Help center
EN
FrançaisEnglishDeutschItalianoEspañolNederlands
Chargekeeper ↗
Home / Technical configuration / Charging Station Diagnostics & Maintenance / Manufacturer error codes / Alfen error codes

Alfen error codes

Updated on 28 October 2026
ocppdiagnosticsalfenerror codes

This page covers Alfen charging stations of the NG platform (NG9xx controller): Eve Single Pro-line, Eve Double Pro-line, Eve Single S-line, Eve Double PG-line and Twin4XL, then the codes specific to the AHP platform (Eve Single Plus, Eve Double Plus, Twin5). It details the three-digit codes sent to the supervision, then the lights.

Where to read the code: in Chargekeeper, charging station list, connector details, column
Information (or the in-progress sessions list, column Information). It shows
"OCPP code - vendor code - information". See Manufacturer error codes.

How Alfen reports its errors

Each Alfen error has a three-digit code, shown on the station display (when it has one and the code is not marked "not displayed") On charging stations supervised by Chargekeeper, this code arrives in the vendor code and the information field carries a readable text. Example: ConnectorLockFailure - 404 - Unable to lock charging cable, try again. When the error clears, the station sends the same code again with NoError and the text "Error 404 resolved": this message reports the end of the fault, not a new fault.

The first digit gives the likely origin:

  • 0xx: generic error;
  • 1xx: inside the station;
  • 2xx: installation;
  • 3xx: vehicle;
  • 4xx: external cause (user, cable, plug, weather).

The information field often completes the code (for example the measured voltage for 202). Code 304 (cable plugged in without a session started) is sent with NoError: it is not a fault. For 405 and 406, Alfen gives "Communication Error", which is not a standard OCPP 1.6 code: the column is left empty.

NG platform (Eve Pro-line, S-line, PG-line, Twin4XL) — codes sent to the supervision

Codes from the Alfen service sheet and Alfen support articles. Except 001, 107, 206, 301 and 407 (NG platform only), they also apply to the AHP platform.

Code Meaning What to do OCPP code
001 Unspecified generic error; the station cannot charge Contact the charge point supplier's service department (Alfen partner) if the problem persists OtherError
101 DC residual (leakage) current above 6 mA detected; charging paused and retried If only one vehicle is affected, refer the driver to the vehicle dealer; if all vehicles are affected, contact the charge point supplier's service department GroundFailure
102 Internal fault: voltage on the power-switching output is missing or unexpected (power board on NG, socket board on AHP) Contact the charge point supplier's service department (Alfen partner) if the problem persists; service: check the power board / socket board; on Eve Double Pro-line, update to NG firmware 7.2 or later if the RCD tripped PowerSwitchFailure
104 Internal 12 V supply voltage too low (power board) Contact the charge point supplier's service department (Alfen partner) if the problem persists; service: check the power board InternalError
105 The controller cannot communicate with the internal energy meter Contact the charge point supplier's service department (Alfen partner) if the problem persists; service: check meter wiring, meter address and configuration; power-cycle; replace the meter if still failing (Alfen troubleshooting article KA-01400) PowerMeterFailure
106 Power cut by the internal type A (30 mA AC) RCD; a local reset is required Have a qualified installer inspect and reset the RCD on site; contact the charge point supplier's service department (Alfen partner) if the problem persists GroundFailure
107 Cable lock motor could not move during the self-test (legacy code, replaced by 211) Have a qualified installer check the installation: lock motor wiring and free movement ConnectorLockFailure
108 Station set to Plug & Charge authorization but no Plug & Charge identifier is configured; not shown on the display Configure the Plug & Charge ID (or change the authorization mode) in the station configuration OtherError
109 Connection to the RFID reader lost; not shown on the display Contact the charge point supplier's service department (Alfen partner) if the problem persists; service: check the RFID reader connection ReaderFailure
201 Protective earth missing or unstable Have a qualified installer check the installation: earthing (Alfen recommends earth resistance below 100 ohm) OtherError
202 Supply voltage too low (below 210 V AC); the station cannot charge Have a qualified installer check the installation: supply voltage levels UnderVoltage
206 Station temporarily unavailable Check availability set from the CSMS; let a pending firmware update finish (stop sessions, unplug cables); restore backoffice connectivity or review the offline authorization setting —
208 Supply voltage too high (above 275 V AC); not shown on the display Have a qualified installer check the installation: supply voltage levels OtherError (seen on charging stations supervised by Chargekeeper: OverVoltage)
209 Connection lost with the P1 smart meter (DSMR 4.x / SMR 5.0); station falls back to a 6 A safe mode Check the P1 smart meter connection (Alfen checklist KA-01165); charging continues limited to 6 A until the link is restored OtherError
210 Connection lost with the Modbus TCP/IP energy meter or energy management system; station falls back to a 6 A safe mode Check the Modbus TCP/IP meter or EMS and its network link; charging continues limited to 6 A until the link is restored OtherError
211 Cable lock motor could not move during the self-test Have a qualified installer check the installation: lock motor wiring and free movement ConnectorLockFailure
212 A supply phase is missing Have a qualified installer check the installation: incoming voltage on each phase UnderVoltage
213 Connection lost with the TIC smart meter (French Linky interface); station falls back to a 6 A safe mode Check the TIC smart meter connection; charging continues limited to 6 A until the link is restored OtherError
214 Tariffs (start price and energy price) not configured although required for ad-hoc payment in Eichrecht mode (NG firmware 7.0.0 and later) Contact the charge point operator to configure the tariffs OtherError
215 Connection lost with the Modbus RTU energy meter; station falls back to a safe mode (6 A by default) (AHP 2.5.0+, NG 7.4.0+) Contact the charge point operator / installer to check the RTU meter link OtherError
301 Unidentified error in the communication with the vehicle; session should resume Check the vehicle and the charging cable; contact the charge point supplier's service department (Alfen partner) if the problem persists —
302 Vehicle draws more current than allowed or did not reduce it in time (IEC 61851 safety measure); session should resume If only one vehicle is affected, refer the driver to the vehicle dealer; if all vehicles are affected, contact the charge point supplier's service department (Alfen partner) OverCurrentFailure
303 Vehicle started and stopped charging too many times within one minute (safety measure); session should resume Check the vehicle and the charging cable; contact the charge point supplier's service department (Alfen partner) if the problem persists EVCommunicationError
304 Cable plugged in for more than 2 minutes without a session being started Unplug and plug again, then start the session within 2 minutes; contact the charge point supplier's service department (Alfen partner) if the problem persists NoError
401 Internal temperature above 70 °C; charging resumes once it cools down If expected (sun, heat, charging): have the installer review the location / shading; if unexpected: contact the charge point supplier's service department (Alfen partner) if the problem persists HighTemperature
402 Internal temperature too low; charging resumes once it warms up If the ambient temperature does not explain it, contact the charge point supplier's service department (Alfen partner) OtherError
404 The charging cable could not be locked in the socket Ask the driver to reconnect the cable; check the socket and the cable plug; contact the charge point supplier's service department (Alfen partner) if the problem persists ConnectorLockFailure
405 Cable not supported: proximity pilot (PP) resistance out of the IEC 61851 range Try another cable; if the cable also fails elsewhere it is broken; if all cables fail, contact the charge point supplier's service department (Alfen partner) —
406 No communication with the vehicle: control pilot (CP) voltage out of the IEC 61851 range Try another cable; if the cable also fails elsewhere it is broken; if all cables fail, contact the charge point supplier's service department (Alfen partner) —
407 Tilt detected: the station is no longer upright (e.g. hit by a vehicle); not shown on the display Inspect the station on site and contact the charge point supplier OtherError

Other models: AHP platform (Eve Single Plus, Eve Double Plus, Twin5) — specific codes

Codes documented only for the AHP platform, in addition to the common codes of the previous table.

Code Meaning What to do OCPP code
103 Internal fault: voltage on the socket board output is missing or unexpected Contact the charge point supplier's service department (Alfen partner) if the problem persists; service: check the socket board PowerSwitchFailure
110 Connection lost with one or more internal devices; not shown on the display Wait a few minutes: it usually clears by itself; if it persists, contact the charge point supplier's service department (Alfen partner) (check internal device cabling) OtherError
111 Station configured for Eichrecht compliance but no energy meter with signed meter values is present (AHP firmware 2.3.0 and later) Have a qualified installer check the installation: the energy meter must support signed meter values OtherError
112 In Eichrecht mode: power output missing/unexpected or internal RCD tripped; a local reset is required (AHP firmware 2.3.0 and later) Have a qualified installer check the installation: RCD reset and socket board check PowerSwitchFailure
113 Internal RCD is defective and cannot protect properly (AHP firmware 2.3.0 and later) Contact the charge point supplier's service department (Alfen partner) if the problem persists GroundFailure
114 No Alfbus communication between the smart control board and the auxiliary board (AHP firmware 2.5.0 and later) Contact the charge point operator / service; service: check the Alfbus cable, check the auxiliary board LED (1 s blink = normal), reflash or perform a complete firmware update OtherError
115 No Alfbus communication between the smart control board and the socket board (AHP firmware 2.5.0 and later) Contact the charge point operator / service; service: check the Alfbus cable, check the socket board LED (1 s blink = normal), reflash or perform a complete firmware update OtherError
409 Enclosure opened while in operation (possible tampering); message stays until someone logs in to the device Contact the charge point supplier's service department (Alfen partner) if the problem persists; check whether the enclosure was opened OtherError
411 One or more internal components connected to the control board are reported broken Contact the charge point supplier's service department (Alfen partner) if the problem persists; parts replacement is required OtherError
418 Generic internal error covering a triggered safety measure, lost vehicle communication or internal communication failure; the info field carries an internal sub-code (e.g. ERR6) Communication-related cases usually clear by themselves; if it is a safety measure or it persists, contact the charge point supplier's service department (Alfen partner) OtherError

Lights and display

Alfen does not state which models each indication applies to. Stations with a display show the error code on it.

Signal Meaning What to do
Red blinking Station inoperative, badge blocked, or a hard error requiring intervention For red indications, read the error code on the display or in the supervision (Information column)
Red/blue alternating Soft error that the user can resolve For red indications, read the error code on the display or in the supervision (Information column)
Dark blue Vehicle is charging —
Cyan Waiting for communication with the vehicle —
Yellow Solar charging —
Yellow/blue alternating Partial solar charging —
Green blinking with beep Charging badge read —
Green Cable detected or badge accepted —
Blue blinking Load balancing active, charging current limited —
White blinking Heartbeat indication (configurable in ACE Service Installer) —

Sources

Chargekeeper

Master energy. Simplify charging.

© 2026 Chargekeeper — Help center