Problem one is a defective tachometer. All 2010's were recalled - see if your local dealer can still get it replaced. If not, the work around is never turn off the boat when its on depth display (any other screen is fine). If its locked up turn boat on, set display to some screen other than depth, turn off, wait for displays to go dark, restart.
Problem number two sounds like a bad pump tripping the circuit breaker. I have had to replace drain 2 pumps in my 2010 already. The front drain pump should be under the flip-up seats in the walk though. You can swap with another pump to test if that is the problem. Replacement pumps cartridges are available here:
http://www.bakesonline.com/detail.aspx?ID=1613Welcome to the community and enjoy the boat!