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Vibiemme Domobar Super - Pump working, no water.

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  • #16
    Sounds that way unfortunately. It's not that difficult (at least not on mine).

    But before you do, perhaps check the solenoids.

    Disconnect the power cord from the wall outlet and with an ohmmeter check resistance across the solenoids. If they show zero they are probably shorted and need replacing. There are other tests, but involve live power (24 volts or 230 depending on your machine).

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    • #17
      Originally posted by robusto View Post
      Sounds that way unfortunately. It's not that difficult (at least not on mine).

      But before you do, perhaps check the solenoids.

      Disconnect the power cord from the wall outlet and with an ohmmeter check resistance across the solenoids. If they show zero they are probably shorted and need replacing. There are other tests, but involve live power (24 volts or 230 depending on your machine).
      Where abouts do I check the reaistance, is it juat in the pins? I've circled where I checked and it showed resistance.

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      • #18
        The two spade terminals facing each other is where you measure. Should get resistance of around 0.7 K ohm (mine reads between 0.7 and 0.8).

        I'm not familiar with your Vibiemme, but there should be two solenoids -- the two way fill valve one, and the three-way on the actual group.

        T

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        • #19
          Originally posted by robusto View Post
          The two spade terminals facing each other is where you measure. Should get resistance of around 0.7 K ohm (mine reads between 0.7 and 0.8).

          I'm not familiar with your Vibiemme, but there should be two solenoids -- the two way fill valve one, and the three-way on the actual group.

          T
          Ok so the two way valve is measuring 0.9

          I might need help identifying the other solenoid valve.

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          • #20
            Originally posted by robusto View Post
            I'm not familiar with your Vibiemme, but there should be two solenoids -- the two way fill valve one, and the three-way on the actual group.
            Think the VBM uses a proprietary version of an E-61 Group so there should only be the Boiler Fill Solenoid.
            Worth stripping down the Group to its component parts, cleaning then replacing any worn components and reassembling (relubing the Leva Cam also)... Site Sponsor Coffee Parts will have all the necessary bits and pieces but you need to state that you have a VBM machine, as some of the parts are slightly different to other E-61 Groups.

            Mal.

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            • #21
              Originally posted by Dimal View Post
              Think the VBM uses a proprietary version of an E-61 Group so there should only be the Boiler Fill Solenoid.
              Worth stripping down the Group to its component parts, cleaning then replacing any worn components and reassembling (relubing the Leva Cam also)... Site Sponsor Coffee Parts will have all the necessary bits and pieces but you need to state that you have a VBM machine, as some of the parts are slightly different to other E-61 Groups.

              Mal.
              Ahh ok that makes me feel a little bit less stupid. Any idea how I get to the pipes right at the back there that connect to the group head? Struggling to get in from the side, just get a longer wrench?

              I'm hoping nothing is worn. the machine has "apparently" never been used, which explains the no scale situation but maybe they just gave it a good descale before selling.
              Last edited by nickrauksts; 17 August 2019, 08:22 PM.

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              • #22
                Nick you did say this machine has a brew button and no brew lever correct? could you take a photo of the front?

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                • #23
                  Originally posted by Hoggy42 View Post
                  Nick you did say this machine has a brew button and no brew lever correct? could you take a photo of the front?
                  Sure thing

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                  • #24
                    Mal may well be right--as I say, I am not familiar with the Vibiemme. But the absence of a lever, and instead having a brew switch, led me to believe it should have a three-way valve operated by a solenoid.

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                    • #25
                      Originally posted by robusto View Post
                      Mal may well be right--as I say, I am not familiar with the Vibiemme. But the absence of a lever, and instead having a brew switch, led me to believe it should have a three-way valve operated by a solenoid.
                      Is there any danger in me running the machine with the brew group detached to see if the water is at least getting there from one of the two pipes that connect to the brew group?

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                      • #26
                        Juat wondering if this is what I should be seeing after removing the shower screen and the group sprayer? Also, I know my machine is slightly different to this as it does not have the brew lever, but I dont have parts 6, 7 or 8. Should I?

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                        • #27
                          Originally posted by robusto View Post
                          Mal may well be right--as I say, I am not familiar with the Vibiemme. But the absence of a lever, and instead having a brew switch, led me to believe it should have a three-way valve operated by a solenoid.
                          The photo of the front is from too high an angle to show it, but there should be a little stainless steel 'box' under the group head that covers the 3 way valve, probably held in place by the exhaust tube that points down into the drip tray. Unscrewing the exhaust tube should allow the cover to slide down and off the 3 way valve, then there will probably be a thin 14mm nut that you undo to remove the coil to access the terminals to test it.

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                          • #28
                            Originally posted by nickrauksts View Post
                            I dont have parts 6, 7 or 8. Should I?
                            Those parts are the inlet valve that is operated by the lever cam - a non-lever group like yours won't have those.

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                            • #29
                              Yep, M-GT is correct if you have a non-leva Group...
                              Thought you had a Leva E-61...

                              Mal.

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                              • #30
                                I think this is the group you are looking for. If I had to take a guess I'd say all of those years of this machine sitting around I'd say something is stuck or seized keep doing what you are doing stripping and cleaning reassemble and test.
                                Click image for larger version

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                                https://www.coffeeparts.com.au/parts...enoid-operated

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