Fault Codes Blog
- Keith Gough
- Oct 6, 2022
- 1 min read
I have set up a forum on web site just dealing with fault codes.
We have put up the common causes in the common fault codes, the form can be added to and edited by anybody I think it is an excellent place to share common knowledge and help each other.
hi,i have Inverter(SUNSYNK-5K-SG01LP1), installed in a rural location in Eastern Rwanda.
There is no AC output and it will not charge the batteries from PV input nor AC input and The PV LED lights up when I connect the PV string, but the inverter does not display any PV voltage. The error code is "F55 - DC_VoltHigh_Fault".
The system was installed with appropriate earthing and surge protection devices.I have already checked the voltage range of the battery/photovoltaic panel, and I have turned the device off and on again, but the error code persists. so what can i do to fix it?
Only asking as I only see the questions. We also need an answer on the F20 Tz_DC over current fault. I’ve been told it’s a ground fault on the panels but not picking this up anywhere and also same error at night sometimes. Thanx
Do anyone get any answers or do you just ask the questions?
Hi everyone, I have picked up this problem after a few years of operation. Any advice will be helpful.
Good day.
F26: BusUnbalance_Fault
F26 - The DC busbar is unbalanced
The inverter will report the F26 error when the hybrid is in split phase mode, and the load of L1 and L2 are different, which will damage the IGBT (insulated gate bipolar transistor)
PROBLEM: This is a headscratcher for me because I run 220V single phase on a 16kW inverter.
There is no split phasing in this setup. Any other reason or symptom that could cause this?
Only happens when the grid input is unavailable, otherwise system runs normal. Seems if I reduce the load by a margin, inverter operates normally.
CONNECTED: 20kW Sunsynk batteries and 3 PV strings of about 20kW total, surge arrestors and a time delay…