It could be that the fuse has blown or slipped out of its holder. Open the head up and have a look. Be very careful to give everything a chance to power down and not have any residual current that could bite you. Use an insulated object to try pushing the fuse down into its holder if it is not in properly.
I had this issue with my Ashdown EB Combo and moving the fuse fixed it.
Hope this helps!
Originally Posted by behndy
BruceBass is about 42 inches tall, nearly as wide. rippling muscle beating the hell out of a bass twice his size. FUNK GNOME