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Low
Temperatu
10
re Inside
Inverters
High
Temperatu
11
re Inside
Inverters
Extern
12
Flash
Bus
13
Unbalance
Low bus
14
voltage
Over
15
Frequency
Low
Temperature
Inside Inverters
High
temperature
inside inverters
Abnormality in
external flash
reading and
writing
Bus Unbalance
Low bus voltage
Export reduction
due to over
frequency
52
service
4. If the above reasons have
been excluded and this fault
still occurs in the LCD screen,
contact the installer
Check if the ambient
temperature is below normal
working temperature of
inverters and increase
ambient temperature
1. Check the ventilation of
installation environment
2. Avoid direct sunlight
Restart the inverter
Restart the inverter
1. Check if the input voltage is
too low
2. If not, restart the inverter
3. If yes, increase solar panel
quantity in series
Adjust the protection value
limit by user-designing
function as permitted by grid
company
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