This morning I woke to find that I could not make the usual cup of espresso coffee. My immediate thought was that I had done something wrong or put the capsule in the wrong way. Why was this Nespresso machine not working? (this is not my delonghi ESE single serving espresso machine, this is my Nespresso Capsule machine) I made a cup of espresso using my delonghi espresso machine, a lovely cup was made, but still, it took me an hour to realise that I had not cleaned the Nespresso machine last night, and this had caused a blockage in the water flow through the espresso coffee capsule. So make sure that you clean your Nespressso espresso coffee machine every night, otherwise you will eventually seize up the machine!