writting this down for future people recovering from power outages:
We weren't able to lock the IMC, the alignment was not good but not terrible. With 2 Watts into the IMC, H1:IMC-TRANS_OUT16 was about 10000 counts, while the IMC was well aligned it was 11000 counts. MC2 trans NSUM however was about 6 counts, well it should be 200-300 counts.
On the whitening screen for MC2 trans (LSC> Whitening) there were errors Invalid data chn (4,3,2,1). Elenna found this alog by searching the error message, 12120, Daniel Patrick and Fil reproduced a solution like this.