Resolving Errors; Error Messages During The - Mercedes-Benz Wallbox Home Operating Manual

Resolving errors

Your Mercedes-Benz Wallbox Home is engineered for maximum operational safety and the highest possible charging reliabil-
ity. Should a malfunction occur in practice, this is indicated by the multi-colored LED display on the lower part of the housing
cover. The following chapter describes how you recognize error codes and which measures you must take to resolve them.
Error messages during the charging procedure
In some circumstances, malfunctions and disruptions of the charging procedure may occur that prevent the proper charging
of the vehicle according to IEC 61851-1. The Mercedes-Benz Wallbox Home independently detects possible internal errors as
well as errors on the part of the vehicle and shows them via the LED display. To represent different error states, the multicolor
LED will flash in a specific, repeating pattern. The following error states are displayed:
LED display (cyclical)
PLEASE NOTE!
You can find a comprehensive list of all error messages in the installation manual for your Wallbox.
For most error states, the Wallbox automatically reinitiates the charging procedure, checking communications with the
vehicle. However, in practice, it is advisable to manually restart the Wallbox by switching the power supply off and back on via
8
Error description
If the LED flashes red once and then green four times, the Wallbox has
detected an error and will automatically trigger its internal RCCB after 20
seconds. Switch the power supply of the Wallbox back on via the RCCB in
order to reset the device.
If this error repeats or persists, an internal malfunction has occurred and the
Wallbox must be replaced. Take the Wallbox out of operation (see page 9)
and contact your local Mercedes-Benz technical support.
If the LED flashes red once followed by blue and green, the Wallbox has
detected an internal error. Switch off the power supply of the Wallbox via the
upstream miniature circuit breaker in your domestic power distribution and
then back on again in order to reset the device.
If this error repeats or persists, an internal malfunction has occurred and the
Wallbox must be replaced. Take the Wallbox out of operation (see page 9)
and contact your local Mercedes-Benz technical support.
If the LED flashes red once, followed by blue, green or yellow, the Wallbox
has detected an error. The Wallbox will automatically re-initiate the charging
procedure in order to reset itself.
If the error repeats or persists, an analysis must be carried out to determine
whether a malfunction has occurred in the vehicle or in the Wallbox. Take the
Wallbox out of operation (see page 9) and contact your local Mercedes-
Benz technical support.
If the LED pulsates on green and flashes on red or blue, the wallbox is reduc-
ing the charging current. Charging operations can continue with reduced
charging output.
If the error repeats or persists, an analysis must be carried out to determine
its exact cause. Take the Wallbox out of operation (see page 9) and con-
tact your local Mercedes-Benz technical support.