Steam sound at the machine start up

Hello, I just bought a new Philips coffee machine model ep 3510.

The machine is 2 weeks old.

My problem is that I started to hear a steam noise after start up the machine, and I think I feel that the steam not strong as it was in the beggining.

Im adding a video so you can hear this noise, can you please tell me if its ok?

thank for the helpers.

Here is the link with a video I made, you can hear it perfectly.

https://drive.google.com/open?id=1HYqctT...