Hi Dave, How are you? Would appreciate yr 5 minutes on follwing questions: As You are my Vesuvius Ambiente specialist maybe you can help me out. Feel free to answer straight below each item: 1. My gearpump seems to have problems to get the air out when starting up. It does start up but then refuses to pump water in the boilers. Machine indicates filling time out and opening the brew and or steam boiler does not respond. Heating up doesn't start either due to pump failure. (video attached) This is my second Fluidotech gearpump and I cannot believe it is broke again (400 eur) Do you have any ideas tot get the air out, maybe it will result in the pump to restart teh proces. 2. Tubing: I find the ptfe high temp tubing very vulnerable and have frequent ruptures/leakage. Would like to hear yr opninion of an alternative I found: . 3. E61 maintenance: Would it be an idea to swap the standard o-rings in the valves with higher quality silicon O-rings, material like Cafeta are using for their group head rings? Please view options here: . Thanks beforehand for yr reply. (I hope I receive a signal when you do so) Best Regards, Edwin

> @"Edspresso"#p57211 Feel free to answer straight below each item: > > My gearpump seems to have problems to get the air out when starting up. It does start up but then refuses to pump water in the boilers. Machine indicates filling time out and opening the brew and or steam boiler does not respond. Heating up doesn’t start either due to pump failure. (video attached) > > This is my second Fluidotech gearpump and I cannot believe it is broke again (400 eur) > > Do you have any ideas tot get the air out, maybe it will result in the pump to restart teh proces. > Tubing: I find the ptfe high temp tubing very vulnerable and have frequent ruptures/leakage. Would like to hear yr opninion of an alternative I found: . > E61 maintenance: Would it be an idea to swap the standard o-rings in the valves with higher quality silicon O-rings, material like Cafeta are using for their group head rings? > > Please view options here: . 1. It's unlikely you have had 2 gear pump problems and the first time you had a problem, it could well have been the pump magnet a cheap replaceable part. There is no video attached, so I cannot comment further, except to say…perhaps it needs descaling??? You don't mention exactly what water you use. 2. The PTFE tubing isn't very vulnerable, its good to 25 bar. If it's bursting and rupturing you have a problem. In the brew circuit there are solenoids that switches the HX in and out, as well as connecting/disconnecting the HX during the shot. If one of these solenoids is blocked, the tube can rupture due to hydraulic pressure caused by water expansion. 3. No, the standard O rings are fine, they are Viton (FKM) and probably better for the job * What sort of maintenance have you done on your machine? * How old is it (when was it manufactured)? * Who told you your first pump needed replacing? * Have you owned it since new….if not when did you buy it? *

Thanks for yr quick reply Dave. Further to yr questions: 1. I cannot upload the video, but happy to send you by wetransfer.com. I would need yr mailaddress for that. Water is Dh 5 in our area, which is harder than I was told before. Therefore i encountered severe scaling in the boilers. I took them out and completely cleaned them and heating elements, renewing the sealing. I will buy a water softener when I have resolved the machine issue. Description of problem: I filled the boilers up after maintenance, pump worked alright, but my mistake i swapped the heatsensors, so I obviously got an alarm on high brewboiler temperature (which was the temp of the steamboiler of course). After I corrected this the machine started to show the said pump issue. It starts a few secs but then stops; display shows interval water min-max and then "filling time out" after the set period of 100 sec. Boiler heating does not start at all because it is waiting for the pump I presume. I sent the video to ACS last week and they tell me that I need to replace the pump. (wailing new stock replenisment) By the way, in 2019 pump was replaced under guarantee by Paolo, where I let the installation do by their retail partner. 2. OK, clear. I will reorder the 25 Bar tubing again; Is it OD 6x ID 4 mm?? 3. I took apart the E61 and cleaned all inlet and outlet valves, so this should prevent the issue I assume. 4. Thanks, I will stick to the standard O rings as you advise. 5. Machine was produced Q4-2016 and I bought it NEW from well known Stockholm Retailer Monteriva in box and protection film in Q4-2017. 6. Elcor told me. Tiziane sent a new one under guarantee in june 2019 to retailer; this is the one on photgraph. 7. As said, first owner as from nov 2017. Look forward to yr response!

[URL=https://i.imgur.com/ucb7yIU.jpg][IMG]https://i.imgur.com/ucb7yIU.jpg[/IMG][/URL]

> @"Edspresso"#p57248 I cannot upload the video, but happy to send you by wetransfer.com. I would need yr mailaddress for that. > > Water is Dh 5 in our area, which is harder than I was told before. Therefore i encountered severe scaling in the boilers. I took them out and completely cleaned them and heating elements, renewing the sealing. I will buy a water softener when I have resolved the machine issue. > > Description of problem: I filled the boilers up after maintenance, pump worked alright, but my mistake i swapped the heatsensors, so I obviously got an alarm on high brewboiler temperature (which was the temp of the steamboiler of course). > > After I corrected this the machine started to show the said pump issue. It starts a few secs but then stops; display shows interval water min-max and then “filling time out” after the set period of 100 sec. Boiler heating does not start at all because it is waiting for the pump I presume. > I sent the video to ACS last week and they tell me that I need to replace the pump. (wailing new stock replenisment) By the way, in 2019 pump was replaced under guarantee by Paolo, where I let the installation do by their retail partner. To put a video on here, upload to YouTube as unlisted and simply paste the YT link here, the forum will do the rest. I don't believe in coincidences, so it's quite likely there is nothing wrong with the pump, especially as it showed the issue only after the descaling. It could be that the system is still scaled around the solenoids and pathway to the brew boiler, did you run descaler through these parts? If you did descale by running the pump with descaler in the tank, perhaps some loose bits of scaled lodged in a solenoid. *This was the reason your PTFE tubing had a problem as one of the solenoids would have scaled and water expansion fractured the tubing. As I mentioned earlier.* I can't be sure, but yours was an early model and around the time when some the FOT gear pumps had a bad drive magnet…the coupling between the induction motor made by Cruzet and the gear pump head. I suspect the Retailer just bullied ACS into sending a new pump when all that was needed was a replacement pump magnet (retailers tend to do this). https://www.youtube.com/watch?v=TV6Joe07VrI **Until I see the video, I can't know your pump is completely OK, but I suspect there is nothing wrong at all with your pump.** It might just be that it needs priming using a squirt bottle full of water on the inlet tube. Sometimes they can be reluctant to prime. Something like this [upl-image-preview url=https://i.imgur.com/SqWt1qz.png] **One important thing, to get the pump to prime, you should be using a flat 9 bar profile!**

Video posted on yt: https://youtube.com/shorts/0u0j4wygMeo?feature=share NB I just learned from ACS that indeed they only sent a new magnet in 2019, I was under the impression they sent a fully new pump. So the picture displays the original pump, but has had a new magnet mid 2019. I will follow yr tips on priming asap. Keep you posted dave! thks again

@"Edspresso"#p57260 That video is mostly of the pump….I've seen those pumps before. I want to see the display only. That video tells me very little. I can hear the pump start…but why is it stopping after 4 seconds? * **there should be a pump timeout, normally 100s, so if a boiler isn't filling the pump won't stop in 4s unless you have changed this setting** * Check the pump timeout setting * a broken pump won't make it run for 4s then stop (unless it's a fault I've never seen before) * I can't see what the display is saying, so shoot the video with the display * **I assume this is the autofill in action….you're not lifting the lever?** * **there is a switch under the machine for tanked or plumbed operation (check that it is in the correct position)** There are some diagnostics you can try (depending on what the problem might be), but at the moment I don't want to take the time to go through it, and to put you to the trouble until I have a clearer picture of what's going on and the information being supplied is accurate and complete.

Stopping after 4 seconds is exactly my problem; I have not changed filling time out setting, so after 100sec it will indeed go into red alarm indicating the time out; nothing happens in between the 4 and 100 secs. I just again checked the time out in the advaced settings mode to be sure. see video: Machine stops after 100 secs indicating picture:[URL=https://i.imgur.com/X2nIg6Q.jpg][IMG]https://i.imgur.com/X2nIg6Q.jpg[/IMG][/URL] Re **lever lifting:** **downwards and open no difference.** Re Switch under: In tanked position (off) ( I do not use the plumbed option)

ACS Vesuvius Gearpump, Tubing, Rings and gaskets

DavecUK

Edspresso That video is mostly of the pump….I’ve seen those pumps before. I want to see the display only. That video tells me very little. I can hear the pump start…but why is it stopping after 4 seconds?

there should be a pump timeout, normally 100s, so if a boiler isn’t filling the pump won’t stop in 4s unless you have changed this setting
Check the pump timeout setting
a broken pump won’t make it run for 4s then stop (unless it’s a fault I’ve never seen before)
I can’t see what the display is saying, so shoot the video with the display
I assume this is the autofill in action….you’re not lifting the lever?
there is a switch under the machine for tanked or plumbed operation (check that it is in the correct position)

There are some diagnostics you can try (depending on what the problem might be), but at the moment I don’t want to take the time to go through it, and to put you to the trouble until I have a clearer picture of what’s going on and the information being supplied is accurate and complete.

Edspresso

Stopping after 4 seconds is exactly my problem; I have not changed filling time out setting, so after 100sec it will indeed go into red alarm indicating the time out; nothing happens in between the 4 and 100 secs. I just again checked the time out in the advaced settings mode to be sure.

see video: https://youtu.be/jOqDLDdP4Ps

Machine stops after 100 secs indicating picture:

Re lever lifting: downwards and open no difference.

Re Switch under: In tanked position (off) ( I do not use the plumbed option)

DavecUK

Please make the video I asked for of the screen with sound, then we can work the problem.

Edspresso

DavecUK

In my latest message I now have enclosed a link to the video you asked for. I checked and it did have sound. 👋

DavecUK

Edspresso In my latest message I now have enclosed a link to the video you asked for. I checked and it did have sound. 👋

OK and one last thing, can you give me the detail for pressure profile 3 please.

Edspresso

DavecUK

My Vesuvius profile 3 settings: https://youtube.com/shorts/PpnRu7SjP6o?feature=share

DavecUK

OK set a straight 9 bar profile, then try it again, tell me what happens, same or different

Edspresso

DavecUK

Put 45 secs on 9 bar in profile 5 -> Unfortunately same result

Edspresso

Hi Dave, fyi I upon request of ACS I checked the transformer, but seems OK. (see photo)

I have put some manual air pressure on the tube as you suggested but no effect. Of course I could not combine it with the suggested 9Bar you suggested as machine does not take up heating process.

Q1: I do not see the 2 red led lights in the relay box. Is this logic given the described problem??

Q2: Would it be an idea to take the pump out and open it to release the magnet?

Thks

DavecUK

Edspresso I have put some manual air pressure on the tube as you suggested but no effect. Of course I could not combine it with the suggested 9Bar you suggested as machine does not take up heating process.

I don’t understand, the 9 bar is nothing to do with heating but about the profile and pressure settings for the pump?

Q1, Do you mean the main board? or the 2 little SSRs?

Q2, I don’t know, it’s possible, but that would be the last thing I would do.

Edspresso

Re 9 bar: Clear, but pump does not deliver the requested 9 bar because of the problem

Re Q1: the 2 little SSR’s

Re Q2: too late 🥴 I followed yr yt instruction Just to see if there was scaling, but couldn’t find any.
Would you know where i can buy a new magnet, maybe worth while trying.

Cheers, Edwin

DavecUK

Edspresso ACS, or try any espresso parts supplier.