Fronius IS 15 Operating Instructions Manual page 38

Service codes
Error number 320 – 323
displayed
Internal err
(continued)
Cause:
Remedy:
Error number 331
Internal err
Cause:
Remedy:
Error number 333
Over current
Cause:
Remedy:
Error number 334
Internal err
Cause:
Remedy:
Error number 335
Internal err
Cause:
Remedy:
Internal err
Cause:
Remedy:
Error number 391
Display lost
Cause:
Remedy:
Error number 392
Display fault
Cause:
Remedy:
Error number 393
Old software
Cause:
Remedy:
Error number 401
Slave fault
Cause:
Remedy:
Error number 402
Sync lost
Cause:
Remedy:
Error number 403
Sync lost
Cause:
Remedy:
Device error
Contact After-Sales Service
Device error
Contact After-Sales Service
Short-circuit at AC output
Disconnect consumer and remedy short-circuit
Device error
Contact After-Sales Service
Device error
Contact After-Sales Service
Error number 336
Device error
Contact After-Sales Service
Communication with display not possible
Contact After-Sales Service
Display error
Switch device off and on again
The AC processor software is not compatible with the new display
processor firmware
Update the software (After-Sales Service)
In multi-device operation, the master device detected an error in one
of the slave devices
Rectify the error on the slave device
Synchronisation signal not received from the master device several
times
Check the communication connection
A reset was triggered on the parallel bus
The device will rectify the error automatically
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