I'd like to recommend that the solder connections where the wires attach inside the holder be checked and resoldered if needed. Then, add a layer of heat shrink to the wire and soldered connection. Examine also, as time goes by, the body of the fuse holder to make sure it remains intact and continues to securely close.
I haven't really had problems with mine but wanted to issue the caution just the same, after some had expressed concern in another forum that this kind of fuse holder falls apart, melts, is generally of poor quality, etc. I don't wish to deny anyone their experience, but I have not observed any such problems with the one I installed into my PAS. The only thing I felt I wanted to do was to resolder the connections inside the holder.