I picked up a couple of scrap daikin split Ftxs60bvmb The fuse on the control board is dead but it only says 3.15a 250v Is this a ceramic slow blow/ anti surge or a fast blow fuse?
I would first check the electronics before replacing the fuse. Why is the fuse blown? Beside that question:
Normally, control boards or electronics (without transformers or motors) are protectet with fast blowing fuses. Here I would use (and it is not a big problem to use) a fast blowing fuse.
In the manual, the manufacturer only describes the fuse with 3.15 A only, and if you want to be really sure you have to contact the manufacturer.