Code Description Behaviour Remedy
143 Emergency power overload Emergency power mode is
interrupted. The inverter
attempts to start emergency
power mode three times; if
this is unsuccessful status
code 145 is displayed
Check emergency power cir-
cuit; if this status code keeps
recurring, contact your sys-
tem fitter
144 Emergency power short-cir-
cuit
145 Status code 143 or 144 has
occurred more than three
times
Status codes –
Class 3
Class 3 includes status codes that may occur while feeding energy into the grid, but gen-
erally do not cause the process to be interrupted for any length of time.
The inverter disconnects automatically from the grid, the grid is then monitored as spe-
cified and the inverter attempts to resume feeding energy into the grid.
Code Description Behaviour Remedy
301 Overcurrent (AC) Short-term interruption while
feeding energy into the grid.
The inverter repeats its start-
up routine.
*)
302
Overcurrent (DC) or battery not
detected
303 DC module overtemperature (PV) Short-term interruption while
feeding energy into the grid.
The inverter repeats its star-
tup routine.
Purge cooling air
openings and heat
sink; **)
304 AC module overtemperature
305 No power being fed in, despite
closed relays
Short-term interruption while
feeding energy into the grid.
The inverter repeats its star-
tup routine.
**)
306
There is not enough PV power
available for feeding energy into the
grid and no power has been
requested from the battery.
Short-term interruption while
feeding energy into the grid.
The inverter repeats its star-
tup routine.
Wait for sufficient insol-
ation; wait for an
energy management
command;
**)
307
DC low
DC input voltage too low for feeding
energy into the grid
Short-term interruption while
feeding energy into the grid.
The inverter repeats its star-
tup routine.
Wait for sufficient insol-
ation;
**)
IMPORTANT! Due to the low level of insolation early in the morning and in the evening, the status codes 306
(Power low) and 307 (DC low) are displayed routinely at these times of day. These status codes do not indic-
ate any kind of fault.
308 Intermediate circuit voltage too high Short-term interruption while
feeding energy into the grid.
The inverter repeats its star-
tup routine.
**)
309
PV input voltage too high
313 Battery input voltage too high.
Short-term interruption while
feeding energy into the grid.
The inverter repeats its star-
tup routine. This service code
may occur sporadically even
though there is no actual
fault.
Switch on, connect or
check battery;
*)
122
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