Hey was wondering if anyone can give some advice on this. This is my first espresso machine so pretty naieve but I think I have an issue with the Puristika. In short the only way that I can pull a shot fully is if I hold the brew lever in the upright poisition with my hand for the entirety of the shot. If I do not hold the lever as soon as there is a ramp up in pressure the lever moves slightly and disengages slightly from the pressure switch - can hear the click of the pressure switch. I have uploaded a video to Youtube which shows the issue - using a blind portafiler (don't want to waste beans) How long have I had this issue - well I think pretty much from the beginning (ony had 2 weeks). Took me a while to realise that I am not meant to hold the brew lever in place with my hand - watched some other videos and others do not have this issue. Before I play around and fiddle with things thought it best to see what you thought. I have also emailed the retailer for their advice as well. Here is the video below: [Puristika](https://www.youtube.com/watch?v=fhPSDY0IcAU)

@"Beverast"#p1336 - that’s a problem very easily fixable I believe. You just need to adjust the switch. I don’t have an e61 anymore but I’m sure @"Elcarajillo"#46 or @"DavecUK"#1 can explain what to do. If however, there’s a major problem with the switch, it’s best tomdontsct your retailer as the machine is under guarantee. In fact, I’d contact your retailer first before doing anything. 👍

Just adjust the pressure switch out slightly. I checked mine and it's slightly unusual in the outside nut secures the switch to the case….**All the adjustment to push the pin forwards seems to be done from inside, and unfortunately I don't have a photo of that specific part.** If you take that photo of the back of the Microswitch, we should be able to help. [upl-image-preview url=//i.imgur.com/sj2R4lW.jpeg]

Thanks for the quick repsonse guys, very much appreciated. Looks like a simple enough fix - Dave, I will look into what you have suggested once the retailer gets back to me. Thanks again for the help.

Dave is correct, there is a lock nut on the back of the brew switch. You will need access to the back and a 14 mm or slim adjustable spanner. Slacken the front nut then rotate the (rear) locknut with fingers to allow the switch to move forward, (try about 1 turn) then retighten front nut and check the action. If not enough try another part turn until you are satisfied with position. Gently nip up front nut while holding the switch steady. NB. Turn off power before opening the case.

So, some sucess but not completely. Retailer got back to me and suggested exactly what everyone has advised here…move the switch forward. So, I took off the casing and have moved the panel at the back of the switch as far forward as it can go (there is no nut to fiddle with, just a panel). This has now eliminated the pump switching off, so that issue is fixed. However, the PID is still switching from the shot timer to the temperature reading when you get the ramp up in pressure - the brew lever is still moving ever so slightly which disengages from the pressure switch (can hear the click). As said the pump still goes, but the shot timer switches to the default temperature reading. You can see this in my Youtube video below. Any other suggestions at all? https://www.youtube.com/watch?v=jNHEpoOy6Gw

@"Beverast"#p1529 I asked you to take a photo/s of the back of your switch, because I don't have a photo of that part and I have a prototype. If you did, can you post them here, just in case we're missing something on how to adjust it, and I can check the wiring to the switch.

Dave, please see photos below. I thing the issue is now fixed. I ended up tightening up everything a little bit more and now the PID is not switching and there is no click. Still need to test it on a shot though. [img]https://i.postimg.cc/sx2TX0r9/pur01.jpg[/img] [img]https://i.postimg.cc/W10w2PZc/pur02.jpg[/img] [img]https://i.postimg.cc/63prL2mB/pur03.jpg[/img] https://www.youtube.com/watch?v=cSovTweDM2Y

Interesting, they are using one switch for the pump and the other for the PID timer start stop. I guess they may have been worried about interference? Glad it's sorted now.

@"DavecUK"#p1543 Have just done a test shot and everything is working fine. Need to work a bit on my puck preparation though haha. At least I got my timing just about right - 18grams in, 25 seconds, 36 grams out. Maybe a tad overextracted. Either way really appreciate all the help and advice. https://www.youtube.com/watch?v=Sfls7nTCth8

Good to see you back up and running

ECM Puristika Issue

Beverast

Starred No idea when it will be solved but they are looking into it. Whether you would have the same problem if you bought one would come down to luck. I’m sure there are a lot of people who have no issues whatsoever. The issue is a minor inconvenience for me at the moment but could be a big issue for you. If I knew this was going to be an issue I would have held back on purchasing it until the issues are resolved.

Starred

Beverast

yep, good idea. However, how would I know the issue is resolved, and that the machine I purchase is a the ‘new’ version?

DavecUK

Starred how would I know the issue is resolved, and that the machine I purchase is a the ‘new’

I guess you would wait for news that it has….As soon as I hear anything, I will update here..

If the change is as I suspect, it should be a straight forward dealer/user fit option. Once the change is rolled out, I would imagine dealers will simply update any existing stock, so it shouldn’t be an issue.

Starred

@DavecUK: Do you advise to wait, or is this not necessary?

DavecUK

Starred Do you advise to wait, or is this not necessary?

The problems of thermosyphon stall, only happens sometimes on start up from cold when using a timer. It’s fixed by simply running a little water through the E61 group . It never happens once it’s warmed up and running.

It won’t happen if you switch on from cold, run some water through the group and then let it warm up.

I feel sure once there is a fix, the dealerships with either do it, or send the part out for you to fit yourself….

Starred

Thanks Dave!

Other question, how long does it take for the Puristika to fully heat up?

Beverast

Starred About 5 minutes or less to get the boiler to 93 degrees. The group head I would say around 30 minutes, maybe a little longer.

Starred

Can the latter be speed up in one way or another?

DavecUK

Starred Can the latter be speed up in one way or another?

you can put a towel over the group, probably shave 5 minutes or so off the time.

The only other way would be to overheat the brew boiler (by 10-15C) for the first 12 minutes and then drop the temperature to the correct one required for brewing…this would probably reduce heating time to 17 -18 minutes. This would require the firmware to be modified, of course.

MediumRoastSteam

DavecUK The only other way would be to overheat the brew boiler (by 10-15C) for the first 12 minutes and then drop the temperature to the correct one required for brewing…this would probably reduce heating time to 17 -18 minutes. This would require the firmware to be modified, of course.

And this is exactly what Lelit does. 😊

Starred

Flushing doesn’t help?

DavecUK

Starred Flushing doesn’t help?

It might make a marginal difference…A tea towel over the group is much more effective.

Beverast

Well, a quick update after 2 weeks. I have just been using the machine daily and over the last 48hrs the group head is now heating up on its own without engaging the pump. Previously it would fail 9/10 times so pretty happy that this issue has gone for now at least. Still interested to see what ECM’s fix will be.

Starred

Here a video I found on Youtube with a similar problem:

[

DavecUK

Starred He should have just reached over and grabbed a handful of group, much more dramatic….🤣

Starred

My dealer says that there are some models of other brands with the same issue and as these models never received a formal fix, it is likely that the Puristika will not get a fix either….

DavecUK

Starred The Puristika, will get a fix.

Starred

Cool.
I am willing to wait for a while.
But how will I know that they have fixed it?

DavecUK

Starred I am willing to wait for a while.
But how will I know that they have fixed it?

I would imagine the retailer will send you a small part, or ask you to send it in?

Starred

Again had some email exchanges with my retailer. He said he enquired (I don’t know where) about this issue, and the response was:
“This is not a defect. This occurs in every E61 machine with Eco modus and ‘flow through’ (I don’t know if this is the correct translation?) boilers. You can speed up the heating process by flushing”

No clue what the value of this response is anymore to be honest

DavecUK

Starred No clue what the value of this response is anymore to be honest

Very low, written by a retailer who doesn’t really understand machine design.

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