Totally stumped brake lights

[Daveplumber]

hi I have A 63 plate enterprise yesterday I noticed the high level brake light and drivers side brake light not illuminating
the rear lights are working fine I popped in a new dual filament bulb and that has made no difference I cant find in the owners manual a fuse labelled for brake lights? the other thing is the high level light I removed the two backnuts but it seems still very firmly attached! just noticed this morning that both sidelights are not working either! any help much appreciated

[Opensauce]

63 plate is still under warranty, if it's not just blown bulbs then get it fixed at Cit garage. If fuses are blowing for no obvious reason then there is a fault.

[Daveplumber]

ive just popped in new sidelight bulbs and new dual filament bulbs and the top brake light bulb as well now the sidelights work fine and drivers side brake light still off anyone know which fuse it is the manual doesn't seem to list a brake light fuse

[Lighty]

If the bsi unit senses an issue with one of the lights, it can shut it down. You may need to disconnect the battery to reset this fault and it will prob start working again, assuming you have sorted the issue.