Sun Country Highway
Sun Country Highway 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 Station Error’ and Sun Country Highway unit displays E01 shortly after plugging in.
Pilot Signal Communication Fault
E02
Charger powers up but immediately shows E02 and refuses to energize the vehicle; some units may show a red LED and E02 on the LCD.
Ground Fault / Leakage Current Detected
E03
Display shows E03 and charging does not start; unit may click once and then drop out.
Contactor / Relay Welded or Stuck
E04
Charger shows E04 and will not charge; often occurs after a wiring change or new installation.
Line Voltage Out of Range
E05
Display shows E05; unit powers up but will not close the contactor to start charging.
Ground Continuity / Protective Earth Fault
E06
Charger shows E06 and stops charging or refuses to start; may occur intermittently during hot weather.
Overtemperature Protection Trip
E07
Display shows E07; charger will not initiate charging when plugged into any vehicle.
Proximity / Latch Switch Fault in J1772 Handle
E08
Charger shows E08 and stops charging shortly after start; may be accompanied by a clicking contactor.
Current Sensor / CT Fault
E09
Display shows E09; charger may start then immediately stop, or refuse to start at all.
Stuck Relay / Contactor Feedback Error
E10
Charger shows E10 and does not respond to plug-in; LEDs may be frozen in one state.
Internal Control Board Communication Error
E11
Display shows E11; charger may show incorrect current limit or refuse to start charging.
Pilot Duty Cycle / Current Limit Encoding Error
E12
Charger shows E12; unit may charge at reduced current or not at all.
Input Phase / Line Configuration Error
E13
Display shows E13; charger may stop mid-session and not resume.
Internal Power Supply Fault
E14
Charger shows E14; unit may not recognize when a vehicle is connected.
Vehicle Detection / State Machine Error
E15
Display shows E15; charger may indicate a ground fault even when none is apparent.
CCID Self-Test Failure
E16
Charger shows E16; unit may not respond to button presses or RFID (if equipped).
User Interface / Keypad Fault
E17
Display shows E17; charger may not start or may stop unexpectedly when using load management or network features.
External Control / Demand Response Input Fault
E18
Charger shows E18; unit may not connect to network or may refuse to start when network is required.
Network Module Communication Error
E19
Display shows E19; charger may indicate that maximum current cannot be set or may default to a low current.
Current Setting / Configuration Error
E20
Charger shows E20; unit may not energize even though all wiring appears correct.
Internal Safety Interlock Fault
Symptom
Breaker trips immediately or shortly after starting a charge session.
Short Circuit or Overcurrent on Output
Symptom
Charger cable or handle feels unusually warm or hot during charging.
High Resistance Connection in J1772 Handle or Cable
Symptom
Charger completely dead – no LEDs, no display, no relay click when vehicle is plugged in.
No Power / Input Supply Failure
Symptom
Charger display is on but backlight is dim or unreadable; unit still charges.
Display Backlight Degradation
Symptom
Charger emits a burning smell or visible smoke during operation.
Severe Overheating / Component Failure
Symptom
Charger enclosure becomes very hot to the touch during normal charging, even in mild ambient temperatures.
Excessive Internal Heating / Poor Thermal Contact
Symptom
Charger hums loudly or makes buzzing noises during charging.
Mechanical Vibration of Contactor or Transformer
Symptom
Charger intermittently resets or display flickers during charging.
Unstable Low-Voltage Power Supply
Symptom
Charger LED indicates ready, but when plugged in, no relay click is heard and vehicle does not charge.
Contactor Coil Not Energizing
Symptom
Charger randomly stops charging when other large loads in the home turn on (e.g., AC, oven).
Supply Voltage Sag / Brownout Sensitivity
Symptom
Charger starts charging but stops after a few minutes; LEDs may show ready again without an error code.
Thermal Derating or Overheat Shutdown Without Display Code
Symptom
Charger will not start charging unless the J1772 handle is held firmly in place; slight movement stops charging.
Poor Mechanical Fit / Worn J1772 Handle or Vehicle Inlet
Symptom
Charger’s front LEDs do not light, but the unit still charges the vehicle normally.
LED Indicator Failure
Symptom
Charger’s networked features (app, monitoring) do not work, but local charging is fine.
Network Connectivity Issue
Symptom
Charger’s RFID reader (if equipped) does not recognize cards or fobs.
RFID Reader Malfunction
Symptom
Vehicle shows ‘Charging Paused’ or ‘Unable to Charge’ but charger LEDs indicate ready; no error code displayed.
Intermittent Pilot Signal / Communication Issue
Symptom
Water or condensation visible inside the charger enclosure or behind the display window.
Water Ingress / Seal Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Charger will not start charging; vehicle shows ‘Charging Station Error’ and Sun Country Highway unit displays E01 shortly after plugging in.
|
Pilot Signal Communication Fault | View Details |
| E02 |
Charger powers up but immediately shows E02 and refuses to energize the vehicle; some units may show a red LED and E02 on the LCD.
|
Ground Fault / Leakage Current Detected | View Details |
| E03 |
Display shows E03 and charging does not start; unit may click once and then drop out.
|
Contactor / Relay Welded or Stuck | View Details |
| E04 |
Charger shows E04 and will not charge; often occurs after a wiring change or new installation.
|
Line Voltage Out of Range | View Details |
| E05 |
Display shows E05; unit powers up but will not close the contactor to start charging.
|
Ground Continuity / Protective Earth Fault | View Details |
| E06 |
Charger shows E06 and stops charging or refuses to start; may occur intermittently during hot weather.
|
Overtemperature Protection Trip | View Details |
| E07 |
Display shows E07; charger will not initiate charging when plugged into any vehicle.
|
Proximity / Latch Switch Fault in J1772 Handle | View Details |
| E08 |
Charger shows E08 and stops charging shortly after start; may be accompanied by a clicking contactor.
|
Current Sensor / CT Fault | View Details |
| E09 |
Display shows E09; charger may start then immediately stop, or refuse to start at all.
|
Stuck Relay / Contactor Feedback Error | View Details |
| E10 |
Charger shows E10 and does not respond to plug-in; LEDs may be frozen in one state.
|
Internal Control Board Communication Error | View Details |
| E11 |
Display shows E11; charger may show incorrect current limit or refuse to start charging.
|
Pilot Duty Cycle / Current Limit Encoding Error | View Details |
| E12 |
Charger shows E12; unit may charge at reduced current or not at all.
|
Input Phase / Line Configuration Error | View Details |
| E13 |
Display shows E13; charger may stop mid-session and not resume.
|
Internal Power Supply Fault | View Details |
| E14 |
Charger shows E14; unit may not recognize when a vehicle is connected.
|
Vehicle Detection / State Machine Error | View Details |
| E15 |
Display shows E15; charger may indicate a ground fault even when none is apparent.
|
CCID Self-Test Failure | View Details |
| E16 |
Charger shows E16; unit may not respond to button presses or RFID (if equipped).
|
User Interface / Keypad Fault | View Details |
| E17 |
Display shows E17; charger may not start or may stop unexpectedly when using load management or network features.
|
External Control / Demand Response Input Fault | View Details |
| E18 |
Charger shows E18; unit may not connect to network or may refuse to start when network is required.
|
Network Module Communication Error | View Details |
| E19 |
Display shows E19; charger may indicate that maximum current cannot be set or may default to a low current.
|
Current Setting / Configuration Error | View Details |
| E20 |
Charger shows E20; unit may not energize even though all wiring appears correct.
|
Internal Safety Interlock Fault | View Details |
| – |
Breaker trips immediately or shortly after starting a charge session.
|
Short Circuit or Overcurrent on Output | View Details |
| – |
Charger cable or handle feels unusually warm or hot during charging.
|
High Resistance Connection in J1772 Handle or Cable | View Details |
| – |
Charger completely dead – no LEDs, no display, no relay click when vehicle is plugged in.
|
No Power / Input Supply Failure | View Details |
| – |
Charger display is on but backlight is dim or unreadable; unit still charges.
|
Display Backlight Degradation | View Details |
| – |
Charger emits a burning smell or visible smoke during operation.
|
Severe Overheating / Component Failure | View Details |
| – |
Charger enclosure becomes very hot to the touch during normal charging, even in mild ambient temperatures.
|
Excessive Internal Heating / Poor Thermal Contact | View Details |
| – |
Charger hums loudly or makes buzzing noises during charging.
|
Mechanical Vibration of Contactor or Transformer | View Details |
| – |
Charger intermittently resets or display flickers during charging.
|
Unstable Low-Voltage Power Supply | View Details |
| – |
Charger LED indicates ready, but when plugged in, no relay click is heard and vehicle does not charge.
|
Contactor Coil Not Energizing | View Details |
| – |
Charger randomly stops charging when other large loads in the home turn on (e.g., AC, oven).
|
Supply Voltage Sag / Brownout Sensitivity | View Details |
| – |
Charger starts charging but stops after a few minutes; LEDs may show ready again without an error code.
|
Thermal Derating or Overheat Shutdown Without Display Code | View Details |
| – |
Charger will not start charging unless the J1772 handle is held firmly in place; slight movement stops charging.
|
Poor Mechanical Fit / Worn J1772 Handle or Vehicle Inlet | View Details |
| – |
Charger’s front LEDs do not light, but the unit still charges the vehicle normally.
|
LED Indicator Failure | View Details |
| – |
Charger’s networked features (app, monitoring) do not work, but local charging is fine.
|
Network Connectivity Issue | View Details |
| – |
Charger’s RFID reader (if equipped) does not recognize cards or fobs.
|
RFID Reader Malfunction | View Details |
| – |
Vehicle shows ‘Charging Paused’ or ‘Unable to Charge’ but charger LEDs indicate ready; no error code displayed.
|
Intermittent Pilot Signal / Communication Issue | View Details |
| – |
Water or condensation visible inside the charger enclosure or behind the display window.
|
Water Ingress / Seal Failure | View Details |
No matching codes found
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