Washing machine MPM 5611-PA-22 - error F4, strangely "growls", and the

The MPM 5611-PA-22 washing machine first stopped during the "cotton" program (rinsing stage) and displayed error F4. After turning off and then again (quick) turning on the "Rinse" program began to "growl" and the drum stood still. After switching on again to the same program ("rinsing"), the washing machine started, seemingly everything was ok. After the program ended, the washing machine began to "growl" again and the drum was standing. Because the previously called service canceled me for PLN 150 for taking the pipe out of the wall and taking out the spring with the farfocels wrapped around it, I am afraid that it may be similar now. At that time, however, the washing machine did not growl, but did not pump out the water. Now the drain is not clogged and I do not know what else I can check before I call the service (and we have a long May weekend) and again it turns out that I will spend a lot of money on some obvious trifle.

In the manual you have:


So get to work, remove the filter and remove from the pump what has fallen into it or see if the pump itself has not crumbled.

Thanks.

I checked the filter and the hose and there was nothing there, but ... I took out the laundry and turned on the washing machine "empty" and it worked. So I put in only part of the laundry (it worked). Now I wash without a problem, but I put in a little less laundry. There was one change of sheets and a towel at the time, so she shouldn't act like that, but damn they know, "I'm blowing for the cold" now. Is it possible that the laundry was too heavy?