Mini EV Home Chargers Error Codes

CP001

Charger will not start charging; vehicle shows ‘Charging Not Possible’ and Mini wallbox/app shows CP001

EVSE–EV Communication Failure (Control Pilot Line Fault)

CP002

Charging session stops shortly after start; Mini charger or app displays CP002

Proximity Pilot / Plug Detection Fault

CP003

Vehicle does not lock into charge mode; Mini charger shows CP003 and charging does not start

Vehicle Lock / Interlock Signal Fault

E01

No output to vehicle; Mini EV Home Charger display or app shows E01 immediately after plug-in

Input Supply Undervoltage

E02

Charger refuses to start; E02 displayed; sometimes occurs during grid fluctuations or storms

Input Supply Overvoltage

E03

Charging stops and E03 is shown; breaker has not tripped; charger feels warm

Internal Overtemperature Protection Trip

E04

Charger will not start; E04 displayed; sometimes accompanied by a ground fault indicator

Ground Fault / Residual Current Detection (RCD) Trip

E05

Charging stops intermittently; E05 displayed; breaker remains on

Output Overcurrent / Relay Protection Trip

E06

Charger display shows E06 and refuses to start; often after installation or rewiring

Phase Loss / Phase Sequence Error (Three-Phase Models)

E07

Charger shows E07; no charging; often after a lightning storm or surge event

Surge Protection Device (SPD) Failure

E08

Charger display shows E08; charging does not start; sometimes after internal wiring work

Protective Earth (PE) Fault / Missing Earth

E09

Charger shows E09; no charging; occurs immediately when plugging into vehicle

Output Relay / Contactor Stuck or Feedback Error

E10

Charger shows E10; charging stops; may coincide with high load in the house

Dynamic Load Management / Current Limiting Fault

E11

Charger display shows E11; Wi‑Fi or Ethernet LED may be off; remote control via app fails

Communication Module Failure (Wi‑Fi/Ethernet)

E12

Charger shows E12; RFID cards or app authorization do not work; unit remains locked

Authorization / RFID Reader Fault

E13

Charger shows E13; scheduled charging and smart features fail; local manual start may still work

Internal Real-Time Clock (RTC) / Time Sync Error

E14

Charger shows E14; no charging; often after a failed firmware update or power loss during update

Firmware Corruption / Bootloader Error

E15

Charger shows E15; internal self-test fails at startup; no charging allowed

Isolation Monitoring Device (IMD) Fault

E16

Charger shows E16; fan may run at high speed; no charging

Power Module Overtemperature or Sensor Fault

E17

Charger shows E17; vehicle may show ‘Check Charging Station’; no energy delivered

Control Pilot Duty Cycle / Current Coding Error

E18

Charger shows E18; internal buzzer may sound; no charging

Emergency Stop (E‑Stop) Activated or Faulty

E19

Charger shows E19; app indicates ‘Internal Memory Error’ or similar

Internal Data Storage / EEPROM Fault

E20

Charger shows E20; vehicle does not detect charging station; no relay click

Vehicle Detection / State Machine Error

Symptom

Burning smell or visible discoloration around Mini EV Home Charger or its cable during/after charging

Overheating / Localized Burning of Contacts or Wiring

Symptom

Mini EV Home Charger causes the supply breaker to trip (overcurrent or short-circuit) when starting a charge

Short Circuit or Inrush Overcurrent

Symptom

Mini EV Home Charger completely dead; no LEDs, no display, no relay click

No Power / Dead Unit

Symptom

Mini EV Home Charger enclosure becomes very hot to the touch during normal charging

Overheating / Poor Thermal Dissipation

Symptom

Mini EV Home Charger energy readings (kWh) seem inaccurate or inconsistent with utility meter

Metering / Current Measurement Error

Symptom

Mini EV Home Charger Ethernet connection not detected by router/switch

Wired Network Port Fault

Symptom

Mini EV Home Charger front LEDs or display are dim, flickering, or partially not working

User Interface / LED Board Fault

Symptom

Mini EV Home Charger makes loud buzzing or humming noises during charging

Excessive Electrical or Mechanical Noise from Contactor or Power Module

Symptom

Mini EV Home Charger powers on but will not start charging; no error code shown; vehicle reports ‘Charging Station Not Ready’

Standby Only / Output Disabled

Symptom

Mini EV Home Charger randomly restarts or reboots during charging or while idle

Intermittent Power or Control Reset

Symptom

Mini EV Home Charger scheduled charging does not start at the programmed time

Scheduling / Timer Malfunction

Symptom

Mini EV Home Charger starts charging then stops after a few minutes with no error code; vehicle shows ‘Charging Interrupted’

Intermittent Output Drop / Thermal or Load Management Limiting

Symptom

Mini EV Home Charger tethered cable insulation is cracked, cut, or feels sticky

Degraded or Damaged Output Cable

Symptom

Mini EV Home Charger trips the house RCD/RCBO as soon as charging starts; no specific charger error code

External Residual Current Device Nuisance Trip or Real Earth Leakage

Symptom

Mini EV Home Charger Type 2 connector does not latch securely into vehicle or is difficult to insert/remove

Mechanical Wear or Damage of Type 2 Plug

Symptom

Mini EV Home Charger Wi‑Fi connection is unstable or cannot connect to home network

Wireless Connectivity / Signal Issue

Symptom

Water or condensation visible inside Mini EV Home Charger enclosure or behind front cover

Moisture Ingress / Compromised Sealing