In my boat (B46/2005) there is an external fuse in the circuit between the charger and the house battery. Worth to be checked before you rip your charger out.
I'm not convinced by the victron products.
I have a solar charger (blue smart 150/70) which quit service after 2 years. Has already been changed unter warranty (5 Y), so we will see.
My quick charger (45A) does fine since 16 years, and i use it for charging my lithium batt (400Ah) (with changed charging parameters in the menu). Only issue was the blower fan inside, which got loud. I changed it 2 years ago.