| Error resolution and maintenance – Identifying errors
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Error resolution and maintenance
Under certain circumstances, malfunctions may occur during operation that prevent or restrict charging. The Wallbox
eMH2 independently detects errors and indicates them in the form of cyclically repeating LED flash patterns.
Identifying errors
The following errors may occur:
Error F1
Description Flash pattern
Per cycle, the red LED flashes once, followed by
the green LED flashing four times.
Cause Suggested solution
The main contactor of the wallbox does not open.
Check the RCCB of the wallbox and bring its pivot lever into
the I position if necessary.
Switch the electricity supply for the wallbox off and then
back on again. This should automatically reset the error.
Should the error persist, take the wallbox out of operation
(see page51) and contact a qualified specialist electrical
contractor to resolve the error.
Error F2
Description Flash pattern
Per cycle, the red LED flashes once, followed by
the green LED flashing three times and the blue
LED flashing once.
Cause Suggested solution
The firmware has detected a disallowed operat-
ing state during an initial or periodic self-test.
Switch the RCCB of the wallbox off and then back on again.
This should automatically reset the error.
Should the error persist, take the wallbox out of operation
(see page51) and contact a qualified specialist electrical
contractor to resolve the error.
Error F3
Description Flash pattern
Per cycle, the red LED flashes once, followed
by the green and blue LEDs alternately flashing
twice.
Cause Suggested solution
The internal DC fault current module has detect-
ed a DC fault current.
When this error occurs for the first time, the charging
procedure is interrupted for 30 seconds and then restarted
automatically. If the error occurs again immediately, the
charging procedure is terminated permanently: A new
charging procedure is only possible after disconnecting the
vehicle from the wallbox.
There is possibly an electrical fault in the charging system
of the vehicle. Do not charge the vehicle, and immediately
contact a qualified specialist repairer. In addition, consider
the notices provided in the operating manual for the vehicle.
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