Common error message/problem, so don't freak.

Search the forum here or google for the error message, you'll see tons of threads and recommended fixes. Probably a bad bridge rectifier or U20 is blown. If U20 is blown you might have a short somewhere you'll need to track down.

Good luck. If that one fuse is indeed over fused that high, I'd also check them all for proper values just to feel safe.

Are the fuses in question really blown?

You need to either know your way around a multimeter or be willing to learn in order to figure this out. Any experience?

First off, are the fuses in question really blown?

If so, Which one?

Which led's are dark on the driver board?

Take a YouTube lesson or google " how to test a bridge rectifier". Locate BR1 on the driver board and test it to see if it's good. It could be shorted closed, in which case no power will be delivered to your fuse (and the fuse wouldn't be blown). Or could be shorted open, allowing too much power to pass thereby blowing the fuse. Very common problem.

None of your switches, etc will work until you get good power passing thru those fuses, so I'd consider this the first step.