Check your manual to see if you have a drain pan at the bottom of the unit, and a 'float' that checks for water collecting there. On at least some Asko models, water collecting in the pan causes the float to rise, which then changes the operation of the dishwasher. Once that float switch turns on, the diskwasher will always run the drain pump whenever power is applied.
If this is the case for your machine, remove the kick panel. There likely is another panel behind that which covers the 'internals', including the drain pan area. You'll have to remove all of the water in the pan, and that will lower the float and return the controller to normal operation. THen you will have to diagnose the cause of the water collecting in the pan.
Another possibility is damage to the float such that it has turned on it's switch despite no water collecting in the drain pan. I've heard that in some cases a mouse will chew on the float and damage it, causing such machine operation.
In another thread
, I posted my solutions to one cause of water collecting in the drain pan. In that case the drain pump was no longer reliably moving water out of the sump area inside the dishwasher. I had thought it was the manual dial control on my d1706 unit, until I learned that the dishwasher has this 'special' drain pan mode.