Light #2 is supposed to indicate a flooded base. You need to unplug then drag the machine out. Place a couple of towels on the floor then tip the machine over at a 45 degree and see if any water runs out. If it does you have an internal leak which needs fixing.
A quick thing to look at before you drag it out is the lower spray arm mounting. Is this mounting fixed and solid or does it move about a little? It is quite common for the lower spray arm mounting to come loose, it can usually be re tightened without having to pull the dishwasher out but you will then need to allow any water in the base to evaporate or try and remove the lower front panel and use a towel to soak it out.