DeLonghi Magnifica S ECAM 22.110.SB - flashing descaling diode

I have a problem with my DeLonghi Magnifica S coffee machine.
Namely, the indicator light flashes, which informs about the need to descale the device.
Despite cleaning several times according to the instructions, the control does not disappear.
Anyone have an idea what it's about?

The lack of water sensor in the tank often fails (not the limit switch of the removed tank). Without it, it will do the last stage of descaling (no signal about the consumption of the entire solution tank).

sigwa18 wrote:

The lack of water sensor in the tank often fails (not the limit switch of the removed tank)

I have the same express. OK for now, but in the meantime I'll ask:
Where to look for this sensor?
Something more about him? Please.

The sensor is in the espresso machine itself, under the container there is a reed switch or a two-wire hall sensor, and in the container specifically its float is a magnet as it falls, it approaches the sensor and causes it to work. Damage to this sensor means that the machine does not see the lack of water in the tank and thus will make coffee despite the lack of water and will not complete the descaling process because for its completion it is required that the liquid solution goes down to zero, i.e. detecting the lack of liquid otherwise over and over again pours the liquid and does not end the descaling program. I tried to replace the sensor itself, only the set of the tank plus the sensor gives results, possibly replacing the magnet in the float or adding a small neodymium one from the bottom. The tank plus the sensor is about PLN 150.

Or maybe not enough water added to the tank. New espresso machine or several years old? Is the descaling process 1st stage pouring in portions complete? Shows no water?

I'm joining this thread because I have the same problem. Express for several years. The sensor under the tank does not react during descaling, even when removed, it is attached to the magnet. During normal operation, it does not detect the magnet in the tank, but when applied directly, it sees. Is it a sensor replacement??

Well, I'm not sure. Neodymium magnets also lose strength with age.

For me, the problem was solved by replacing the tank with the magnet (non-detachable element). It turned out that the magnet lost its power.

Reservoir or item 47 to be replaced

Hello, I have the same problem. DeLonghi 22.110.W. I don't want to finish descaling. I checked with a meter and the sensor reacts to the water tank, just like to another tank or a magnet. I replaced the tank and still the same. Where else can you look for the cause?

So you only need to replace the sensor once you have replaced the water tank

In fact, I replaced the water sensor and it works, although the other one was supposedly functional. You can see that it no longer gave such an accurate signal. It helped, thanks.