Good day,we do installation RS450 / 100, 3pcs 3f Multiplus II 48/3000, Cerbo GX. 12kwh pylontech.
6 instalation with same hardware...
Everything works as it should, but ...
something is terribly wrong with the inverters. 50Hz humming is random and terribly noisy. Most at low loads.
If the grid is disconnected, it's better.
The firmware is the last one, xxx494.
The fan is also very noisy but it will be difficult to solve.
The sound is heard in 3-4 seconds on the video.
It doesn't seem like that but it's very! loud.
I don't get it. The inverter is not loaded at that moment, no large fluctuations of any values and at the same time it screams like this.
Multiplus I was better. I did not expect such a downgrade in quality.
Customers complain.
Is there a solution?
Pavel
