i personally have all my machines at 125,
have you tried 123 and a two hole tip,
its a very weird fault
Decent De1pro v1.45 - Niche Duo - Niche Zero - Decent is the best machine ever made -
Vesuvius Pressure Profiling Machine - General Discussion
i have a bianca
Decent De1pro v1.45 - Niche Duo - Niche Zero - Decent is the best machine ever made -
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AJuar DavecUK I have made the two tests, and in both cases the machine tends to fail in a potential failure condition (not always). Also, in one case out of 20 approximately, with the boiler priority, the machine has showed very different pressure behaviour even with the steam boiler off, from cold. I have the video of this but I’m not going to upload because I know that you trust me. This should be an evidence of a capricious mechanical little valve stuck? I don’t know.
You have ruled out software as the issue then because if it was a software bug it would fail every time.
I cannot understand how a valve or plumbing would have this effect. You tried with HX off and on which includes or eliminates the 2 halves of the brew circuit, and noticed the same behaviour. This means those sections of the brew circuit cannot be at fault?
Logically this leads to the fault being outside the sealed brew circuit (or at either end of it)…but it doesn’t make sense on how this could have the effects you are observing?
- If it’s the pump end, there is always "push from the pump and I can’t see how an intermittently leaky 1 way valve would have this effect
- A leaky autofill valve would drop the pressure but you would see the service boiler overfilling over time (you should check this). Even so, I don’t see how a leak could cause a pressure peak, unless it’s chattering (leaking on/off/on/off), possibly that might affect the PIDs ability to control the pump. Even so if it was leaking why only when the steam boiler is on…perhaps it’s warming up and then the defect is showing? It might be the reason why the fault doesn’t present itself until the service boiler has been on a while?
So check whether the boiler is overfilling and if it is it might be the autofill valve…?
My confusion about the autofill valve is 4 machines, all done it from new, all with faulty autofill valves that cause PID issues in a particular way when the service boiler is on…..doesn’t sound very probable does it. Especially as I am only guessing on something having this effect.
If I’m honest I don’t know, it doesn’t make sense and I couldn’t reproduce it, which means I couldn’t find the cause?
DavecUK Thanks! It sounds viable. This morning I have purged the water of the steam wand and the first time 17-18 g of water come out before the steam. Is this normal? Is there another way to check the service boiler level? Where is the autofill valve placed? Could I buy another valve and replace it or it’s an electrical problem? Please, send me the diagram of the Vesuvius or the code of the autofill valve, in order to buy another if it is necessary. Also, the chattering that you mention is an electrical issue, then I’m really not capable of checking electrical issues.
Please let me know. Is it possible to check these things in the factory with the @kautivo coffee machine?
Thank you very much
The autofill valve of my Vesuvius, the one placed in the big brass piece under the group, was replaced when the machine was serviced. All this big part was replaced but the pressure sensor. Despite this the one way valve returned water from the brew boiler to the water tank after replacing it. Fortunately, a few weeks later, it started to work properly, no more water escaping to the tank. Unfortunately, the pressure behaviour we are talking about was never gone.
If the service boiler was overfilled, you wouldn’t have proper steam, just a lot of water if I’m right ¿?
I think we’d have to focus on the first stage of the profile, it’s during the preinfussion where the machine has trouble, this small stop around the 1,5 bars mark. Overshooting is just a consequence of this. As @AlJuar points, the fail is more prone to occur when the machine has been idle, cold, for a long time. It seems to be worst when weather is cold. That’s why I thing it’s a mechanical issue. But yes… it’s very very difficult to solve this far from a machine.
AJuar if the water was due to overfilling you wouldn’t have steam afterwards surely?
Just condensate in the pipelines?
Ade Smith. ACS Evo Leva v2. Kafatek Flat max 2, ssw 2024. Mazzer Philos, Craig Lyn HG-1 prime., WW key mk1.
Is there a similar scheme of internal components (like this for my old Rocket) for Vesuvius?
Is it normal behavior that Vesuvius drains water like this during backflushing or brewing shot?
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Spid3r00 maybe you could share what pressure you’re running at whilst it’s doing this
Ade Smith. ACS Evo Leva v2. Kafatek Flat max 2, ssw 2024. Mazzer Philos, Craig Lyn HG-1 prime., WW key mk1.
Adrianmsmith pressure was visible shortly on video, and it was on 13bar and going down, during my backflush profile.
Same happened and I brew coffee with 9-10 bar.
Spid3r00 ok
Ade Smith. ACS Evo Leva v2. Kafatek Flat max 2, ssw 2024. Mazzer Philos, Craig Lyn HG-1 prime., WW key mk1.
Adrianmsmith You think this is normal behavior?
At 13 bar that would be expected (normal), the vent valve on E61 machines starts to let by at about 12-13 bar.
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What is Vesuvius maximum power consumption during start up (warm up)?
I have connected my Vesuvius to an remote power switch (Eve Energy), during scheduled warm up in the morning many times power switch turns off power. Max power allowed on Eve is 2500W, i checked this morning on EVE-app that consumption during first minutes of warm up is very close to 2500W, it must be that EVE power switch turns off as programmed (I guess).
