Emporia
Emporia 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; app or LED indicates E01 immediately after plugging in vehicle.
Pilot Signal Communication Fault
E02
Charging session stops immediately with E02; LEDs may flash red; vehicle never begins to draw current.
Proximity / Latch Switch Fault
E03
Charger displays E03 and refuses to start; app may indicate 'Ground fault detected' or 'GFCI trip'.
Ground Fault / Leakage Current Detected
E04
Charger shows E04 and will not charge; the app may show 'Ground not detected' or 'Improper grounding'.
Ground Connection Loss / Ground Integrity Fault
E05
Charger displays E05; the app may show 'Overcurrent detected' or 'Current exceeded limit'; charging stops abruptly.
Overcurrent / Output Overload Protection Trip
E06
Charger shows E06 and refuses to start; the app may indicate 'Overvoltage' or 'Line voltage too high'.
Input Overvoltage Protection
E07
Charger displays E07; the app may show 'Undervoltage' or 'Line voltage too low'; charging will not start or stops.
Input Undervoltage Protection
E08
Charger shows E08; the app may indicate 'Contactor fault' or 'Relay weld detection'; the unit will not energize output.
Main Contactor / Relay Fault
E09
Charger displays E09; the app may show 'Temperature too high' or 'Overtemperature shutdown'; charging stops mid-session.
Internal Overtemperature Protection
E10
Charger shows E10; the app may indicate 'Temperature sensor fault' or 'Sensor open/short'; the unit may refuse to start.
Temperature Sensor Circuit Error
E11
Charger displays E11; the app may show 'Wi-Fi connection error' or 'Network fault'; charging may still work locally but app control fails.
Wi-Fi Communication Failure
E12
Charger shows E12; the app may indicate 'Cloud communication error' or 'Server unreachable'; local charging works but remote control/scheduling fails.
Cloud / Backend Communication Fault
E13
Charger displays E13; the app may show 'CT sensor error' or 'Load management fault'; dynamic load management or solar optimization stops working.
Current Transformer (CT) Sensor Fault
E14
Charger shows E14; app may indicate 'Pilot duty cycle error' or 'Invalid pilot signal'; vehicle refuses to charge.
Pilot Duty Cycle / PWM Encoding Fault
E15
Charger displays E15; app may show 'Stuck relay' or 'Output still live when off'; unit locks out charging.
Relay Weld / Stuck Output Detection
E16
Charger shows E16; app may indicate 'Internal fault' or 'Self-test failed'; unit will not start charging.
Internal Self-Test / Watchdog Failure
E17
Charger displays E17; app may show 'EVSE lockout' or 'Multiple faults detected'; unit remains disabled.
Latched Safety Lockout
E18
Charger shows E18; app may indicate 'EV not detected' even when plugged in; no charging starts.
Vehicle Presence Detection Fault
E19
Charger displays E19; app may show 'Schedule conflict' or 'Load management limit exceeded'; charging does not start when expected.
Smart Load Management / Scheduling Lockout
E20
Charger shows E20; app may indicate 'Phase error' or 'Line configuration fault'; unit will not charge.
Line Configuration / Phase Detection Error
Symptom
Breaker trips immediately or shortly after starting a charge session.
Short Circuit or Overload on EVSE Circuit
Symptom
Charger clicks repeatedly without starting a charge; vehicle does not begin charging.
Contactor Chatter / Failed Start Sequence
Symptom
Charger completely dead: no LEDs, no display, no response in app, vehicle does not detect connection.
No Power / Dead Unit
Symptom
Charger does not resume charging automatically after a brief power outage.
Auto-Restart / Resume Failure
Symptom
Charger emits a burning or electrical smell during or after charging.
Overheating / Component Breakdown
Symptom
Charger’s front LEDs or display are dim, flickering, or completely out, but charging still works.
Indicator / Display Failure
Symptom
Charging is very slow compared to the expected rate; the vehicle shows low kW even though the charger is rated higher.
Reduced Output Current / Derating
Symptom
J1772 connector is difficult to insert or remove from the vehicle inlet.
Mechanical Connector Fitment Issue
Symptom
The Emporia app cannot find or control the charger, but the charger appears to function manually.
Local Network / Pairing Issue
Symptom
The Emporia app shows incorrect or zero energy usage for charging sessions.
Incorrect Energy Measurement
Symptom
The charger housing becomes very hot to the touch during normal charging.
Excessive Thermal Rise / Overheating Enclosure
Symptom
The charger hums or vibrates noticeably even when not charging.
Idle Transformer or Power Supply Noise
Symptom
The charger leaks water from the bottom of the enclosure after rain or washing nearby surfaces.
Water Ingress / Enclosure Seal Failure
Symptom
The charger makes a loud buzzing or chattering noise during charging.
Noisy Contactor or Coil Vibration
Symptom
The charger starts charging but stops randomly after a few minutes; no error code remains latched.
Intermittent Charging Interruption
Symptom
The user receives a mild shock or tingling sensation when touching the vehicle or charger during or after charging.
Stray Voltage / Grounding Issue
Symptom
Vehicle reports 'Charging station error' or 'Unable to charge' but charger shows ready; no error code displayed.
Intermittent Communication / Compatibility Issue
Symptom
Visible arcing or sparking when plugging in or unplugging the J1772 connector.
Abnormal Arcing at Connector
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Charger will not start charging; app or LED indicates E01 immediately after plugging in vehicle.
|
Pilot Signal Communication Fault | View Details |
| E02 |
Charging session stops immediately with E02; LEDs may flash red; vehicle never begins to draw current.
|
Proximity / Latch Switch Fault | View Details |
| E03 |
Charger displays E03 and refuses to start; app may indicate 'Ground fault detected' or 'GFCI trip'.
|
Ground Fault / Leakage Current Detected | View Details |
| E04 |
Charger shows E04 and will not charge; the app may show 'Ground not detected' or 'Improper grounding'.
|
Ground Connection Loss / Ground Integrity Fault | View Details |
| E05 |
Charger displays E05; the app may show 'Overcurrent detected' or 'Current exceeded limit'; charging stops abruptly.
|
Overcurrent / Output Overload Protection Trip | View Details |
| E06 |
Charger shows E06 and refuses to start; the app may indicate 'Overvoltage' or 'Line voltage too high'.
|
Input Overvoltage Protection | View Details |
| E07 |
Charger displays E07; the app may show 'Undervoltage' or 'Line voltage too low'; charging will not start or stops.
|
Input Undervoltage Protection | View Details |
| E08 |
Charger shows E08; the app may indicate 'Contactor fault' or 'Relay weld detection'; the unit will not energize output.
|
Main Contactor / Relay Fault | View Details |
| E09 |
Charger displays E09; the app may show 'Temperature too high' or 'Overtemperature shutdown'; charging stops mid-session.
|
Internal Overtemperature Protection | View Details |
| E10 |
Charger shows E10; the app may indicate 'Temperature sensor fault' or 'Sensor open/short'; the unit may refuse to start.
|
Temperature Sensor Circuit Error | View Details |
| E11 |
Charger displays E11; the app may show 'Wi-Fi connection error' or 'Network fault'; charging may still work locally but app control fails.
|
Wi-Fi Communication Failure | View Details |
| E12 |
Charger shows E12; the app may indicate 'Cloud communication error' or 'Server unreachable'; local charging works but remote control/scheduling fails.
|
Cloud / Backend Communication Fault | View Details |
| E13 |
Charger displays E13; the app may show 'CT sensor error' or 'Load management fault'; dynamic load management or solar optimization stops working.
|
Current Transformer (CT) Sensor Fault | View Details |
| E14 |
Charger shows E14; app may indicate 'Pilot duty cycle error' or 'Invalid pilot signal'; vehicle refuses to charge.
|
Pilot Duty Cycle / PWM Encoding Fault | View Details |
| E15 |
Charger displays E15; app may show 'Stuck relay' or 'Output still live when off'; unit locks out charging.
|
Relay Weld / Stuck Output Detection | View Details |
| E16 |
Charger shows E16; app may indicate 'Internal fault' or 'Self-test failed'; unit will not start charging.
|
Internal Self-Test / Watchdog Failure | View Details |
| E17 |
Charger displays E17; app may show 'EVSE lockout' or 'Multiple faults detected'; unit remains disabled.
|
Latched Safety Lockout | View Details |
| E18 |
Charger shows E18; app may indicate 'EV not detected' even when plugged in; no charging starts.
|
Vehicle Presence Detection Fault | View Details |
| E19 |
Charger displays E19; app may show 'Schedule conflict' or 'Load management limit exceeded'; charging does not start when expected.
|
Smart Load Management / Scheduling Lockout | View Details |
| E20 |
Charger shows E20; app may indicate 'Phase error' or 'Line configuration fault'; unit will not charge.
|
Line Configuration / Phase Detection Error | View Details |
| – |
Breaker trips immediately or shortly after starting a charge session.
|
Short Circuit or Overload on EVSE Circuit | View Details |
| – |
Charger clicks repeatedly without starting a charge; vehicle does not begin charging.
|
Contactor Chatter / Failed Start Sequence | View Details |
| – |
Charger completely dead: no LEDs, no display, no response in app, vehicle does not detect connection.
|
No Power / Dead Unit | View Details |
| – |
Charger does not resume charging automatically after a brief power outage.
|
Auto-Restart / Resume Failure | View Details |
| – |
Charger emits a burning or electrical smell during or after charging.
|
Overheating / Component Breakdown | View Details |
| – |
Charger’s front LEDs or display are dim, flickering, or completely out, but charging still works.
|
Indicator / Display Failure | View Details |
| – |
Charging is very slow compared to the expected rate; the vehicle shows low kW even though the charger is rated higher.
|
Reduced Output Current / Derating | View Details |
| – |
J1772 connector is difficult to insert or remove from the vehicle inlet.
|
Mechanical Connector Fitment Issue | View Details |
| – |
The Emporia app cannot find or control the charger, but the charger appears to function manually.
|
Local Network / Pairing Issue | View Details |
| – |
The Emporia app shows incorrect or zero energy usage for charging sessions.
|
Incorrect Energy Measurement | View Details |
| – |
The charger housing becomes very hot to the touch during normal charging.
|
Excessive Thermal Rise / Overheating Enclosure | View Details |
| – |
The charger hums or vibrates noticeably even when not charging.
|
Idle Transformer or Power Supply Noise | View Details |
| – |
The charger leaks water from the bottom of the enclosure after rain or washing nearby surfaces.
|
Water Ingress / Enclosure Seal Failure | View Details |
| – |
The charger makes a loud buzzing or chattering noise during charging.
|
Noisy Contactor or Coil Vibration | View Details |
| – |
The charger starts charging but stops randomly after a few minutes; no error code remains latched.
|
Intermittent Charging Interruption | View Details |
| – |
The user receives a mild shock or tingling sensation when touching the vehicle or charger during or after charging.
|
Stray Voltage / Grounding Issue | View Details |
| – |
Vehicle reports 'Charging station error' or 'Unable to charge' but charger shows ready; no error code displayed.
|
Intermittent Communication / Compatibility Issue | View Details |
| – |
Visible arcing or sparking when plugging in or unplugging the J1772 connector.
|
Abnormal Arcing at Connector | View Details |
No matching codes found
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