Antwoord op "Why is there no espresso coming out when the pump is on?"My Problem: My espresso maker does not work. It makes some noise that starts to dial down and stops without any espresso coming out of the filter holder. Troubleshooting: Took off the filter holder and saw that the water was coming out fine. Then I tried using my single filter (that I dont usually use) and espresso came out fine. So the problem was with the double shot filter. Solution: A couple grains of coffee were stuck in the tiny hole on the bottom of the double shot filter. I removed them with the tip of a knife and everything works as normal again.