Depowering And Electrical Faults

[richard]

I have a 2005 1.9tdi zetec auto and recently had loss of power as if clutch slipping and electrics went haywire(no air con,warning lights etc),the dealer said it was a blown fuse board and replaced it,was ok for 2 weeks then experienced similar problems.dealer unsure what it is, any ideas?would be most helpful