Dishwashers need a certain minimum amount of water in a relatively short time. If the intake is too low, modern dishwashers switch off automatically to protect themselves from damage. The amount of water available can be checked with the bucket test.
This is how the bucket test works
If the dishwasher does not fetch water, it may be due to a defective pump or insufficient flow. Use the bucket test to check the inflow.
1. Disconnect the dishwasher from the electricity.
2. Close the water inlet on the angle valve or tap.
3. Remove the aqua stop, if present.
4th. Place the bucket under the water outlet.
5. Look at the clock and let the water run for a minute.
6th. Measure the amount of water in the bucket.
In one minute, at least ten liters of water should have flowed into the bucket, so that the water flow is given in sufficient quantity and speed. Additional cleaning of the inlet strainer is recommended.",