Yeah, I'm going through the same thing on mine, except I'm getting the F114/F115 error.

F114 is the pre-bridge fuse for BR1. It supplies the +18v for the lamps, but also downstream the +12v for the switches. Pretty much half the LED's on the power driver board will shut down if that fuse is out.

Usually BR2 will need to be replaced at the same time, as they share a heatsink. BR2 supplies the main 5v, and if that is starting to fail it will become a reset problem. C5 should usually be done at the same time as BR2.

Ed at GPE is my normal source for that sort of thing, he carries some very nice bridges for this application... IIRC 35A 400v rated.

-Hans

C5 is the filter capacitor.
GPE part number CER-15000uF-25V
This one isn't 100% necessary, as it's more often replaced to deal with reset issues.
More of a preventative thing, should you decide to do it, but don't worry if you don't.

The rectifier is GBPC3504W, grab two of those, and replace both of them under the aluminum heatsink.

-Hans

Can also use thermal transfer paste too, since the heat sink is mechanically held on there. I usually have a few tubes of the stuff laying around for computer building.

-Hans