My Cloud Home duo fan problem

Good morning,
the fan of my MyHome duo always spin at maximum speed making a terrible noise. I tried to reset the NAS, to uninstall the HDDS but nothing worked.

Anyone encountered this problem before?
There is a solution?

Thanks to all

This has been described before in this subforum, it is a motherboard short and is likely irreparable unless there are other descriptions not described in the very short original post above.

Previous thread description from September, 2023: