When no water is drawn from the water tank of your Philips/Saeco espresso machine, it is because air is trapped in the machine and blocking the water supply. Check out below on how you can solve this, as well as other possible causes and solutions.
It is possible that the water tank is not placed properly into the machine, which no water will be drawn out.
For espresso machine with water tank on the front of the machine, ensure that the water tank is pushed fully to the back to make sure it is well inserted.
For espresso machine with water tank on top of the machine, ensure that the area under the water tank is free from dirt, particles or coffee beans.
When the hot water spout got clogged, remove the outer part of the panarello/classic milk frother and check if the spout is clogged with lime-scale (white particles in or around the spout).
If there is a build-up lime-scale, use some descaling solution to remove it.