Hello. I have a problem with the Amica 629e dishwasher pops up error 4 water overflow. The dishwasher washes and after some time she caught an error when she was pumping water. After the dishwasher was unscrewed and moved, the mistake disappears. You can attach a new program, sometimes washed to the end and sometimes again catch an error. After unscrewing the side case, no leaks are visible, the outflow is unobstructed.