Sungrow SG110CX - Page 116

User Manual 9 Troubleshooting and Maintenance
Fault
Code
Fault
Name
Possible
Cause
Corrective Method
8
Output
overvolt
age
The output
voltage ex
ceeds the
set limit val
ue
1. Check whether the alarm still exists after this
alarm is cleared.
2. If the alarm persists, please contact Sungrow
Customer Service.
16
Overcur
rent
The input
current ex
ceeds the
set limit val
ue
1. Check whether the alarm still exists after this
alarm is cleared.
2. If the alarm persists, please contact Sungrow
Customer Service.
32
Overtem
perature
The operat
ing temper
ature is too
high
1. Take measures to reduce the temperature, such
as improving heat dissipation conditions.
2. Check whether the alarm still exists in the early
morning or evening.
3. If the alarm still exists with correct settings,
please contact Sungrow Customer Service.
128
Output
current
backfeed
The out
put current
of the opti
mizer back
feeds
1. If strings are connected in parallel, check
whether the number of modules varies consider
ably between the two strings, or the module is se
verely shaded.
2. If the alarm persists, please contact Sungrow
Customer Service.
512
Hardware
fault
A hardware
fault occurs
to the opti
mizer
Please contact Sungrow Customer Service.
1024
Update
failed
The opti
mizer soft
ware fails to
upgrade
1. Check the light condition, and update the opti
mizer again if the light is normal.
2. If the fault persists, please contact Sungrow Cus
tomer Service.
• If there is a string current backfeed fault, first check whether the optimizer is
offline.
• Contact the dealer if the measures listed in the “Troubleshooting Method” column
have been taken but the problem persists. Contact SUNGROW if the dealer fails
to solve the problem.
107