Delonghi Ecam 23.450 - coffee ground too fine error, install the water nozzle

Do any of you already know the causes of the failure?

Feel free to fix me.

Hi. Where are you from? I have the same and no nerves.

Krakow, I invite you.

Hello
Is the topic for too fine coffee already solved?
I have a problem with this message after grinding coffee in the ECAM25.452.S
The pump does not turn on, but immediately throws the ground coffee into the grounds container. I have noticed that when there is a coffee bean end it will still make one or two coffees in the normal cycle.
Could it have to do with the grinder or the element that controls the load on the grinder?
Because when I pour more coffee, it will show an error.
Maybe someone will help?

Changing the coffee strength (amount of ground coffee) changes something?

Not changing the strength of the coffee or the grinding thickness does not help.
It will do the entire cycle only when the tip of the grains remains.

BRum wrote:

The message about too finely ground coffee indicates that there is no water flow signaling, which leads to the conclusion that the flow meter is damaged. It may hang due to contamination, I understand the water pump is working fine. I would start with a flow meter. I can help but it's on priva, I'm from the vicinity of Bielsko.

Yes, that's a good lead.
For me it was an insurmountable nightmare, at some point during the making of steam the hose broke, but it did not help either
In the end, a decent descaling helped. Most likely some detached pebble was circulating in the system.

I am coming back to the topic because I have some time, I will try to descale it a few times, it may actually be related to the lack of water flow. I will let you know if it brings a good result.

How old is the coffee machine? A very common reason is that the pump is damaged when loaded, with the coffee depressurized and practically inaudible.

I changed the pump from another machine, with no effect. But today I noticed that after replacing the flow meter, there was an error once, I turned on the rinsing and made four coffees in turn, which has not happened before. I'll see if it lasts tomorrow, additionally I will descale it a few times and try :)

Added after 57 [seconds]:

and the coffeemaker is from 2012

Unfortunately, the error returns. I think I will buy some used control module; it may help.

The module would rather not cause such symptoms, and the brewer checked? The strainer is not contaminated? When an error pops up, the pump can be heard that something is blocking it or not?

Well, this error appears in a way that is difficult to capture. Because once, when the grinder grinds the pumps, the pump will turn on slightly and then it will not even finish grinding and the error is already shining, and the next time the pump will not turn on during grinding and then it will make coffee ok. Someone wrote that during grinding the pump should turn on for a moment and maybe it does, but not always. I have already checked everything except electronics, so I'm thinking of a replacement.
Well, unless someone else has any ideas ...?

Wrong water flow

You're right, today I looked at the solenoid core and it turned out to be more complicated than I thought and more than what I have seen so far. After the valve inside the core was restored, the error was gone. So the topic is solved. Thanks anyway for the suggestions.
Regards

For me, polishing the pump piston helped; after disassembling the pump into a fine poppy, I noticed scratches on it. Screwdriver, water paper under a gentle stream of water, and the piston rod was beautifully polished. There was no need to replace any components.

BRum wrote:

The message about too finely ground coffee indicates the lack of water flow signaling, which leads to the conclusion that the flow meter is damaged. It may hang due to impurities, I understand that the water pump is working properly. I would start with the flow meter. I can help but it's on priv, I'm from the Bielsko area.

Hello. I confirm.

The message is from the cap, it appears even when the pump should not work yet.
I walked all the way to the pump.
The pump didn't have the strength to pump, so I put a new one in, but it turned out that this one also somehow strangely does not cope, although on the left supply 230v is ok. This is a problem with electronics
Total scrap. The service replaced the new brewing piston and thread. If he wants, he will make coffee and if he wants, he can turn on the steam valve, but if he wants. This is artificial and independent intelligence.

>>15634100
For me, it helped to ream the hose running from the steam generator (this horseshoe). There is a conical ring that tightens the hose when twisted. The opening was so small that the needle could barely go in. I drilled with a 2mm drill and all the problems disappeared. It would be best to replace the hose, because the tube weakens, but so far it holds.

Hi everyone, after a year of fighting the problem, I give up and post my problem on the forum. My model is EBC54524ax and I've been fighting the message "ground coffee too fine" for over a year. All the repairs so far have only helped for a while. First there was the flow meter, after replacing it, it was about 3 months. Later I cleaned the thermoblock, it was ok for about a month. In addition to not making coffee, rinsing in the grounds container does not work, wet slush collects. Until now, it helped to simply turn on the rinse several times, until something unlocked and worked for a week, two, sometimes longer. After the last time, I decided to replace the thermoblock and it was for good, i.e. I managed to unlock something by running the rinse several times, but after a maximum of 2 coffees it stopped. I decided to check if something was clogged in the system. In this way, I unhooked the thin hoses starting from the pump and started rinsing. I got to the solenoid valve at the back of the device that discharges the steam. When rinsing and disconnecting the hose in front of the valve, water flows, and when unscrewing the hose in front of the heater, the water does not flow anymore. However, I have doubts, because it is a foaming solenoid valve and is this a good clue, should the water pass through the heater when rinsing the system? In the photo, the hose is too green, from which water flows when rinsing, and the pink hose is behind the solenoid valve, where water no longer flows. I undressed this solenoid valve today, I blew it, but the coil is still ticking at the beginning.

Check the hoses if they are not clamped by conical rings - these 10 mm nuts are too tight.

As a colleague wrote above, the pump was to blame. Probably earlier repairs, removing deposits, cleaning all sorts of sieves, etc., made it lighter and worked for some time, besides, the ball that is there after time is broken and wedged. I found a description on the net of how such a pump behaves after use, if the pump pressure drops from the nominal one, etc. But to diagnose it, a special pressure gauge would be needed. Anyway, it works great now.

Let me connect. DeLonghi ECAM 23.460.S coffee maker starts the descaling process, then nothing happens and the message "too finely ground coffee fix water nozzle" appears. It also does not feed hot water from the nozzle - it pours maybe 1/10 of a cup. About frothing milk I will not mention. Black coffee brews properly.