I cannot find that EFI Fiery model in our Xerox Knowledgebase, so I would recommend checking out the Support options on the EFI Fiery Website.
The firey power switch is always on but sometimes the red led numbers on the front are dark and fans are not spinning.
i have to hit what looks like a reset switch next to power on/off switch and it comes alive
a couple minuets later it is accessable from network and the firey icon shows up on main control panel
is this power saving and/or can it be adjusted to always stay on