Siemens SF44T553UE does not collect enough water during rinsing. ⇐ Siemens

[andrrrr]

Good afternoon. The problem is this. The Siemens dishwasher does not draw enough water during the rinse cycle. Last cycle 20 minutes before the end of the washing program. And this happens in all washing programs. That is, we start the machine, it pours water, heats it, and washes the dishes for about 30 minutes. Then he drains the dirty water and pours in a new portion of water, then heats it up again, washes for another 50 minutes, but for the third time there is not enough water (the pre-ostat does not work at this moment, that is, it is definitely not he who gives the signal to turn off the water supply) and the pump runs idle without creating the required water pressure. So I open the door, add 1.5 liters of water and the machine starts working, creating pressure and heating the water. I ran the test program and it didn’t show any errors. I took the machine apart, rang everything I could, cleaned all the hoses, the preostat, the water tank, in short, everything I could. Everything is fine. Does anyone have any ideas about this?