Hello. The title dishwasher causes problems. There was an A5 error and did not drain the water, but after cleaning it stopped appearing. Now, however, there is an error A1, which I guess, means some leak, because it appears, say, about 30 minutes before the end of any cycle. Water and mistake appear on the bottom tray. After cleaning the trays, the styrofoam sensor no longer signals anything. Only the 8-minute program comes to an end. How do you look for a leak? Theoretically, I would rule out sealing the chamber due to the fact that it works an hour and then it spills out, unless it gently leaks somewhere and the sensor locates it after some time. If the dishwasher can not work on the side, how to find the cause?