With the error 02 displaying, I have another case - the washing machine takes water (you can clearly hear such a "hissing") and it lasts quite a long time, then E02 appears on the display and stops. An interesting fact is that the error pops up at different times and I do not know what the washing stage was (whether it was still washing, the first rinse or the final, or maybe when taking the laundry). The pressure in the water supply network is good, the strainer on the solenoid valve is very clean. What could be the cause of the error?