There is a problem with the water inlet.
Make sure that the stopcock is fully open.
Please clean the water inlet filter in accordance with the operating instructions.
Make sure that the water inlet hose is not kinked. Remove any kinks or loops from the water inlet hose. Keep an eye on these points afterwards, as the plastic may weaken and the material may tear. In the event of any damage, the water inlet hose must be replaced. If this is necessary, contact the Miele Customer Service Department.