes loud buzzing, humming, or clicking noises during operation.
|
Acoustic Noise from Contactor or Magnetic Components | View Details |
| – |
Charger or connector emits a burning smell or shows signs of melted plastic around the plug or cable entry.
|
Overheating Connection / Thermal Damage | View Details |
| – |
Charger powers on but will not start charging; no error code displayed, vehicle shows 'charging stopped' or 'unable to charge'.
|
General Start Failure / Pilot or Proximity Mis-detection | View Details |
| – |
Charger randomly reboots or restarts during idle or charging, without any visible error code.
|
Unstable Internal Power / Firmware Crash | View Details |
| – |
Charger trips the house breaker or RCD/GFCI as soon as charging starts.
|
Nuisance Tripping / High Inrush or Leakage | View Details |
| – |
Charger will not power on at all; no display, no LEDs, and no relay click when vehicle is connected.
|
No Power / Dead Unit | View Details |
| – |
Charger’s cable does not retract or hang properly on the holster; cable insulation appears stiff or cracked.
|
Cable Mechanical Wear / Environmental Damage | View Details |
| – |
Charger’s front panel buttons or touch controls do not respond reliably.
|
User Interface Input Failure | View Details |
| – |
Charger’s Wi‑Fi or Bluetooth connection is unstable; app frequently disconnects or cannot find the charger.
|
Wireless Connectivity Instability | View Details |
| – |
Vehicle reports that charging speed is lower than expected; AMPROAD app shows reduced current even though settings are at maximum.
|
Unexpected Current Derating | View Details |
| – |
Water or condensation visible inside the charger enclosure or behind the front cover.
|
Water Ingress / Seal Failure | View Details |
No matching codes found
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