Class 6 Status Codes; Class 7 Status Codes - Fronius Symo 10.0-3 208-240 Instructions De Service

**) If this status code keeps recurring, contact your system installer
Class 6 Status Class 6 status codes may require the intervention of a trained Fronius service technician.
Codes
Code Description
601 CAN bus is full
603 AC module temperature sensor faulty
(L3)
DC module temperature sensor faulty
604
607 RCMU fault
608 Function incompatibility (one or more PC
boards in the inverter are not compatible
with each other, e.g., after PC board re-
placement)
*) If status code persists: Contact a Fronius-trained service technician
**) Fault is corrected automatically. If this status code keeps recurring, contact your system
installer
Class 7 Status Class 7 status codes concern the inverter control unit, configuration and data recording,
Codes and can directly or indirectly affect grid power feed operation.
Code Description
701– Provides information about the
704 internal processor status
Conflict when setting the in-
705 verter number (e.g., number
assigned twice)
706– Provides information about the
716 internal processor status
721 EEPROM was reinitialized
722– Provides information about the
730 internal processor status
Initialization error – USB flash
731
drive is not supported
Initialization error – overcurrent
732
at USB flash drive
733 No USB flash drive inserted
Behavior
Inverter does not feed ener-
gy into the grid.
The inverter will automati-
cally attempt to connect
again and, if possible, re-
sume feeding energy into
the grid
Inverter does not feed ener-
gy into the grid.
Inverter does not feed ener-
gy into the grid.
Behavior
Warning message on the
display
-
Warning message on the
display
Warning message on the
display
Warning message on the
display
Warning message on the
display
Warning message on the
display
Remedy
Update inverter firm-
ware; *)
*)
Reset the status code by
pressing the "Enter" key.
The inverter resumes
feeding energy into the
grid; if the status code
keeps recurring, check
the entire affected pho-
tovoltaic system for any
damage; **)
Update inverter firm-
ware; *)
Remedy
*)
Correct inverter number in the
setup menu
*)
Acknowledge status code; *)
*)
Check or replace USB flash drive
Check the USB flash drive file
system; *)
Insert or check USB flash drive; *)
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