The TriCaster 8000 Control Surface does come with an additional fuse in the instance the primary fuse is blown and the control surface does not seem to be powering up.
1) The fuse box is located underneath the power outlet. Pull the tab to reveal the two fuses.
2) The extra fuse is within the lower compartment box. Simply push out the top fuse and replace with the one below. You can then attempt to power up the control surface again. If the control surface does not power on after this, please contact Customer Support for inquiries regarding repair service options.