Siemens sr64e001ru ends the program almost immediately ⇐ Siemens

[wAnTed]

Hi all. I bought a used Siemens PMM sr64e001ru, the problem was with a leak, otherwise the machine worked flawlessly (according to the seller). I removed the pan, there was a slight leak from the glass (Bosch and Siemens disease... sealed it). I replaced the door bottom seal (it was torn).
I turned on the machine, no errors. I started it at 70 degrees for testing. The machine begins to “buzz”, drains the water or whatever, then there is silence for 2-3 seconds, then a sound is heard, as if it is trying to turn something (a motor or whatever) and a squeak is heard, the end of the program. I open the door, it’s dry inside, the “end” light is on. I don’t understand what’s wrong.
No water flows into the heat exchanger (plastic container on the side).
I rang the aquastop coil - there is no signal, as if there was a break, but when supplied directly from a 220V outlet, the coil is triggered and clicks inside. The rubber band that blocks the channel does not visually come off, but I blew it with air, and you can hear the air coming out somewhere inside the machine and you can lift it up 3-4mm with a small screwdriver. I think that water is supposed to be pushed through by pressure.
What else to see? Where to dig?

[Kreutzkopf]

See circulation pump. Ring the pump winding and heating element

[Artem]

See circulation pump. Ring the pump winding and heating element