myenergi
myenergi 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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E001
Zappi EV charger will not start charging, red fault LED lit, E001 shown on display
Overcurrent / Output Overload Protection Trip
E002
Zappi shows E002 and refuses to charge, red LED, sometimes after plugging in the car
Ground Fault / Residual Current Device (RCD) Trip
E003
Zappi displays E003, charging stops or will not start, often accompanied by earth/ground warning icon
Earth Fault / Missing Earth Detection
E004
Zappi shows E004 and will not charge, often after a power cut or grid disturbance
Supply Voltage Out of Range (Overvoltage / Undervoltage)
E005
Zappi displays E005, charging session aborts shortly after starting
Pilot Signal / Control Pilot (CP) Communication Fault
E006
Zappi shows E006, no charging, often after lightning or surge event
Internal Hardware Fault / Self-Test Failure
E007
Zappi shows E007, charging disabled, may occur intermittently
Temperature Sensor Fault / Overtemperature Protection
E008
Zappi displays E008, will not charge, often after wiring changes or new installation
Phase Configuration / Phase Loss Error
E009
Zappi shows E009, charging stops, often when using ECO or ECO+ modes with CT clamps
CT Clamp / Current Sensor Fault
E010
Zappi shows E010, no charging, often after firmware update or configuration change
Configuration / Parameter Corruption
E011
Zappi displays E011, charging disabled, often associated with PEN/earth monitoring on TN-C-S supplies
PEN Conductor Fault Detected
E012
Zappi shows E012, charging stops, often when switching between ECO and FAST modes
Relay / Contactor Feedback Fault
E013
Zappi displays E013, no charging, often after long idle periods
Insulation Resistance Test Failure
E014
Zappi shows E014, charging disabled, often after CT or grid configuration changes
Grid Reference / Phase Rotation Error
E015
Zappi displays E015, no charging, often after a brownout or low-voltage event
Internal Low-Voltage Power Supply Fault
E016
Zappi shows E016, charging inhibited, often linked to lockout or security features
User Lockout / Access Control Fault
E017
Zappi displays E017, charging stops shortly after starting, often with certain vehicles only
Vehicle Communication / Proximity Pilot (PP) Fault
E018
Zappi shows E018, no charging, often after internal time or schedule changes
Real-Time Clock / Scheduling Fault
E019
Zappi displays E019, charging disabled, often when linked with myenergi hub or other myenergi devices
Communication Fault with Hub / Linked Devices
E020
Zappi shows E020, charging inhibited, often when solar or battery integration is enabled
Generation / Export Limitation Fault
Symptom
Vehicle will not lock or reports that the charging cable is still connected even after unplugging from Zappi
Mechanical Latch / Proximity Detection Issue
Symptom
Water or condensation visible inside Zappi enclosure or behind display window
Moisture Ingress / IP Seal Failure
Symptom
Zappi causes noticeable flickering of house lights when charging starts or stops
High Inrush / Voltage Dip on Supply
Symptom
Zappi display is blank or unreadable but LEDs are on and charging still works
LCD / Display Module Failure
Symptom
Zappi emits a loud buzzing or humming noise during charging
Mechanical Vibration / Contactor or Coil Noise
Symptom
Zappi EV charger will not power on at all, no display or LEDs
No Mains Supply / Internal Power Failure
Symptom
Zappi fails to connect to myenergi hub or app, but charging works locally
Network / RF Communication Issue
Symptom
Zappi intermittently stops charging mid-session without clear error, then resumes later
Intermittent Supply or Thermal Cutback
Symptom
Zappi LEDs flash but screen shows garbled characters or random symbols
Firmware Corruption / MCU Fault
Symptom
Zappi or its tethered cable becomes unusually hot during charging
Overheating of Cable or Internal Terminals
Symptom
Zappi powers on but will not start charging any vehicle, no specific error code shown
General Charge Inhibit / Mode or Configuration Issue
Symptom
Zappi randomly reboots during charging sessions without tripping breakers
Internal Power Instability / Firmware Crash
Symptom
Zappi RCD test button or built-in self-test fails, but no error code is shown
RCD Self-Test Failure
Symptom
Zappi repeatedly trips the upstream MCB/RCBO as soon as charging starts
Short Circuit or High Inrush on Output
Symptom
Zappi shows very slow charging rate compared to expected power, without any error code
Current Limitation / Derating
Symptom
Zappi’s front buttons are unresponsive or require excessive force
Keypad / Button Failure
Symptom
Zappi’s myenergi app shows incorrect or zero power readings while charging appears normal
Measurement / CT Calibration Issue
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E001 |
Zappi EV charger will not start charging, red fault LED lit, E001 shown on display
|
Overcurrent / Output Overload Protection Trip | View Details |
| E002 |
Zappi shows E002 and refuses to charge, red LED, sometimes after plugging in the car
|
Ground Fault / Residual Current Device (RCD) Trip | View Details |
| E003 |
Zappi displays E003, charging stops or will not start, often accompanied by earth/ground warning icon
|
Earth Fault / Missing Earth Detection | View Details |
| E004 |
Zappi shows E004 and will not charge, often after a power cut or grid disturbance
|
Supply Voltage Out of Range (Overvoltage / Undervoltage) | View Details |
| E005 |
Zappi displays E005, charging session aborts shortly after starting
|
Pilot Signal / Control Pilot (CP) Communication Fault | View Details |
| E006 |
Zappi shows E006, no charging, often after lightning or surge event
|
Internal Hardware Fault / Self-Test Failure | View Details |
| E007 |
Zappi shows E007, charging disabled, may occur intermittently
|
Temperature Sensor Fault / Overtemperature Protection | View Details |
| E008 |
Zappi displays E008, will not charge, often after wiring changes or new installation
|
Phase Configuration / Phase Loss Error | View Details |
| E009 |
Zappi shows E009, charging stops, often when using ECO or ECO+ modes with CT clamps
|
CT Clamp / Current Sensor Fault | View Details |
| E010 |
Zappi shows E010, no charging, often after firmware update or configuration change
|
Configuration / Parameter Corruption | View Details |
| E011 |
Zappi displays E011, charging disabled, often associated with PEN/earth monitoring on TN-C-S supplies
|
PEN Conductor Fault Detected | View Details |
| E012 |
Zappi shows E012, charging stops, often when switching between ECO and FAST modes
|
Relay / Contactor Feedback Fault | View Details |
| E013 |
Zappi displays E013, no charging, often after long idle periods
|
Insulation Resistance Test Failure | View Details |
| E014 |
Zappi shows E014, charging disabled, often after CT or grid configuration changes
|
Grid Reference / Phase Rotation Error | View Details |
| E015 |
Zappi displays E015, no charging, often after a brownout or low-voltage event
|
Internal Low-Voltage Power Supply Fault | View Details |
| E016 |
Zappi shows E016, charging inhibited, often linked to lockout or security features
|
User Lockout / Access Control Fault | View Details |
| E017 |
Zappi displays E017, charging stops shortly after starting, often with certain vehicles only
|
Vehicle Communication / Proximity Pilot (PP) Fault | View Details |
| E018 |
Zappi shows E018, no charging, often after internal time or schedule changes
|
Real-Time Clock / Scheduling Fault | View Details |
| E019 |
Zappi displays E019, charging disabled, often when linked with myenergi hub or other myenergi devices
|
Communication Fault with Hub / Linked Devices | View Details |
| E020 |
Zappi shows E020, charging inhibited, often when solar or battery integration is enabled
|
Generation / Export Limitation Fault | View Details |
| – |
Vehicle will not lock or reports that the charging cable is still connected even after unplugging from Zappi
|
Mechanical Latch / Proximity Detection Issue | View Details |
| – |
Water or condensation visible inside Zappi enclosure or behind display window
|
Moisture Ingress / IP Seal Failure | View Details |
| – |
Zappi causes noticeable flickering of house lights when charging starts or stops
|
High Inrush / Voltage Dip on Supply | View Details |
| – |
Zappi display is blank or unreadable but LEDs are on and charging still works
|
LCD / Display Module Failure | View Details |
| – |
Zappi emits a loud buzzing or humming noise during charging
|
Mechanical Vibration / Contactor or Coil Noise | View Details |
| – |
Zappi EV charger will not power on at all, no display or LEDs
|
No Mains Supply / Internal Power Failure | View Details |
| – |
Zappi fails to connect to myenergi hub or app, but charging works locally
|
Network / RF Communication Issue | View Details |
| – |
Zappi intermittently stops charging mid-session without clear error, then resumes later
|
Intermittent Supply or Thermal Cutback | View Details |
| – |
Zappi LEDs flash but screen shows garbled characters or random symbols
|
Firmware Corruption / MCU Fault | View Details |
| – |
Zappi or its tethered cable becomes unusually hot during charging
|
Overheating of Cable or Internal Terminals | View Details |
| – |
Zappi powers on but will not start charging any vehicle, no specific error code shown
|
General Charge Inhibit / Mode or Configuration Issue | View Details |
| – |
Zappi randomly reboots during charging sessions without tripping breakers
|
Internal Power Instability / Firmware Crash | View Details |
| – |
Zappi RCD test button or built-in self-test fails, but no error code is shown
|
RCD Self-Test Failure | View Details |
| – |
Zappi repeatedly trips the upstream MCB/RCBO as soon as charging starts
|
Short Circuit or High Inrush on Output | View Details |
| – |
Zappi shows very slow charging rate compared to expected power, without any error code
|
Current Limitation / Derating | View Details |
| – |
Zappi’s front buttons are unresponsive or require excessive force
|
Keypad / Button Failure | View Details |
| – |
Zappi’s myenergi app shows incorrect or zero power readings while charging appears normal
|
Measurement / CT Calibration Issue | View Details |
No matching codes found
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