I am having the same issue, but with a 12k. Have you had any luck with the firmware update? I know signature solar has firmware available for mine. Not sure about your specific model.
I was planning on using the charge controller built into the growatt, it has two inputs so I was hoping to have the main south facing array in one input, and the SE and SW array in the other. In this video on this combiner box...
This is being typed on mobile, apologies for any errors.
The wife and I have bought a currently off grid home that has, for us, an undersized solar system. The system works perfectly as intended but does not meet the demands of work from home and a two and a half year old who wants to do what...