The faucet is not drawing water ⇐ Bosch

[Sergey.Sergey]

Pmm bosch spv25dx00r/45 did not heat the water, they repaired the heating element (there was a break), after that it stopped drawing water (that is, it fills 1/4 of the plastic container and stops), checked reed switch opens the contacts with a magnet. Changed reed switch the problem remains.
The coil on the aqua stop is ringing, there are no water drips. I tried to start it with the water turned off, waited until the error signal sounded that there was no water and opened the water tap, the PMM started and worked the cycle at the end the tap was on. I tried to open the water supply tap a little - it worked its cycle for a little while without errors. So at low water pressure it has been working without errors for a month. Who knows what the reason might be?