SMART 3W72S2, Installation Manual, Page: 19 / 36

smart Wallbox Error detection and solutions 15
PLEASE NOTE!
Should the power supply be faulty, please take the wallbox out of operation (see “Taking
the product out of and back into operation.” on page 21) and contact your local smart
technical support.
Error codes and solutions.
To represent certain errors, the indicator LEDs will illuminate and flash in a specific, repeating pat-
tern. Error codes F1 to F10 are displayed at 200 ms intervals: LEDs may be illuminated or extinguished
permanently, or may flash for 200 ms. You can find the correlations between visual display and errors
in the following list:
200 ms 200 ms 200 ms 200 ms 200 ms 200 ms 200 ms 200 ms 200 ms 200 ms
Description
Error F1: The main contactor of the wallbox does not
open.
The green LED flashes four times, the blue LED
is OFF, the red LED is continuously ON.
Error F2: The firmware has detected a disallowed op-
erating state during the initial or periodic self-test.
The green LED flashes three times, then the
blue LED flashes once, the red LED is continu-
ously ON.
Solution: In both cases, switch the power supply off and then back on again. If the error continues to
occur, take the wallbox out of operation (see “Taking the product out of and back into operation.” on page
21) and contact your local smart technical support.
200 ms 200 ms 200 ms 200 ms 200 ms 200 ms 200 ms 200 ms 200 ms 200 ms
Description
Error F3: The internal DC fault current module has de-
tected a DC fault current.
The green and blue LEDs alternately flash twice
each, the red LED is continuously ON.
Solution: If the 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 termi-
nated: 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, always consider the notices provided in
the operating manual of the vehicle.