CDA Dishwasher problem?

Hi folks, any help greatly appreciated with this one! The far right green led flashes constantly (not in any series as some other posts suggest) and there is also a constant beeping noise which accompanies it. The rinse/spray icon is lit up too. If I reset it by holding the start button down and then change the cycle and restart it just goes back to the same problem.

Can anyone point me in the right direction to get this fixed?