Fill water circuit

Hello, I own a Primadonna Avant. There is now an increasing number of errors on water circuit fill. If I confirm this however with OK, the pump pumps against a resistance.

Most of the time, it's like this. The first cup of coffee runs without problems. If I want another coffee after 30 minutes the machine grinds but while the pump is running no water comes out. I already suspected that one valve does not open and the pump works against a closed valve but in test mode both valves can be activated, i.e. they click. When the machine cools down for about 1 hour it is usually possible to use it again.

What could that be? Of course, it is often decalcified.



Thanks a lot Stefan

Open, mark the solenoid valves on the lower body, then take a picture as a marker, then remove, dismantle, clean and reassemble.
There is a pin in the middle of the tube, which must move freely.

Hello, Stefan,

almost the same thing happened to me with my 6750, my journey is not finished yet but if it helps, HERE are my experiences.

First I guess you need a new pump too. Costs about 18EUR without shipping. My pump still worked, but obviously not properly ... I read about it once, they can get weak. I can hardly imagine how, but since my new pump I do not have this problem anymore.

Good luck, and please write down your solution/experience here, even if you are not worried about it, because this is the only way others can learn from it.

The HERE should be a link, that somehow didn't work so: https://www.kaffeevollautomaten.org/forums/index.php?showtopic=51087&hl=wasserkreislauf