Technical Support

Hello Gurus,

Hopefully someone here can provide some insight into this strange behavior and provide a fix.

I have a SunSynk 8k with firmware Ver. M 6.0.0.9 / C E.4.1.C

I have the following load: 2.8kW to load/UPS

5.4kW from PV - bright sunny midday

2.5kW into battery

I then turn on a 3.6kW device and load goes from 2.8kW to 6.4kW - this exceeds the 5.4kW solar capacity.

What I expected was

6.4kW to load/UPS

5.4kW from PV - bright sunny midday

~1.0kW from battery

What I observed is that the inverter is prioritizing battery over solar PV when the load exceeds PV.

6.4kW to load/UPS 1.7kW from PV (there is 5.4kW available)

5.1kW from battery

(There is also ~400W unaccounted for)

As soon as I turn off the 3.6kW load, the inverter reverts to the correct priority as in image 1.

Any ideas how to get the SunSynk to always prioritise available PV?

Is there a setting for this?

Please help.