According to gomog diagrams it should be a 10 amp fuse, which also feeds the wipers. So if the wipers still work, it is unlikely to be the fuse. The diagram doesnt show numbering of fuseways but it is about half way along on one of the fuse banks.

Doug
2011 Plus 4 in Rich Maroon

1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900