Error Code	Symptom	Fault Type	Guide
E01	BMW Wallbox will not start charging; vehicle connected, LED ring solid red, app shows E01	Proximity / Pilot Signal Interruption	View Details
E02	BMW Wallbox refuses to charge; LED ring red, app or display shows E02 overcurrent / overload fault	Output Overcurrent Protection Trip	View Details
E03	BMW EV charger shows E03 and will not energize; LED ring red or flashing red/white	Ground Fault / Residual Current Detection Trip	View Details
E04	BMW Wallbox displays E04; charging stops shortly after plug-in, LED ring red	Overvoltage on Supply Line	View Details
E05	BMW EV charger shows E05; unit powers up but refuses to charge any vehicle	Undervoltage / Brownout Protection	View Details
E06	BMW Wallbox shows E06; charging session aborts immediately after handshake	Contactor Feedback / Welded Contactor Fault	View Details
E07	BMW EV charger displays E07; unit online but cannot communicate with vehicle, no charging current	Control Pilot Communication Failure	View Details
E08	BMW Wallbox shows E08; charging stops with error after a few minutes of operation	Overtemperature Protection – Internal Electronics	View Details
E09	BMW EV charger indicates E09; unit will not start, LED ring red, often after a power outage	Self-Test Failure / Internal Diagnostic Error	View Details
E10	BMW Wallbox shows E10; charging disabled, often accompanied by network or RFID issues	Authorization / Access Control Fault	View Details
E11	BMW EV charger displays E11; unit online but cannot connect to BMW backend or home network	Network Communication Error	View Details
E12	BMW Wallbox shows E12; load management or energy meter communication error, charging limited or disabled	External Energy Meter / Load Management Bus Failure	View Details
E13	BMW EV charger indicates E13; phase imbalance or missing phase detected, charging reduced or blocked	Phase Loss / Phase Imbalance Detection	View Details
E14	BMW Wallbox shows E14; internal memory or configuration error, unit may revert to default settings	Non-Volatile Memory / Configuration Corruption	View Details
E15	BMW EV charger displays E15; internal clock or scheduling functions not working, timed charging fails	Real-Time Clock / Time Synchronization Error	View Details
E16	BMW Wallbox shows E16; internal DC fault or insulation monitoring error, charging disabled	DC Fault Current / Insulation Monitoring Trip	View Details
E17	BMW EV charger indicates E17; internal fan or cooling system error, charging may be derated	Cooling System Failure	View Details
E18	BMW Wallbox shows E18; internal relay test failure, pre-charge or safety relay not operating correctly	Pre-Charge / Safety Relay Fault	View Details
E19	BMW EV charger displays E19; internal sensor mismatch or calibration error, charging disabled	Current / Voltage Sensor Calibration Fault	View Details
E20	BMW Wallbox shows E20; internal isolation fault between control and power circuits	Galvanic Isolation Fault	View Details
–	BMW EV charger cable insulation is cracked, cut, or heavily abraded	Mechanical Cable Damage	View Details
–	BMW EV charger cable or plug becomes very hot during charging, sometimes with a plastic smell	Overheating Plug / High Contact Resistance	View Details
–	BMW EV charger does not recognize that the vehicle has been unplugged; session appears active in app	Stuck Proximity Detection / Latch Switch Fault	View Details
–	BMW EV charger emits a persistent burnt or electrical smell even when not charging	Internal Component Overheating / Insulation Breakdown	View Details
–	BMW EV charger makes loud buzzing or clicking noises during operation	Noisy Contactor / Coil Hum	View Details
–	BMW EV charger powers on but vehicle will not start charging; LED ring stays blue or white, no error code shown	Charge Session Not Initiating	View Details
–	BMW EV charger RFID reader does not respond; no beep or LED when card is presented, access control fails	RFID Reader Hardware Failure	View Details
–	BMW EV charger trips the household RCD or main breaker whenever a charging session starts	Nuisance Tripping / Earth Leakage	View Details
–	BMW Wallbox cannot connect to BMW backend or app; remote control and logging not available, but charging works	Backend Connectivity / Telematics Failure	View Details
–	BMW Wallbox display (if equipped) is blank or unreadable, but charging still works	Display / HMI Failure	View Details
–	BMW Wallbox frequently reduces charging current automatically, even though settings allow higher current	Thermal Derating / Load Management Intervention	View Details
–	BMW Wallbox has no power at all; no LEDs, no response, vehicle does not detect connection	No Mains Supply / Internal Power Failure	View Details
–	BMW Wallbox housing is cracked or loose on the wall, but charger still operates	Mechanical Mounting / Enclosure Damage	View Details
–	BMW Wallbox intermittently stops charging mid-session without clear error; charging resumes after reconnection	Intermittent Connection / Thermal Cutback	View Details
–	BMW Wallbox is leaking water from the bottom or shows condensation inside the transparent areas	Moisture Ingress / Compromised Enclosure Seal	View Details
–	BMW Wallbox LED ring or status lights are flashing in an unusual pattern with no documented error code	Undocumented Firmware / UI Anomaly	View Details
–	BMW Wallbox scheduled charging does not start at the programmed time	Scheduling / Timer Misconfiguration	View Details

BMW EV Home Chargers Error Codes

No matching codes found