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Crem one 2b r-lfpp


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Its a shame as there so capable, and very pretty. Well thought out machines, 

 

I could of prob kept mine but it left a major worry over longevity as this is to be my last machine purchase. 

Way too early for this sh...

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@Cuprajake Mine doesn't have a problem at all, so perhaps they changed something. It's so difficult for me to work with a big corporate, I rather gave up, they simply ran me out of time.

I don’t like – Sticks and Stones, beans that are sour, green…or rancid (horrible). Quakers hide until you roast them, then they scream out at you in the cooling tray, pick em out and flick them in the bin.. Lifes too short for bad coffee!

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34 minutes ago, Cuprajake said:

is to be my last machine purchase. 

Haven’t I said that so many times…. 😉😂👍

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Current: Lelit Elizabeth / Niche Zero / VST baskets / Distilled water + 100mg NaCO3/L

Previous: Gaggia Classic | Eureka Mignon | Rocket Cellini Evo | Profitec 700 | Profitec T-64 | Gene Cafe CBR-101 | Kinu M68 | Feldgrind 2 | La Pavoni Europiccola 2012

Also at: CoffeeTime Forum & Niche Zero Owners Group

 

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Notice i said machine not grinder 🤣

Having just bought a new lr24, if i changed it i think I'd wake up in a&e...

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Way too early for this sh...

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7 hours ago, DavecUK said:

@velezmey Read this carefully, watch my video.

It doesn't like to my post correctly, so I have reproduced it here. Below was my reply to someone else.

As for the pump noise, you only did one video, which makes it very difficult for diagnostics, but that type of pump in the Crem running full flow at 24V, does get noisy, I said so in my review. It's the nature of the pump. This get a bit technical, but It's important people understand it....and I'm talking about the software on the machine I reviewed, which has changed a little. There is the potential for user misoperation...most likely nothing wrong with the pump at all.

On service boiler autofill it's a low pressure high flow situation = mitigation pump max voltage reduced, results in slower autofill but much less noise

User misoperation, leaving the lever up without the pump running (especially with the service boiler on)  will create a brew boiler void and brief noisy pump, ruining a profile= mitigation, correct use of machine, and/or remove preheat system, or design same system as Vesuvius where preheat mechanically disconnects when the pump stops running

Explanation

Because preheat is used service boiler pressure can be 1.3 to 1.5 bar or higher, and because the actual ideal offset is so low at 7C (my findings), the brew boiler is generally at 100 ish or zero positive pressure. If the lever is left down after the pump stops running at the end of a shot, with no pressure in the system a void will immediately develop in the brew boiler. This is because some water in brew water HX preheat flashes off to steam until the pressure equalises.

When the lever is next lifted, the pump runs very, very fast to fill this void, with almost no pressure and creates that brief noise...which also fecks up a profile, because the water used in filling the void becomes part of the shot volume calculations for any profile.

It's why I always set my profiles to run on slightly beyond the volume I want in the programming. It's very, very important to lower the lever before the profile stops or you get a void as described above, and I advised Crem to put this in the instructions. So when the lever is flashing lower it with perhaps 1 second left on the profile.

Here is the same noise on my machine (which is near silent in all the videos I published). I PURPOSELY induced a void in the brew boiler by leaving the lever up without the pump running, it can also happen if you lift the lever without a profile being properly selected (see my videos, where I made that mistake). You can see my machine made the same brief noise  Jakes machine did. Then went quiet after the void was filled....once filled it of course stays filled.

 

P.S. I didn't do too much more with the Crem, I wanted to make more videos, showing profile editing etc.. and actually did do one with all the advanced settings, then they changed everything, so it wasn't really valid, took me 5 hours to make and edit it. Working with a large corporate was difficult and they basically ran me out of time. It's not like working with the owner of a company.

In the end I moved on to other projects and simply have not had the time to return to the crem machine. Over the next few months I am going to make time to revisit it and update some stuff, my review and do some profile editing, plus video the advanced settings process.

https://coffeeforums.co.uk/topic/59981-next-step-up-from-gaggia-classic-pro/?do=findComment&comment=842492

 

I've read carefully what you've written. It's happened to me to make both mistakes just like you, not to lower the lever in time and sometime again by raising the lever without selecting a profile. How do you get the pump filled or the air to go away and the way to eliminate noise?. And another mistake I made at the beginning of lowering the bars that came standard in 11 to 9 bars but instead of doing it from under the machine with the screwdriver I did it from the drip tray. 

But after reading in some post of yours I have left it again in the same position but possibly there has entered some air but by leaving it in the same position with the passage of days has improved

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Good morning, finally my supplier to whom I have told my coffee maker tells me that he has spoken to crem and that they are aware of this failure, that the pump water returns to the boiler and that they have solved it with a non-return valve. I don't know if or not because there are people in beautiful barista who returned the machine a few days ago. Because supposedly crem is aware of this failure a while ago and supposedly all the machines that have been sent in the last time 
They already come with this update or modification

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  • 4 weeks later...

I just received my crem one profiler this week.  It makes a similar sound as it is ramping up pressure.  When i use the barista knob for a profile with a slow ramp up there is no noise.  It also makes the noise when i do a back flush at about 4-5 seconds then is gone by 6-7 seconds into it.  I have opened a support ticket at WLL regarding this.

 

 

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