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Startseite / Technische Konfiguration / Charging Station Diagnostics & Maintenance / Manufacturer error codes / Autel error codes

Autel error codes

Aktualisiert am 28. Oktober 2026
Dieser Artikel ist noch nicht auf Deutsch verfügbar. Es wird die English-Version angezeigt.
ocppdiagnosticsautelerror codes

This page covers the Autel MaxiCharger AC (Compact, Ultra, Wallbox, Elite) and MaxiCharger DC charging stations. It explains how to read the vendor code sent by the MaxiCharger AC, lists Autel's faults and explains the LEDs.

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

How Autel reports errors

Autel documents its faults as a fault word: each fault is one bit, and the manuals give the value of each bit in hexadecimal (01, 02, 04… 40000000), as shown in Autel Charge Cloud. The fault description is shown in the Autel Charge app and on the charger display.

In the vendor code (vendorErrorCode), the charger does not send the hexadecimal value but the bit position of each active fault, followed by a comma (to be confirmed):

  • 6, = bit 6 = 40 = ground fault;
  • 17, = bit 17 = 20000 = socket electronic lock fault;
  • 5,6, = two faults at once (bit 5, line/neutral reversed, and bit 6, ground fault).

For a combined code, look up each number separately in the table below.

This decoding is not written in Autel's documentation. It is inferred from the match between the vendor code and the OCPP code received from stations supervised by Chargekeeper (6, comes with GroundFailure, 17, with ConnectorLockFailure, 1, with UnderVoltage), and from a user report in which the Autel app shows fault #10 for a control pilot anomaly, i.e. bit 10 (unofficial source).

The information field often contains eCp_12V, eCp_9V or eCp_6V. This is not a fault: it is the control pilot state at the time of the message (12 V: no vehicle; 9 V: vehicle plugged in; 6 V: charging). This reading comes from the IEC 61851 control pilot states; the eCp_ notation is not documented by Autel, nor is the value eCp_unkown. An OtherError message with an empty vendor code and only an eCp_… state has no documented meaning.

Autel gives no mapping to OCPP error codes. The "OCPP code" column gives the ones received from stations supervised by Chargekeeper, when they have been recorded. The combined code 9,23, (two leakage current faults) comes with HighTemperature, whereas over-temperature is bit 8: this inconsistency is unexplained.

No code list was found for the MaxiCharger DC, which only shows messages on its display.

MaxiCharger AC — codes sent to the supervision

Code received (to be confirmed) Autel code (hexadecimal) Meaning What to do OCPP code
0, 01 Supply (mains) voltage above the allowed range Have the supply voltage measured by a qualified electrician; the AC Compact manual sets the threshold at 115 % of the rated voltage and says to contact the grid operator —
1, 02 Supply (mains) voltage below the allowed range Have the supply voltage measured by a qualified electrician; the manuals set the threshold at 70 % of the rated voltage and say to contact the grid operator UnderVoltage
2, 04 Grid frequency above the allowed range — —
3, 08 Grid frequency below the allowed range — —
4, 10 A supply phase is missing Have the phase wiring in the distribution board checked by a qualified electrician OtherError
5, 20 Line and neutral reversed at the charger input Have the supply wiring corrected by a qualified electrician OtherError
6, 40 Ground fault detected on the installation Have the charger's earth connection checked by a qualified electrician GroundFailure, OtherError
7, 80 Charging stopped abnormally — OtherError, GroundFailure
8, 100 Temperature too high inside the charger Check that the cable is fully inserted; check that the ambient temperature is within the range on the label, stop and try again later —
9, 200 Leakage (residual) current detected Unplug the vehicle and plug it in again; contact support if the fault persists HighTemperature (combined 9,23,)
10, 400 Control pilot (CP) voltage out of range or shorted to earth Unplug the vehicle and plug it in again OtherError
11, 800 Contactor (power relay) behaving abnormally Contact the manufacturer's support or a qualified electrician —
12, 1000 Output current higher than allowed Unplug the vehicle and plug it in again —
13, 2000 Vehicle-side S2 switch fault (control pilot circuit) — —
14, 4000 Fault on the negative half of the vehicle's control pilot signal — —
15, 8000 Proximity pilot (PP) signal lost Check the cable connection and condition; contact support if the fault persists OtherError
16, 10000 Proximity pilot (PP) signal out of range Check the cable connection and condition; contact support if the fault persists —
17, 20000 Fault of the socket's electronic lock actuator Check the charging cable connection; contact support if the fault persists ConnectorLockFailure, OtherError
18, 40000 PME protection fault (protection against a broken PEN neutral) — —
19, 80000 The PME protection could not open the relay — —
20, 100000 Internal communication error with the control board — —
21, 200000 Built-in energy meter abnormal — —
22, 400000 Internal data error — —
23, 800000 AC leakage (residual) current detected Unplug the vehicle and plug it in again; contact support if the fault persists HighTemperature (combined 9,23,)
24, 1000000 Protective trip — —
25, 2000000 A sensor failed its self-test — —
26, 4000000 Ground fault detected on the output side — —
27, 8000000 Earth monitoring self-test failed — —
28, 10000000 Internal electronics fault — —
29, 20000000 Temperature sensor abnormal — —
30, 40000000 Power system abnormal — —

Codes seen on our stations, not documented by Autel

These codes were received from stations supervised by Chargekeeper but do not appear in the
manufacturer's public documentation. The label is the one sent by the station itself.

This text code follows a different format from the bit positions above; it may come from another model or another firmware.

Code Label sent by the station OCPP code
ChgLockErr "Charging port electronic lock fault" ConnectorLockFailure

LEDs and display

On the MaxiCharger AC Compact and AC Elite, the LED colour shows the type of error. The MaxiCharger DC shows its problems as text on the touchscreen (emergency stop pressed, connector cannot be locked, insulation fault, QR code, RFID badge or network failure), without a code.

Signal Meaning What to do
Steady yellow or orange Recoverable error —
Steady red Unrecoverable error Contact support

Sources

Chargekeeper

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