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

Hello and welcome,

after the warranty expired, problems with my Delonghi Ecam 23.450 machine started, namely the error "ground coffee too fine, install the water spout" pops up. They probably replaced all the parts and it always worked for them and the same thing for me at home - embarrassment. Recently he was also under repair, the guy checked the motherboard and it was ok, but for 2 weeks he was not able to diagnose what was wrong with him - Czech film. He has been to the Delonghi service 4 times, they have probably replaced all the parts and there are still problems with it, they say that it works for them and I still have problems. Mianowice does not make 2 coffees at once, does not make cappuccinos. The mistake is too finely ground coffee, install the water nozzle, it will make normal coffee again for some time, but not in 2.3 times and it displays the same error> is it something with a flow meter or a coffee grinder rotation sensor, as I read on the forums. I am asking for help, because I am getting to the head ...
thank you

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.

Solenoid valves for replacement. Or rocky and restricted water flow.

For me, the problem was the same. I tied it by thoroughly cleaning the strainer of the coffee maker, plus descaling the entire machine. It helped.
After a while, another problem emerged. Description "wrong position of the coffee maker". I don't know what is the cause of this malfunction. It works once, especially when launched. I'll make a few coffees and the flap. You have to give it time to cool down and it works again .... What could be the reason?

Perform pcb reset.

Pcb reset? How to do it?

1-coffee maker in the network
2-switch to 0
3-Simultaneously click and hold the "power and P" key
4- turn the switch on 1
5 led "esc and ok" lights up
6-release the "power and P" keys
7- turn it off and on again.

Hello, I have a De Longhi Perfecta ESAM 5708-S machine, it is almost new for 2 months (no guarantee) - used and maintained in accordance with the instructions. I get a message - an error pops up "ground coffee too finely, install the water nozzle", I do it, it rinses The coffee grind was set to 6.5, which is almost the coarsest. The machine was descaled several times in a row (with the recommended De Longhi liquid). He then made a few coffees correctly, but then he displayed the same message again. Let me add that I only pour him filtered water from the bottles, not tap water. Adjusting the grinder does not help. What is the problem?
I would like to add that we looked at the flow meter - clean water flies, the propeller turns smoothly.
For the test, I put the infuser-infuser unit into the coffee machine of a friend who has the same coffee machine and does it on my infuser.Unfortunately, I do not know it well enough and I was also a bit ashamed to borrow the brewer from him.
After he made a few coffees for him, he made 4 coffees for me and again the message too fine ground appeared ...
I will add that the coffee grounds are not in the form of dry discs, as it should be only mud with water

Hello, probably the valve assembly or the pressure valve it is called will be replaced. There is still a pump or solenoid valves. Why is it without warranty?

someone bought abroad bought 100 and sold it without guarantee
I also remembered that when this defect occurs, the machine heats up 3.4 times, which was not there before, i.e. I press the coffee, he warms up and returns to the standard screen I am again coffee on the same, and so only 3 times after I press the coffee they had tries to huddle and pops too ...
The pump seems to run hot water, it heats and flies, it also rinses, when I do descaling it also flies

Added after 9 [minutes]:

Dean 85
I understand the valve assembly, but what did you mean by or pressure? - pressure valve?

The pressure unit or the valve unit writes differently. And check the fuses on the steam heater, such ceramic cubes with connectors.

andrzej49 wrote:

someone bought abroad bought 100 items and sold without guarantee ... Added after 9 [minutes]:

probably that someone bought the 100 as B-Wre or even worse C-Ware.

If there is such "crazy" then the electronics is suspect, ie the whole uC board.
It would be best to replace it and see it. In this way, we would or would soon rule out
or they confirmed the electronics defect. Otherwise, it is "jumping".

Electronics, control and processor are paired. In the ECAM 23.450 model, there are several different electronics that seem to be the same. When ordering electronics, you need to enter the deLonghi code, otherwise it may not match. The specific model of the coffee machine identifies the number from the bar code behind the water tank .

It is quite possible that it is as you say, electronics are not low cost ... I wonder if it makes sense to repair.
I rinsed him 2 times with descaler, with this descaler I made 4 coffees, rinsing with descaler and for now makes coffee, but the pump presses strangely, presses once and only after the second press, after such a sound as if a valve was released, or something was pushed through - coffee was flying .Something's not right.

The 1st time is pre-brewing, so it's ok. What's the position of the grinder? Is there a softening filter for water in the tank? Do you have water in your grounds for coffee grounds?

grinder 6.5, no filter, it is filterless - there is such a small black something 3 by 2 cm in the tank, but there is no access to it, it is inaccessible, covered with plastic, the mud from the coffee grounds container is gone but the grounds are not completely dry, they do not form the discs are only wet disintegrating

Approx. Exactly because you have a grinder in the wrong position. Give it to 4. And make a few coffees. But I bet on solenoid valves or the pressure unit

zby_121 wrote:

... the error "ground coffee too fine, fit the water spout" pops up. I am asking for help, because I am getting to the head ...
thank you

hi,

that's what it occurred to me ... it could be a problem with the coffee block (brewer).

my brewer works in a friend's coffee machine, it was replaced, as long as the coffee block and the brewing unit are the same

Give me 4 numbers from the solenoid valves.

The discs, rather not the discs, because they are damp and loose, but the grinder has just been changed to 4.5 in accordance with Misiek85's recommendations, because so far it was 6.5 and this is the reason that the coffee grounds are not dry discs

andrzej49 wrote:

my brewer works in a friend's coffee machine, it was replaced, as long as the coffee block and the brewing unit are the same

in that case solenoid valves - wrote about them @ Misiek85.
I think they did not do it on the website (they did not mention it).
This is some problem (it seems) at the factory level.
Something DeLonghi messed up here in the design of the device.
They can be stony. As in Saeco, decont-
changing often does not bring improvement.

Added after 24 [minutes]:

andrzej49 wrote:

The discs, rather not the discs, because they are damp and loose, but the grinder has just been changed to 4.5 in accordance with Misiek85's recommendations, because so far it was 6.5 and this is the reason that the coffee grounds are not dry discs

it is not just a matter of granularity - the problem is deeper - debated.

Hi. The same problem appeared on the Delonghi ESAM 5500 (Delonghi Perfecta).
After the last service / maintenance, the coffee machine was unused for a long time, and since then it has made a dozen or so coffees.

Symptoms :
1. Error / Message appears immediately after the first rinsing "Rinsing" when turning on the machine in the heating process, after pouring 20ml of water, it interrupts "the message" Heating Up "appears followed by the error
(even before the machine starts brewing the first espresso)

2. It is normally removed by rinsing with a water jet (OK) when the machine heats up about 40ml of water.

3. The error returns every time - both with:

a) Water heating - after about 10 seconds and heating 40ml of water, brewing stops with the message "Heating Up Please Wait"
then he tries to continue for a while but immediately interrupts the above-mentioned error. The stream of water is initially a steam blast, then jerky /
"thin" (When interrupting "Heating Please Wait", you hear a hiss / gurgling sound / as if water is boiling)

b) Espresso brewing - after brewing coffee for 20 seconds / always after brewing about 80ml of espresso

c) Descaling - the machine starts the procedure and is able to pour out 220 ml of water,
then terminates the procedure and ends by default - the message Rinsing> OK> Rinsing Complete> Confirm)
the rinsing step "Rinsing" again only 40 ml of water and throws the above-mentioned error.

Something is clearly wrong with the water supply and heating system?

Write to me on priv. Maybe something to help.

Hello
The topic is old, so I don't know if anyone else is reading it. I have the same problem. The ground coffee is too fine ..... I have already replaced the control board, valves, pump, brewer and flow sensor. I will have a whole new coffee machine soon! And the problem remained .... Any hints?

What valves? Maybe there was still a valve assembly, this piston at the top in the coffee machine?

Regarding VEN 83, you have two faults
1. Most likely the heater is double and one of them is probably burned out.
2-Wrong flow of water is calcified.

ssss wrote:

Regarding VEN 83, you have two faults
1. Most likely the heater is double and one of them is probably burned out.
2-Wrong water flow calcified.

Probably not in this model. A colleague needs to learn. The doubles were in the old e-mails and there are no doubles in the store. There is a toroid and a horseshoe.

So you have to study and read Ven83's post

Solenoid valves are not the problem. Both replaced with new operational ones. These two are visible after removing the cover on the left. Interestingly, coffee brewed immediately after starting it is always hassle-free. As if the problem with the water flow = ground coffee too finely ... was directly related to the increase in temperature of some element. Thermoblock piston, flow heater or boiler? One of these elements causes a pressure drop and, consequently, no hot water is delivered to the brewing unit.