@Mr T

Good people many thanks for all the input, it turned out indeed its the bms cable, the cable I had came wihh one of the previous inverter (axpert) so I used it since it said pylon tech. The pin set up is pin 1 and pin 2 connected at the battery side and to the inverter pin 4 and pin 6. looking at the sketches that were sent its wrong. So I used the USE2 settings provided above until I can make myself the correct wiring for the bms cable. Since I have changed those settings, my battery is getting full. And because I'm prioritizing the grid first and this systems is purely back up, it is working accordingly. I will monitor until we have power outages to see if it works proper. I will also provide feedback on it. I was just on the verge of taking this system down, and because of this forum you saved me lots of headaches. A million thanks please continue to be a blessing to this world. I hot this post will also help someone else in future.

A million thanks!! Everyone

I will do that and feedback, so after doing that I can go back to settings L1?

Is the problem the cable? Or this menu setting?

01 - uti 02- 40A 03- apl 04- sds 05- use 06- ltd 07 - tfe 08-230v 09-50hz 10- 2(even though I only have one battery pack) 11-20A 12-23v 13- 27v 14-Snu 15- bof 16-lon 17-aon 18-bye 19-28.2v 20- 27v 21-22.0v 22-sbe

Many thanks it's SPF 3000TL HVM-24 battery is up2500. When I select the L1 it gives me error 20 and 04. Only wants to work on USE

@Pax, thanks for your input I'll verify and change my values like yours and feedback

Good day everyone, I have installed a 3kw Growatt inverter with pylontech 24v battery. The priority is set to UTI. BUT when both sun and grid are available the inverter still uses the battery. And when loadshedding eventually comes battery is only 25%. And defies the whole purpose. I have 2 X 400w panels to the system. Pls help as I have tried changing these priorities and no matter which one I choose the inverter uses the battery always