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Got another one. Azkoyen Vienna.

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  • Got another one. Azkoyen Vienna.

    I grabbed a Azkoyen Vienna two group from a backpackers this morning. Listed as not working with an electrical fault.
    It's in really quite good condition externally. Dirty inside by the looks, only did a quick inspection under the drip tray. Sparkling compared to the Boema though.

    It looks to be 20amp single phase or something along those lines. Like a 15 amp earth pin on all three pins. I'd rather it run on 10 or 15amps so I might look into a lower watt element. Mind you, it looks as though the machine has a two or three stage element so it might be a simple case of disconnecting a leg or two.

    All push button controls so there's a chance they could be stuffed.

    I'll know more as I go, just wanted to know if there's anyone with experience with these machines.

    Cheers

    Sam

  • #2
    They're not bad machines, I'm not a fan of the design and the plastics seem to be quite brittle from my experience. Spares are readily available but if it's got electrical problems that extend to the circuit boards or touchpads you might be in for a rough time.

    The boiler pressure is controlled via SSR's and a pressure transducer or temperature sensor, not sure which, rather than a conventional pressurestat. The boiler pressure adjustment is on the circuit board under the drip tray, it's a tiny adjustable resistor.
    Caught me out the first time as I just expected it to have a pressurestat.

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    • #3
      Good to know. Cheers.

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      • #4


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        • #5
          All looks pretty normal in there. Pump is a lot newer than the rest of the machine. Side covers are all cast aluminium, no plastic. Much nicer construction than the Boema was.

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          • #6
            Got another one. Azkoyen Vienna.

            High pressure hose the night away. It's not looking as bad as some.

            What delights are inside that boiler waiting for you? [emoji3][emoji322]

            All the best with the reco

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            • #7
              Yeah [emoji23] plumbed by Bunnings!

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              • #8
                Ok. Pump works. Volumetric works. Elements aren't getting any current and I've got a flashing red light on the main board. No luck finding a manual. Any help greatly appreciated.

                Also... who in their right mind puts a control board directly under a group head. I almost had a disaster with a drip.

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                • #9
                  Uhh... ok. Still can't get any action from my multimeter on any of the switch or element terminals... but it's getting warm. In position one at any rate. This is where everyone gets worried and comments on not sticking your nose where it doesn't belong, right?

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                  • #10
                    Yeah. [emoji58]
                    Set on DC.
                    It's working fine.

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                    • #11
                      Well, if this thing has an 'electrical fault' as advertised I can't find it. Heats up, steams up, pulls a shot. All volumetric buttons work. Hot water works. Pressure sensor works. Boiler probe works. Gauges work.
                      Only thing I can't check is the third element position. Only got a 15 amp circuit in the shed. One and two work though.

                      Happy days!

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                      • #12
                        Originally posted by SPH View Post
                        Also... who in their right mind puts a control board directly under a group head. I almost had a disaster with a drip.
                        At least Azkoyen encased their boards in some kind of resin, so stray drips are less likely to cause an expensive loss of 'magic smoke' than with other makes. Although you need to be very careful not to fry the board since they are now unavailable - we've got maybe a dozen Viennas sitting in storage that can't be resurrected since all the control boards have been taken to fix machines in use.
                        If it genuinely has an electrical fault but everything appears to be working and you haven't tested the third leg of the element, my guess for the most likely possibility is the last leg is either not heating, or continues to heat after the machine gets up to the set pressure. Sometimes the Solid State Relays fail in a 'permanently on' state, so while 2 legs shut off, the dodgy one keeps heating so that the machine slowly overpressurises. It's about the only electrical fault I can think of with a Vienna that won't show up if all but one leg is switched on.

                        You won't be able to find a manual anywhere, but programming is easy enough. Press the red button on the very left and the light by the power switch should start blinking - that puts you in program mode, and you use the 'master' left touchpad to program the doses - from memory you have to stop each dose you program with the stop button, not by re-pressing the dose button you are setting. You can program the right 'slave' touchpad to different settings by entering program mode then pressing that red button again so the indicator light blinks faster, then program the buttons on the 'slave' pad. Setting boiler temperature is by the tiny blue potentiometer on the right side of the board visible through a little hole - the red LED beside it indicates when the boiler is heating, and it's a bit of a fiddly procedure getting it set where you want it, but essentially you check it by opening a steam tap until the light comes on, and watch the light and the gauge to see where the pressure is on the gauge when the light goes out.

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                        • #13
                          Awesome, that's really helpful. Thanks!
                          I switched the machine to full power once I'd had it sitting on the bench for a while. The circuit managed it and all three legs powered up. It switched on and off as expected. Didn't over pressurise. I'll power it up again tomorrow and do some more bench testing. As great as it is to find no problems it's unlikely it was retired for no reason.

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                          • #14
                            On a winner.

                            Any special "flavours" coming from the boiler? [emoji6]

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                            • #15
                              Originally posted by noidle22 View Post
                              The boiler pressure is controlled via SSR's and a pressure transducer or temperature sensor, not sure which,
                              It's a temperature probe in the left hand end of the boiler, which sends a signal back to the board, setting is adjusted by a potentiometer, then the board sends a trigger voltage to each of the SSRs. The power to the SSRs comes from the power switch, which determines how many of the SSRs are powered up according to the switch position.

                              Also, if you need to replace seals and showers in the groups, chances are the heads/handles have enough wear that the standard 8mm thick Azkoyen seals let the handles rotate too far in the groups - what we use if the standard seals are too thin are 8.5mm seals for a CMA/San Marino machine, or if those aren't thick enough we use 9mm thick Faema seals. Standard Azkoyen showers may be hard to get, and also rely on a thin ridge around the edge of the removable brass diffuser in the group to locate them centrally. Often this is worn away, and we have been fitting Marzocco showers instead, since these have a shallow cup shape which fits over the edge of the diffuser and locates itself centrally.

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