Replacement fuses are available form electronic component suppliers. If you can get hold of one and have a suitable soldering iron you can replace it. It is a 0603 size, about 1.6 x 0.8 mm in size.

Ideally this is done with a "tweezer" style iron which heats both ends of the fuse at the same time.

Remove the old fuse (it may need a bit of force, mine was glued to the board) and fit the new one in the same place, making sure both ends are well soldered to the board.