Krups 874 the espresso flow?

I have a Krups 874, the espresso flow has suddenly reduced to a slow drip I have descaled it to no avail. when I use it and loosen the strainer handle mid way through the process it hisses so there must be some pressure there. Has anyone some ideas? other than that it's a brilliant product
Roger Mancini, March 2008


done
I have the same issue and for ages I've been stumped. I think now it is the coffee holder which is blocked. My machine came with 2. One is for 2 cups and one for 1 cup. The 1 cup one is fine but hasn't been used much and if you hold it up to the light the holes are all clear. The 2 cup one is awful and when held up to the light many of the holes are blocked.

Matthew Roberts, July 2008
check the filter above the espresso holder. it can be removed by undoing the retaining screw. Might be scaled up. Check flow now with it removed.

m parsons, April 2008
link Click here to see other fixes for Krups 874.