16. Troubleshooting
51 www.sinetech.co.za
13
PV insulation resistance is
too low
1. Check if the resistance
between positive and
negative poles to the
ground is greater than
1MΩ
2. If below 1MΩ contact
your installer
15
A difference occurred in the
readings from the main and
1. Please disconnect AC
breaker first and then
secondary controllers
2.
3.
the DC breaker. After LCD
screen is completely off,
turn on DC breaker. Until it
shows “No Utility” on LCD
display, turn on AC
breaker. After 300
seconds, the system will
automatically connect to
the grid.
If error message persists,
please contact your
installer.
17
Communication with the
main and secondary
controllers is interrupted
20
Discharge circuit fault
21
Soft start in battery
discharge fails
22
Charging voltage is too high
1. Check if the connection
between battery and
inverter is ok.
2. Make sure battery
condition is ok.
3. Restart the inverter.
4. If error message persists,
please
contact
your
installer.
23
Overload fault
1. Remove excessive loads.
Ensure all connected
loads are less than
maximum power this
inverter can deliver.
2. Then, restart the inverter.
