Hey guys, stepped into this job as a favor. New 2013 Tac 50.04 MRL. Bldg and TKE says they had a electrical spike. Only board showing signs of a problem is the little UCA3 board. The Fault light is lite up. Looking at the board there doesn't seem to be much to it. the picko fuse is good. Ordered a new one as TKE was going to do, but I have this feeling that's not going to be the problem. All of my TAC 50.04 documents don't have the UCA3 board in them. Is anyone familiar with this board and its function? Is there something that would cause it to indicate "Fault"? Any advise is appreciated. Thanks Mike-