Red LED's on Kora Cosmos Reference Amps

Last night 5 out of the eight red LED's next to the output tubes (on the left monobloc) went active. According to the limited manuel, this means I tripped some protection fuse. Does anybody know what to do? I would imagine fuses need to be replaced, but there isn't anything in the manuel. I am afraid to use the amp until I get more info. I have already sent an e-mail to Kora, but I am afraid it may be awhile till I get a response b/c of CES 2003.

Thanks for the help.

George