44
Loss of protective
earth
Earth leakage
Charging not possible
Note: The Audi Wallbox detects if it is
correctly connected to ground by mea-
suring the L1 to PE (Protective Earth)
voltage.
› Have voltage between L1 and PE mea-
sured multiple times:
A. If voltage is close to 0 V, then L1 and
N might be swapped.
B. If the voltages are different for each
measurement, the ground connec-
tion is possibly floating.
Possible solutions:
› For TN and TT grounding schemes
(not applicable to 1-phase without
neutral): Have the wallbox checked
for a proper ground connection.
› In case of IT grid or 1-phase without
neutral, have the ground monitor
functionality disabled via DIP-switch 5
of Group A.
› If the error still occurs, and a safe
operation of the wallbox and its
upstream installation is ensured, have
the ground monitor functionality
disabled via DIP-switch 5 of Group A.
Charging not possible
The wallbox has detected a current
leakage to ground (earth) caused by the
vehicle.
› If the vehicle is connected to the
wallbox, disconnect it. Wait until the
wallbox is idle before reconnecting
your vehicle.
› If the vehicle is not connected to the
wallbox, have the wallbox switched off
at the power supply cabinet. Have the
wallbox switched on again for a reboot.
› If the error still occurs, inspect the
charging cable and the connector for
dirt or damage.
› If the error is not corrected, contact
your customer support.