Not operating one of the two controllers hp MSA p2000 G3

[Mikezzzz]

When planning a power failure in the building, we had to turn off the HP P2000 G3 MSA Array Systems (2 controllers and 2 power supply unit). When the LED on the front panel of the figure 8.

Behind PUF flashes orange. Login to the web interface can not be on one controller. In putty can be connected to any controller, first login, but in the performance of any team, does not give any result. If you pull out a broken controller, the HP MSA P2000 G3 works. Tried to swap flash, replace the batteries in the controller, the controllers were reversed, I tried to run only broken the controller - there is no result. The logs only this error - Supercapacitor failure. Status cell 1voltage is too high (24). Article: failure (12) (p2: 3088 (or 3190,3283,3317,3139,3232), p3: 0).