Like this my multiplus II 5000VA won't turn on. I installed ess using veconfigure, via mk3 cable, but now the unit won't turn on. When power is supplied it hums, so the transformer is connected but with the switch in position I and II no lights, nothing.
I cannot connect to it using veconfigure with pc or using raspberry pi running venus os.
Is there a reset procedure for the Multiplus?
In the question linked to above the problem was solved using an MPPT but I have none at this time. My plan is use ess and later AC coupled solar.
Grateful for any help.