It washes in the Service, but doesn’t wash at home ⇐ Bosch

[Yulia86]

When the dishwasher is at home, it washes correctly once, but the second time it gives the error that the faucet is on. We send it to the service - everything works there without errors several times in a row. At home, the water pressure is good, the filter has been cleaned, the problem is that the PMM is not happy with something at home. Several years before this, the machine worked properly, we connected it exactly the same way as always, nothing changed at the connection point. What could be wrong???