Our Smeg DWI612C dishwasher has a fault where the 5th light (The Pan Cycle) is flashing constantly, then after about 10 seconds it beeps twice, If you fill the base with waters it drains the water away so it appears the pump may be working.
This is the right hand LED of the five? If so, it’s not a recognised fault code and therefore the computer board has probably lost its marbles. As this is an expensive component (likely to be in excess of £100), I would seriously suggest getting a professional diagnosis before going any further.