Dishwasher cycle stops and readout says F2 - Asko D1776 Built-in Dishwasher

Hello, welcome to FixYa.
Based on your post, "Asko 1485 Dishwasher. It is showing a F2 code", the good news...It is likely nothing very serious, but the "resolve" requires some investigation on your part.
What the F2 means is the control has indicated a overfill.
**before proceeding turn the dishwasher power off via the home breaker panel, or unplug it from the wall if that is possible...most are hard wired to the home electrical...safety first**
The first thing to do is remove the toe panel/kick plate and inspect the base for water. There will likely be water present.
With the aid of a sponge, towels, or a wet-dry shop vacuum, absorb the water from the base, that should restore normal operation...it should be known that if you leave the unit for a few days, the water in the base will evaporate hence appearing as everything is fine again...if any other problem/leak does exist it will return.
If the unit works fine after resetting the power/breaker and soaking up any water present, it can likely be chalked up to a drain back-up or obstruction in the drain hose or pump... (it could mean a faulty drain pump so you'll need to pay close attention the next few times you run it)
**The float is primarily the last ditch safety to prevent disaster in the event of a overflow, back-flow, or leak underneath the unit and the illuminated F2 letting you know to service or call for service to the unit**
Hope this helps move you forward, or even better resolves the issue altogether. Let me know of course, I will help you move further if necessary. Good luck. Please take a moment to rate my solution and your experience here at FixYa today.
Regards,
Macmarkus :)