Have autotrail Miami have lost power to aerial boost box have checked fuses next door all ok but no power on booster any other fuse boxes ??????????????
Best time to play with things, if it's broken , you can't break it anymore. Could be a blown internal fuse, popped cap or just a dry solder joint which finally gave up.Replacement required by the look of it,but open it up as there may be a internal fuse.