Gtbarringer However now I have a new problem. The machine will turn on and come up to temperature just fine. However when the pump switch is engaged, the Machine trips the GCFI breaker in the house and loses all power. Do you think the pump has a short or a bad toggle switch ? Any tips on how to trouble shoot would be appreciated. I do have a multi meter to test the circuit.

  • have you done anything at all to the machine before this problem started?
  • Check that a wire on the vent solenoid is not touching the case…remove the shield and look
  • Check a wire on the pump is not touching a metal part

The above is because the only things that happen when you flip the brew switch is..pump starts and solenoid pulls in.

If none of the above questions reaps dividends. Then:

  • disconnect the pump, does it still happen?
  • Disconnect the solenoid, does it still happen?

I found the culprit. I guess there is enough water tripping on the ground to cause a GCFI outlet to trip.

Suggested course of actions ?

    Gtbarringer Suggested course of actions ?

    Simple job…once you get access. Undo the part, clean and refit with PTFE tape. Depending on age of machine (I believe jan 22) it may be permanent thread lock which if on the steam valve will invariable leak after 3 or 4 years. if it’s semipermanent, then it’s just bad luck (but much easier to undo). I can’t remember when exactly I threw a wobbly about the use of permanent thread lock and when it stopped…but I think around that time.

    Use a good fitting set of open ended spanners, if that’s an elbow…I’m guessing hard because it’s so close up, I can’t see the fitting or where it’s fitted to, so no context. Do another shot from further back to put the fitting into it’s proper context (photos are free to post, so you can post more than 1 more if you want).

    I suspect the drip may be onto the solenoid valve?? (again guessing, so I won’t post any more until I see some more photos, as I don’t want to lead you up the garden path..

    a month later
    9 days later

    Surprise leak from the pressure gauge on the group head today.

    Never changed one of these before. Anything to know to get it seated straight?

      Raziel it’s very easy. 1st make absolutely sure you don’t twist the gauge by the body, if you do there is a great chance of the retaining mechanism between the guts of it and the case snapping off inside. There is a square nut type thing behind the gauge, use that to loosen it with a think spanner, or thin long nose pliers.

      Then rewrap the thread in PTFE to it feel tight all the way in and stop when the gauge is in sufficiently (not all the way) and properly aligned

      24 days later

      DavecUK Does anyone have a download link for the latest manual for the ACS Minima please? These links don’t seem to work any more. I am going all digital and don’t quite feel like manually scanning the paper manual I own.

        Ovidiu Does anyone have a download link for the latest manual for the ACS Minima please? These links don’t seem to work any more. I am going all digital and don’t quite feel like manually scanning the paper manual I own.

        https://www.acs-espresso.it/wp-content/uploads/2023/11/Manuale-Minima.pdf

        And tyhe online one I did, the link still works fine? https://www.acs-espresso.it/wp-content/uploads/2023/11/Manuale-Minima.pdf

          DavecUK Thank you, I got his one downloaded. Not sure about the other link, maybe it’s an issue on my side, but it didn’t work. I even went to the old tapatalk forum and tried the OneDrive link you gave their but that one didn’t work either. :-)

          Yeah works OK opening on my phone

          a month later
          • Edited

          Haven’t been in the machine recently. This is new. Looks like something is leaking

          Any advice on where to start?

            • Edited

            Raziel

            Observe it warming up from cold with the lid off, i suspect it’s coming from the fitting marked.

            8 days later

            Not sure I know how to search “within” a specific thread yet (if that is possible?). I am going back and forth over whether getting flow control on a new ACS Minima would be advantageous or not. Is it highly recommended to have that added or does it not make a meaningful difference?

              gregE I added flow control to mine (I was the 1st one)….I liked it, but I found the slowing ramp rate of the Minima gave a great shot as well.

              Get a price with and without and then decide. It has come a long way since the early machines and is a mature product now (they know how to build them and they do it well. Drip tray grids are thicker, accessible drain valves for both boilers underneath (on copper tube extensions, nicer looking PID display etc..

              The main thing I love about it is the solenoid group, just super low maintenance, unlike lever E61s. Don’t worry about the lack of a preinfusion chamber, makes no difference when using a vibe pump. In fact I wish more manufacturers would move to these E61 solenoid groupheads (It’s marketing fear that they don’t!).

                DavecUK you actually just answered my next question about preinfusion. Reading my mind. Good to know that the vibe pump cancels that out

                One interesting tidbit about the Minima. The espresso cup “riser” (i.e. platform) is 13cm x 10cm x3cm so you have to get a pretty small scale to fit on that. Or maybe it is easier to use without the riser? Currently in process of purchasing it so I am trying to think about the workflow as it will actually carry out.

                Say lessss. you answered my question