Everything seems to work fine except for the steam.

It will produce hot water out of the water spout and will also do a full descale.

But when I choose the steam function or put the milk canister on it makes a funny noise like it has a blockage because when I stop it some steam comes out the back of the machine. I have always done the descales and changed O- rings when needed. Greased up the enfuser when was getting stuck, that fixed that. Put rubber grommet in suction straw on the milk canister that has a smaller hole in it to slowdown the milk feed so that it heats up more, got this from delonghi. Hot cuppachino now.

What do you think is the problem. Could it be the solenoid doing this.

The machine has a external push on water and steam spout.

This is the machine.

Also a milk jug.

⟐ Answered 4월 19, 2026 at 13:23 GMT-7

⟐ Answered 4월 18, 2026 at 11:04 GMT-7

This night I disassembled the machine until I could slide the inner parts out, powered -> only pump sounds, disconnected the flowmeter, powered -> suction on the pipe! I've opened the flowmeter, it's clean. Reconnected flowmeter, suction. Because there was no longer any fault I assembled the machine, powered -> no water. Then I switched to steam and this worked (unfortunately I didn't try this before disassembling). And afterwards even the portal filter got water.

So ... even in case the EC680 will brew next morning ... what was the fault / which parts should I replace when I get the fault again? I've seen the disassembling video and perhaps that small ball got stuck in the housing? The higher pressure of the steam setting got it loose? Any other idea?

Best regards, Vitus

Hi all,

I've recently picked up my dedica EC680 and it's making great coffee, but anything relating to steam or water doesn't work properly.

Espresso works great but whenever I turn the tap all the way to the steam\water mode, instead of hot water running from the tap, water drips until full stop after a few seconds. After the water stops, some steam comes out, and then the buttons start to flicker 3 times.

There are some pulses that seem to come from the white valve (I've attached a video) and it seems like something is stuck. Steam doesn't last more than a few seconds either. ⏎
If I turn the tap not all the way, and then press one of the espresso buttons, then water flows more freely, although only for the duration of an espresso shot.

I've tried descaling, and it was a nightmare. Basically the descaling plan got stuck just like normal water flow, and I had to manually pull and pour the descaling solution by pressing the buttons and pulling the lever over the course of a few hours, and that didn't help.

I've opened to top part to see how the silicone pipes look and they're as clean as a whistle, not a drop of scaling.

Anyway, I'd love to repair it but I don't know where to start. The screws on the bottom are of an unknown shape, and I don't want to do any more damage, but repairing it is gonna cost a lot...

I'd appreciate any help, thanks !

⟐ Edited by author 1월 16, 2026 at 16:17 GMT-7

⟐ Commented 1월 07, 2026 at 15:43 GMT-7

⟐ Answered 12월 29, 2025 at 21:12 GMT-7

Trying to find instructions on replacing the spout nozzle dispenser

⟐ Edited by author 12월 19, 2025 at 21:06 GMT-7

I am digitally savvy (I work it), but not much experience with opening up such things. Is there anyone who has a good source for opening/fixing a grinder. I expect something is stuck in there

We were given the machine by family who no longer used it, I've descaled and it's been working fine for months until earlier, I made a coffee and when frothing milk it simply just stopped mid-steam, no errors or anything, just the hot water button switched on all other lights went out. I topped up the water just in case, turned it off and on, and lights blink like normal but then only the hot water light turns on. Previously I've seen that happen when e.g. beans are too finely ground and water builds up and needs releasing, but a) nothing backed up this time (extracted 36ml of decaf in 32 seconds, flow and pressure seemed normal), and it only stopped working mid-steam.

When pressing the hot water button, it flashes and makes some repetitive "tick - clack" noise, like it tries to draw water but cant, and keeps doing that but no water coming out, then all lights flash a few times as if I've just turned it on and it's back to just the hot water light being on.

I just descaled the machine about 2 weeks ago (when descale sign turned on) and use it daily for 1-3 coffees.

Any ideas or advice? The steam or coffee OK buttons also don't do anything, I've tried wiggling back and forth to release any air blocked up in the piping to no avail.

Any suggestions appreciated!!

⟐ Edited by author 11월 28, 2025 at 2:48 GMT-7

⟐ Commented 10월 17, 2025 at 21:01 GMT-7

⟐ Commented 10월 14, 2025 at 14:12 GMT-7

⟐ Answered 10월 12, 2025 at 1:40 GMT-7

I'm troubleshooting my DeLonghi La Specialista Arte (EC9155MB). Originally, the machine couldn't produce steam from the milk frother, but coffee worked fine from the group head.

I replaced the Solenoid Assembly (AS00003110), and now it's the opposite:

Steam works perfectly, but no water goes to the group head - instead, all water goes through the discharge hose into the drip tray.

If I reinstall the old EV3 (right-hand solenoid, closed top, in the attached picture), the group head works again, but steam fails. So the issue seems isolated to EV3.

I suspect the new EV3 has reversed NO/NC internal routing, so it energizes the discharge path instead of the brew path.

Has anyone run into this with DeLonghi dual solenoid assemblies? Is there a part number that specifically matches the "brew" version of the EV3 valve?

Any insights, internal diagrams, or sourcing tips would be super helpful.

Thanks!

Alireza

⟐ Commented 10월 10, 2025 at 12:52 GMT-7

⟐ Commented 9월 24, 2025 at 14:27 GMT-7

⟐ Answered 9월 23, 2025 at 23:41 GMT-7