ERROR STATES OF THE WALLBOX
LED states
Wallbox status
Over-tempe-
rature derating
CT coil / HEMS
charging
paused
CT coil / HEMS
derating
Loss of
communication
with HEMS
Self-test failure
or processor
freeze
Critical
temperature
4 2
Explanation
Charging possible
Due to high temperature, the wallbox only allows charging
at a lower power. When the wallbox has cooled down, it will
resume charging at the maximum power.
Charging not possible
The house power consumption is too high to permit
charging. The wallbox starts charging again when power
becomes available.
Charging possible
When the house power consumption is high, the wallbox
allows charging only at a lower power. Once the house
power consumption is normal, the wallbox allows charging
at maximum power.
Charging possible
The wallbox is unable to communicate with the HEMS network.
• Using the Configuration Manager, check your network
configuration.
• Using the Configuration Manager, check your HEMS
configuration.
Charging not possible
The wallbox has detected an internal error during a self-test.
• Have the wallbox switched off at the power supply cabinet.
Have the wallbox switched on again for a reboot.
• If the error still occurs, have the HMI cable checked
for a proper connection.
Charging not possible
This error occurs when the temperature inside
the wallbox is too high.
• If the wallbox does not recover from the critical temperature
state, disconnect it from the car. Wait for at least one hour
for the wallbox to cool down.
• If this error occurs more often, make sure that the wallbox
is protected from heat sources (direct sunlight).