As you can see below, it has a steam spout. This actually works as a valve, if you “open” the spout (turn it outwards), water (or steam) flows through the spout. Turn it inwards and the valve closes and water comes out through the portafilter.

Quickmill 820R

When making coffee, the steam spout would leak water. Without the coffee (free flowing water), it would not. Looks like a leaky o-ring of some sort. Google to the rescue, which gave me this link: http://my.opera.com/aventijn/blog/repairing-a-leaking-quickmill-820

Fellow Dutchman, coffee lover no doubt and handyman at the same time. What a combination and what a post. It took some courage and elbow grease but I made it! And the Quickmill as well And saved a few €€€ (€1,89 o-ring collection from Karwei, Dutch DIY store).

Leak fixed, no short circuit, no parts left over. An afternoon well spent. Now for some coffee!