Multiplus not turning on

Purchased a used Mutliplus 24/3000/70. Battery measured on the Victron lugs 26.4v, jumper between pin 1&2 on remote, all dip switches off. Switching the inverter on, nothing happens. What else should I check?

You could unscrew it to see if you can detect any damage.
Of course, remove all connecting cables first !!!

Any Led´s on or flickering

Unscrew what?

There is no response at all. No lights, clicks, buzzing, hums, nada