Sorotect Revo II 5.5K inverter "Bus Voltage too low" error message

[ofarhoud]

Hello,

I have a Revo II 5.5k Sorotec inverter installed with 6 X 685W panels (Total of 4110W).
Panels specs:
Vmp: 38.8v
Imp:17.66A
Voc: 42.6V
Isc: 18.74A

Battery: K-energy Lithium 10.24KWH (ES-BOX)

The problem I am facing is when the main electricity (Main) is there with 230-240V, the error 09 pops out "BUS Voltage too low" and the inverter enter in a fault mode. t happens on and off when there is main electricty to the inverter and not all the time.
I need to restart back to have it fully functional. This is becoming frustrating since I cannot see the cause of this error. I

Attached is the main screen of the inverter and the error code on IOS application.

Kindly advise.
Omar

 

[Berseker]

Hello,

I have a Revo II 5.5k Sorotec inverter installed with 6 X 685W panels (Total of 4110W).
Panels specs:
Vmp: 38.8v
Imp:17.66A
Voc: 42.6V
Isc: 18.74A

Battery: K-energy Lithium 10.24KWH (ES-BOX)

The problem I am facing is when the main electricity (Main) is there with 230-240V, the error 09 pops out "BUS Voltage too low" and the inverter enter in a fault mode. t happens on and off when there is main electricty to the inverter and not all the time.
I need to restart back to have it fully functional. This is becoming frustrating since I cannot see the cause of this error. I

Attached is the main screen of the inverter and the error code on IOS application.

Kindly advise.
Omar

any update on this issue?

check your wiring, are you sharing neutral with grid?

 

[AlexandruB]

I also have this problem, it gives the F52 "Bus voltage is too low" error and it doesn't disappear until I disconnect the Grid and manually reset the inverter.
Does this error mean that the Grid voltage has dropped below the set value? A possible solution could be to change the AC input range from the Grid?