I have never de-scaled it. In the 4 years I have owned it, the "calcified" notice has never come up on screen. As it prompts us to change the water filter, and to run the cleaning cycle, I assumed it would also prompt us to run the descaling process.
Not sure what you mean by tubes? It is not plugged in to mains water. No tubes. Has a small rectangular tank to fill on the back. Water is coming out of where the two small spouts that usually spit out the coffee join the machine. Instead of coming out of the end of the spouts, that is.
Unit is 4 years old.
Hope that helps!
I haven't heard anything back since my response to your initial response.
I double checked the manual for the machine, and the section on descaling the appliance does advise descaling, "when the "calcified" notification shows on the display". Despite this not showing, I ran the descaling process, and found no change in the problem. Even during the de-scaling process, water could come out of the hot water/frothing/steamer nozzle, but not out of the espresso nozzles. All water that should have come through the espresso nozzles ended up in the drip trays.
Once the process was finished, I attempted an espresso again, and the same thing is happening - espresso comes out from round the nozzles, rather than out the end of them. A needle in the end of the nozzles runs into no blockage though...
Examining the unit, it would seem there is no way for me to open it up, without proprietary screwdrivers... is there anything else i can do short of calling a Neff service person?
Regards ***** *****