PrimeVOLT PV T U Series, Installation & Operation Manual, Page: 61 / 69

59
Error code Table-3
Error Condition Error Code Indication
Bus under voltage F1
Step1: Please turn off AC and DC.
Step2: Restart after 10 minutes.
Step3: If it continues to occur, please
replace another inverter.
Bus over voltage F2
Step1: Please turn off AC and DC.
Step2: Restart after 10 minutes.
Step3: If it continues to occur, please
replace another inverter.
Internal
communication loss
F3
It's inverter's master CPU and auxiliary
CPU communicates abnormally.
Master expect slave
firmware version not
correct
F4 It’s reserved code for other application.
EEPROM fail F5 It’s reserved code for other application.
Consistent warning F6
It's inverter's master CPU and auxiliary
CPU detect fail.
Inverter over current F7
It's the Grid protection.
Check if it is wrong installing?
For example, L1 of the grid connected to
L1 and L2 of the inverter.