User Manual
76
ground connection is abnormal.
2. restart the inverter.
3. Seek help from the installer or manufacture.
1. Restart the inverter.
2. Seek for help from the installer or
manufacture.
Check whether the fan is blocked by foreign
matters, clean them if necessary.
1. Check working status of battery.
2. Check if battery is alarming.
Turn off inverter and remove the back-up
connector. Use a multimeter to measure
whether there is voltage existing on the back-
up connector.
Check whether the battery voltage or PV input
voltage is normal
1. Restart the inverter.
2. Seek help from the installer or manufacture.
Check whether the load power on back-up side
exceeds the maximum output power of inverter.
1. Check whether there is an impact load on the
back-up side and whether the load power is too
high.
2. Check whether back-up side is short circuit.
1. Check whether there is an impact load on the
back-up side and whether the load power is too
high.
2. Check whether back-up side is short circuit.
1. Check whether there is an impact load on the
back-up side and whether the load power is too
high.
Internal Fan Fault
External Fan Fault
Bat OV
Backup OV
Bus Volt Low
Hard Fault
Backup OP
Inverter OV
Inverter OF
cable are in poor connection on
AC side.
Inverter's internal fan got failed
Inverter's external fan got failed
Battery protection got triggered
Abnormal voltage exists on the
back-up side
Abnormal power schedduling
Hardware protection got
triggered
Output power over limitation on
back-up side
The load power exceeds the
range of its limit of inverter in off-
gird mode
The load power exceeds the
range of its limit of inverter in off-
gird mode
Error Message Description Solution