DeLonghi ECAM-serie Vervangen of reviseren van de flowmeter

Geschreven door: VauWeh

Reacties: 34

DeLonghi ECAM-serie Vervangen of reviseren van de flowmeter

Moeilijkheid

Gemiddeld

Stappen

Tijd vereist

Geen schatting

Inleiding

Let op: verwijder altijd eerst de stekker uit het stopcontact voordat je gaat demonteren.

De flowmeter meet hoeveel vers water er in de koffiemachine wordt gepompt. Er kunnen verschillende storingen optreden. Als de sensor zelf defect is, moet het onderdeel worden vervangen. Vaak is de meter gewoon verstopt of verkalkt, vooral bij het inlaatmondstuk. In dit geval is een grondige reiniging voldoende om het apparaat weer goed te laten functioneren.

Gereedschap

TR15 Torx Security Screwdriver

Stap 1

Haal de stekker uit het stopcontact!
Verwijder alle losse delen zoals het waterreservoir, de opvangbak en de zetgroep.
Draai de machine zo dat de achterkant naar je toe wijst.
Verwijder de vijf T20 Torx Security-schroeven.
Eén klein obstakel: deze schroeven hebben een pin in het midden, dus de torxschroevendraaier moet een gat hebben (dit zijn de Torx Security-bitjes).

Screwdriver must have a hole? What does that mean? Is it a standard Tx20 bit?

Kevin -

No, it is a TR20 Security Bit, which really has a hole (if you look to the star shape) . See TR10 Torx Security Screwdriver

VauWeh -

Bits from iFixit are equipped with it.

VauWeh -

Stap 2

Til het achterste paneel van het koffiezetapparaat af.
De volgende onderdelen zijn meteen zichtbaar:
Koffiemolen
De pomp
De stromingsmeter

Sehr gute Anleitung. Die Security Schrauben der Rückwand können auch durch normale Kreuzschlitzschrauben ersetzt werden. Natürlich mit gleichen Abmessungen. Es erleichtert bei späteren Reparatur Arbeiten die Werkzeuge Auswahl , da überall Kreuzschlitzschrauben verbaut sind.

Willi Greubel - 25/05/21

Stap 3

De flowmeter bevindt zich aan de achterkant van de machine.
Maak eerst de bovenste siliconenslang los.
Haal de flowmeter via de achterkant uit het apparaat. Let op: mogelijk zit er een vergrendeling voor de meter. Indien dit het geval is, dien je de flowmeter eerst iets op te tillen.
Indien je de meter niet vervangt, kun je de kabelstekker vast laten zitten.

Stap 4

Draai de deksel van de flowmeter los door deze een klein stukje tegen de klok in te draaien.
Til het deksel eraf en let hierbij op de afdichtingring in het deksel. Het turbinewieltje is nu zichtbaar.
Verwijder ook de slang aan de onderzijde van de flowmeter.
Blaas in de inlaat en controleer of het turbinewieltje snel draait. Indien deze verstopt is moet je het kanaaltje open prikken met een naald.

This worked machine up and working now thank you

Sandra Humphrey -

Conclusie

Voer de stappen in omgekeerde volgorde uit om het apparaat weer in elkaar te zetten.

Auteur

VauWeh

Lid sinds: 19/10/15

268312 Reputatie

29 commentaren

Herzlichen Dank für die übersichtliche Anleitung! Der Tipp mit dem verstopften Flowmeter aus einem Forum und dazu diese Anleitung haben mir heute sehr geholfen. Meine DeLonghi Dinamica läuft wieder. :D Selbst ist die Frau.

Beste Grüße

Christine

info -

Fantastisch!!! Toller Job Christine! @VauWeh erstellt die besten Ratgeber für alles, was mit Kaffeemaschinen zu tun hat!

Fantastic!!! Great Job Christine! @VauWeh creates the best guides for anything Coffeemaker related!

oldturkey03 -

Ich freue mich!

VauWeh -

Hi,

kurz vor Weihnachten streikte unsere " PrimaDonna Class ". Ein Gau für jeden Kaffeetrinker. Schnell über Online - Shops zwei Ersatzteile besorgt. Doch sie streikte immer noch. Dann die Wasserzuleitungsschläuche gereinigt. Nein, es gab immer noch keinen frischen Morgenkaffee aus dem heimischen Automaten. Dann ging ich exakt nach Deiner Anleitung vor. Yes! Sie funktioniert wieder.

Vielen Dank für die hilfreichen Tipps und ein schönes Weihnachtsfest.

Jürgen aus Eching b. München

j. lobster -

Sehr schön, hoch die Tassen!

VauWeh -

Hi,

Similar problem descale process fails to complete and also water tank when empty does not provide alarm message. I have checked the flow meter which was clean with no signs of blockage or calcification and spins freely. This leads me to think it may be the sensor beneath the water tank tray or perhaps the magnetic float inside the water tank. However not sure which one to tackle first, the sensor would be easy to change as I have traced the wires back to the PCB however not sure how to get access to the magnetic float as it is encapsulated in a plastic housing.

Please advise if you know the answer.

Regards

GordonB -

@gordonshirreffs I would first try the water tank. Does the magnet float freely? Do you know anyone with a similar machine who could swap the water tank on a trial basis? The sensor (Reed) inside can be cheated using a magnet. The watertank is not too expensive, If you want to replace it, including a new magnet. Here are both parts, be sure you have the right model number: watertank and sensor.

VauWeh -

Thanks VauWeh,

Will try the the magnet as a cheat to see what happens.

GordonB -

OK, dass Teil war es wohl nicht, was ich wohl schon dachte. Da bei mir das Problem ist, dass der Sensor nicht mehr richtig funktionierte. Dafür brauche ich wohl einen neuen Reed Sensor. Den ich dank deiner Anleitung aber jetzt auch gut finden konnte (bzw. wusste schon das der unter dem Wassertank ist, nur nicht wie man am besten da hinkommt).

Sauber gemacht habe ich es dennoch, den Schlauch. Meine Güte kam da Grütze mit raus... Geschadet hat es nicht. Bei mir hat da gut der Trinkschlauchreiniger geholfen, dieser Schrubber passt auch gut in die Schläuche. 👌

Javen -

Thanks everyone, got myself a new reed switch and successfully completed 1) detecting empty water tank and 2) completed the descale process and checked that it recorded a completed descale cycle.

Much appreciated regards Gordon

GordonB -

I'm always pleased when a repair is successful. Congratulations!

VauWeh -

Since successfully replacing the "read switch" another issue may become a problem, I have set up the machine to dispense a mug of coffee (half pint approx.) using the My Coffee programme however after getting the settings correct I now find that I am getting less and less quantity and have to top up with the hot water spout.

The machine has been descaled on a regular basis as per instruction for a hard water area and the water tank is always filled with filtered water.

I think that it might be the flow meter however when I replaced the "read switch" the flow meter was working and the wheel spins freely.

Have you any other suggestions as to the cause?

Thanks Gordon

GordonB -

@gordonshirreffs Another issue may be a clogged upper piston.

VauWeh -

Hi Gordon, if the machine gives too little water/coffee it could be that the pump is no longer working properly. But there could be several causes, it could also be the boiler for example (limescale). You can start by checking the strainers of the brewing unit to see if they are open properly.

Martin

Martin -

Hi Martin, "strainers" are these the 2 multi holed discs either end of the brewing unit?

regards G

GordonB -

That is correct there is 1 in the brewing unit and there is 1 in the upper brewing unit

Martin -

Hi Martin, both upper & lower parts of the brewing unit have had all the o-rings replaced and when dispensing less water in the grout box, however another issue has emerged. Lack of water from the independent water spout. Functions from the coffee spouts work ok, delivers coffee, rinsing on starting and shut down ok. When I select hot water the pump is working but the water ends up in the grout box.

When I dismantled the upper brewing unit and reassembled all correct connections were made.

I cannot see any other loose wires or disconnected/leaking water tubes, so at a loss to identify the fault.

Regards G

GordonB -

Hello Gordon,

You might want to check if the solenoid valve is working properly.

Have a look at this manual.

Martin -

Hi Martin,

Thanks is the solenoid valve the one pictured in the guide, bottom left of the machine step 5 picture ,

Regards G

GordonB -

Hallo Gordon, yes that is the right valve.

Martin -

Hi Martin, just checked the lower solenoid which feeds the upper steam generator; took it apart and it is completely clean with no scaling or blockages, moves freely and it appears to work as I verified that by utilising the cappuccino function and that worked, what did not, was the final part of that process where the system flushes the frother mechanism to clean it; instead hot water was pumped into the grout box.

I suspect that the next item to check is the upper solenoid which sits at the top of the machine just above the steam generator/boiler to check if it has become calcified, other than that I am at a loss.

Regards G

GordonB -

@gordonshirreffs Think of using the testmode.

VauWeh -

Hi VauWeh, is there a test mode for ECAM Cappuccino 44.660.B

GordonB -

Oh oh, this is top secret...

This is from a 45.366, perhaps it works: Switch off the machine at the front, pull out the drawer, press and hold B15(coffee quantity) + B11(single cup) + B6(Milk Menu) simultaneously until Select Test appears. Then insert the drawer and press Cappuccino. The test mode is now active.

VauWeh -

that configuration did not work

GordonB -

Well without the fault codes I have managed to get the supply to the hot water spout working again. It would appear that when I dismantled the upper brewing unit to replace all the o-rings and then reassemble I fitted a small component in reverse, this component is the small dark grey/ black in colour which slides in its housing in the external section of the brewing unit, oblong with rounded ends in shape with 3 holes the centre one holds a screw that attaches through to the orange colour housing of the brew unit and allows it to move when a drink is being processed. Its a pity the Delonghi schematic does not show this small plastic component, but I hope I have described it reasonably accurately.

GordonB -

Link to item I mentioned above, shown 2 min 20 secs into video

GordonB -

Good to hear! I mentioned it in the guide for the upper piston: Note the valve: the plunger points upwards.

VauWeh -

Tipp mit dem Flowmeter und der Anleitung haben mir echt geholfen! Vielen Dank.

fritz rathe -