Fronius Symo Service Manual page 112

Code Description
775 Faulty programming of the
power stage set
782* - 783* Error during update
784* Waiting on flash / busy
789* Setup CRC failed
794* Flash data structure defect
901 Deviation of measurement
channel 1
902 Deviation of measurement
channel 2
903 Deviation of measurement
channel 3
904 Deviation of measurement
channel 4
905 Deviation of measurement
channel 5
990 Deviation of output from ra-
diation sensor value too big
991 Deviation of radiation sen-
sor too big
992 No radiation sensor values
or value(s) not permitted
993 Faulty energy report
996 No connection to Fronius
Solar.web
997 Deviation between invert-
ers
112
Behaviour
1. Power stage set or filter
board not programmed
1. Occurs once
2. Recerbo defective
1. Occurs once
2. Recerbo defective
1. Wrong / defective data in
flash
2. Recerbo defective
1. Wrong / defective data in
flash
2. Recerbo defective
Current of channel 1 deviates
from the other channels
Current of channel 2 deviates
from the other channels
Current of channel 3 deviates
from the other channels
Current of channel 4 deviates
from the other channels
Current of channel 5 deviates
from the other channels
Difference between the perfor-
mance of the irradiation sensor
and that of the inverter too big
The radiation sensor deviates
too far
The radiation sensor does not
return any values or returns
values that are not permitted
Faulty energy report due to
missing archive values
No connection to Fronius So-
lar.web
Deviation of the kWh value be-
tween inverters depending on
the settings in Fronius So-
lar.web
Remedy
1. See device -> info menu:
look for missing versions infos
and change defective print
1. Automatically corrected
2. Change Recerbo
1. Automatically corrected
2. Change Recerbo
1. Update software
2. Change Recerbo
1. Update software
2. Change Recerbo
Check settings, DC fuse and
modules
Check settings, DC fuse and
modules
Check settings, DC fuse and
modules
Check settings, DC fuse and
modules
Check settings, DC fuse and
modules
Check archives values, shad-
ow of the modules, blown
string fuse or defect
Check if your radiation sensor
is soiled, shaded or defect
Check the cable lines of the ra-
diation sensor
Check archive values at Froni-
us Solar.web server or Data-
logger
1. Check LED status on Data-
logger
2. Restart Datalogger
3. Check internet connection
4. Check if customer has got
timer to switch off internet con-
nection and time interval set-
tings is too short
Check settings in system ad-
ministration in Fronius So-
lar.web (real Wpeak per
inverter and deviation), inquire
if there are shadows etc.