Coffee machine DeLonghi ECAM 22.110 - weak coffee in the option of a large cup

Hello,

2 months ago I bought a DeLonghi ECAM 22.110 machine. I had no complaints, everything seems to be working fine, but I noticed that when choosing coffee in a large cup, the coffee is just terribly weak. Heavily diluted. What could be the reason for this? The standard settings include a small cup for 40ml of coffee and a large cup for 120ml. To have normal coffee I have to press the button of two small cups into one cup. Everything is ok in this case.

However, when I choose the option of a large coffee or two large coffee, even the color of the coffee is more like tea, it does not smell like coffee and is just weak. Should I advertise the coffee machine, is there anything I can do? Could it be coffee? I don't know what I had before, now I have 5/10.
Well, as I mentioned before, with a small cup there is no problem, the coffee is very good.
The problem only arises when you turn on the long coffee option. Will you help?
Thank you in advance
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Photo of coffee lozenges after good coffee and bad coffee, please

Hi, I'll dig out the topic. The coffee started to weaken overnight. It is very average at the maximum. Recently, I was setting up a new coffee machine, the coffee grounds had the shape of discs, for me it looks like the attachment. Coffee machine under warranty.

In my opinion, the maintenance of the brew group bows.
Disassemble, wash and lubricate. It should be positioned correctly within 10 coffees after the treatment.

I had exactly the same problem, the coffee was falling out everywhere but into the container. The guilty party turned out to be a dirty piston that did not run smoothly as it should. I disassembled the brewing unit and the plunger with a strainer and cleaned everything thoroughly.
Check the seals, replace if necessary and lubricate with food grease.

Simple coffee on the sides of the infuser scattered
Even new and lubricated ones will not get dirty
The seals should be replaced every two years
Lubricate as it starts to work harder
What to lubricate, Vaseline
best regards

Added after 11 [minutes]:

And that one is sprinkled like coffee, and here are discs
reduce grinding grain, lubricate the brewing unit, check the strainer
Thermoblock looks dry inside

It's not esam, so lubrication doesn't help much here. If someone regulated the grinder, the machine could remember a different setting. You have to give the maximum taste and squeeze a large coffee, observe the discs and the grinding time of the grinder. Whether it lengthens or not. And the scattering can indicate broken regulators in the casing of the coffee machine.

Can you elaborate on these broken regulators in the housing? I have 23,450 ecama and the discs are also falling apart. Today I was wrong and lubricated, but it's too late for coffee. I am also not sure about the adjustment of the grinder. How is it going to be?

When you open the door in the construction you will see two such movable plastics called a regulator. On the left and on the right, just at the edge of the hole that closes the door.

Misiek85 wrote:

It's not esam, so lubrication doesn't help much here. If someone was regulating the grinder, the machine could remember a different setting. You have to give the maximum taste and squeeze a large coffee, observe the discs and the grinding time of the grinder. Whether it lengthens or not. And the scattering can indicate broken regulators in the casing of the coffee machine.

I have the same, coffee "big cup" weak. The 5s grinding time of the grinder is set to the maximum coffee strength, similar to the min. The coffee rings fall apart in the coffee grounds container.
Can someone help
The coffee machine has already been serviced twice, the first time they replaced the top microswitch and it worked
After the second complaint, the Krakow website returned with a note that the equipment was operational. But Lura coffee and power regulation, it's hard to notice that it changes anything.
Someone can help?

Misiek85 wrote:

You need to give max flavor and press a large coffee, watch the disks and grinder grinding time. Does it get longer or not.

And if it doesn't get longer, what could be the cause?
.

Try the encoder reset procedure.
1. Press and hold the ON/STAND-BY and 1 ESPRESSO buttons, set the main switch on the back of the unit to the I position.
2. To complete the procedure, turn on the unit and then perform a "wash/heat" cycle; then turn off the unit by pressing the ON/STAND-BY button and unplug the unit.

@rostex after this procedure, the grinder works even shorter, i.e. less than 3 seconds. The only way that works is to force the error with too much coffee. Unfortunately, after this error, only 1 or 2 subsequent coffees are prepared correctly, i.e. the grinder operates for 6 seconds at maximum coffee strength. Then everything returns to its previous state.