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Troubleshooting a used espress es-a1

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  • Erin
    Hi there, folks. I m brand new to the forum and I just recently got my hands on a Bunn Espress ES-A1. I haven t put any money into the machine yet, because the
    Message 1 of 9 , May 2 4:47 PM
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      Hi there, folks.
      I'm brand new to the forum and I just recently got my hands on a Bunn Espress ES-A1.

      I haven't put any money into the machine yet, because the current owner is being very lienent with me until I get the machine up and running. I was told it was maintenance serviced just before it was put into storage. I'm not really sure of the history of the machine otherwise.

      I have so far hooked it all in to the water supply and followed all the installation instructions in the manual. It seems that there's water in the tank and it's heating fine, but when I turn the steam or hot water knobs... well.. nothing really happens at all.

      I'm not sure of service providers in my area or if I'm looking at needing to replace a pump... or maybe it's something simple that I'm overlooking because I haven't worked with a machine like this.

      If there's anything anyone out there can do to help me out, I'd be very greatful.
    • Tex
      First things first - take as many pictures of the internal & external parts as you can and post them in an album you can create in the Photos section to the
      Message 2 of 9 , May 2 6:01 PM
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        First things first - take as many pictures of the internal & external parts as you can and post them in an album you can create in the Photos section to the left of the home page. That'll help us all by making sure we're on the same page, because there are many internal parts that're different from machine to machine.

        As for servicing the machine, it'll be pretty much up to you to do the work. It's asking a lot to expect over worked techs to work on a machine made in the early to mid nineties. The good news is these are relatively simple machines and as long as the PC board isn't damaged (seldom a problem) then with our help and advice, there's no reason you can't make this a working machine.

        Tex

        --- In BUG-is-Bunn@yahoogroups.com, "Erin" <aerynoustinne@...> wrote:
        >
        > Hi there, folks.
        > I'm brand new to the forum and I just recently got my hands on a Bunn Espress ES-A1.
        >
        > I haven't put any money into the machine yet, because the current owner is being very lienent with me until I get the machine up and running. I was told it was maintenance serviced just before it was put into storage. I'm not really sure of the history of the machine otherwise.
        >
        > I have so far hooked it all in to the water supply and followed all the installation instructions in the manual. It seems that there's water in the tank and it's heating fine, but when I turn the steam or hot water knobs... well.. nothing really happens at all.
        >
        > I'm not sure of service providers in my area or if I'm looking at needing to replace a pump... or maybe it's something simple that I'm overlooking because I haven't worked with a machine like this.
        >
        > If there's anything anyone out there can do to help me out, I'd be very greatful.
        >
      • Erin
        ... Thanks, I just uploaded a few photos to an album I titled Erin s ES-1A. We ve been working through the manual to see what we can manage and we think we
        Message 3 of 9 , May 2 6:42 PM
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          > First things first - take as many pictures of the internal & external parts as you can and post them in an album you can create in the Photos section to the left of the home page. That'll help us all by making sure we're on the same page, because there are many internal parts that're different from machine to machine.
          >
          > As for servicing the machine, it'll be pretty much up to you to do the work. It's asking a lot to expect over worked techs to work on a machine made in the early to mid nineties. The good news is these are relatively simple machines and as long as the PC board isn't damaged (seldom a problem) then with our help and advice, there's no reason you can't make this a working machine.
          >
          > Tex

          Thanks,
          I just uploaded a few photos to an album I titled Erin's ES-1A.
          We've been working through the manual to see what we can manage and we think we might have narrowed it down to the flowmeter.
          Is this an expensive/difficult part to replace on the machine?
        • Paul Albert Acosta
          It is not the flowmeter. The pump should turn on to administer a dose to the group head prior to the flowmeter pulses registering that stop the dosing.
          Message 4 of 9 , May 2 7:38 PM
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            It is not the flowmeter. The pump should turn on to administer a dose to the group head prior to the flowmeter pulses registering that stop the dosing. Regards,Paul Albert Acosta

            To: BUG-is-Bunn@yahoogroups.com
            From: aerynoustinne@...
            Date: Thu, 3 May 2012 01:42:11 +0000
            Subject: [BUG] Re: Troubleshooting a used espress es-a1






























            > First things first - take as many pictures of the internal & external parts as you can and post them in an album you can create in the Photos section to the left of the home page. That'll help us all by making sure we're on the same page, because there are many internal parts that're different from machine to machine.

            >

            > As for servicing the machine, it'll be pretty much up to you to do the work. It's asking a lot to expect over worked techs to work on a machine made in the early to mid nineties. The good news is these are relatively simple machines and as long as the PC board isn't damaged (seldom a problem) then with our help and advice, there's no reason you can't make this a working machine.

            >

            > Tex



            Thanks,

            I just uploaded a few photos to an album I titled Erin's ES-1A.

            We've been working through the manual to see what we can manage and we think we might have narrowed it down to the flowmeter.

            Is this an expensive/difficult part to replace on the machine?


















            [Non-text portions of this message have been removed]
          • Tex
            I d start by checking the fuse inside the black box. How do you know the boiler has water in it if the element is heating and no water or steam comes out of
            Message 5 of 9 , May 2 8:03 PM
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              I'd start by checking the fuse inside the black box.

              How do you know the boiler has water in it if the element is heating and no water or steam comes out of their respective valves?

              Whatever you do, do not let the element heat unless you're sure the boiler has water in it - that's the surest way to ruin the element.

              Tex

              --- In BUG-is-Bunn@yahoogroups.com, "Erin" <aerynoustinne@...> wrote:
              >
              >
              >
              > > First things first - take as many pictures of the internal & external parts as you can and post them in an album you can create in the Photos section to the left of the home page. That'll help us all by making sure we're on the same page, because there are many internal parts that're different from machine to machine.
              > >
              > > As for servicing the machine, it'll be pretty much up to you to do the work. It's asking a lot to expect over worked techs to work on a machine made in the early to mid nineties. The good news is these are relatively simple machines and as long as the PC board isn't damaged (seldom a problem) then with our help and advice, there's no reason you can't make this a working machine.
              > >
              > > Tex
              >
              > Thanks,
              > I just uploaded a few photos to an album I titled Erin's ES-1A.
              > We've been working through the manual to see what we can manage and we think we might have narrowed it down to the flowmeter.
              > Is this an expensive/difficult part to replace on the machine?
              >
            • Erin
              I m pretty sure water is going in. I m going to get into it and check the box as suggested. We have a direct line hookup and when I turn it on (To fill with
              Message 6 of 9 , May 2 9:00 PM
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                I'm pretty sure water is going in. I'm going to get into it and check the box as suggested.

                We have a direct line hookup and when I turn it on (To fill with the element off) I can hear the water flow into the tank. There's also some slight water flow through the main part, but not to the hot water outlet or the steam valve.

                When the tank heats, I do get steam out of that small valve at the top of the tank.

                How can I ensure that the tank is filling properly without flow through the hot water outlet?

                Detailed suggestions are welcome as I am just learning how to work on this sort of machine in general. My husband is an electrician in training, so I am working with him in order to make sure I am not working unsafely.
              • Ray B
                I would make sure the tank is full by following the initial fill instructions..Turn the toggle switch to the right and then press the single and double
                Message 7 of 9 , May 2 9:29 PM
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                  I would make sure the tank is full by following the initial fill
                  instructions..Turn the toggle switch to the right and then press the single
                  and double half-cup buttons at the same time. That will start the fill and
                  will stop when it's full.. Flip the switch back to the left..



                  The steam comes right from the top of the boiler, and the hot water off the
                  bottom, and does not go thru the flowmeter. The flowmeter is only used when
                  "dosing" a cup.



                  It sounds like it is not getting Hot enough to make steam and build up
                  pressure in the boiler.. Assuming it is full of water and you haven't burnt
                  out the element.





                  From: BUG-is-Bunn@yahoogroups.com [mailto:BUG-is-Bunn@yahoogroups.com] On
                  Behalf Of Erin
                  Sent: Wednesday, May 02, 2012 4:48 PM
                  To: BUG-is-Bunn@yahoogroups.com
                  Subject: [BUG] Troubleshooting a used espress es-a1





                  Hi there, folks.
                  I'm brand new to the forum and I just recently got my hands on a Bunn
                  Espress ES-A1.

                  I haven't put any money into the machine yet, because the current owner is
                  being very lienent with me until I get the machine up and running. I was
                  told it was maintenance serviced just before it was put into storage. I'm
                  not really sure of the history of the machine otherwise.

                  I have so far hooked it all in to the water supply and followed all the
                  installation instructions in the manual. It seems that there's water in the
                  tank and it's heating fine, but when I turn the steam or hot water knobs...
                  well.. nothing really happens at all.

                  I'm not sure of service providers in my area or if I'm looking at needing to
                  replace a pump... or maybe it's something simple that I'm overlooking
                  because I haven't worked with a machine like this.

                  If there's anything anyone out there can do to help me out, I'd be very
                  greatful.





                  [Non-text portions of this message have been removed]
                • Tex
                  You should always fill the boiler without having the element on - turn the switch clockwise all the way to the left. Does the pump work, or are you filling the
                  Message 8 of 9 , May 3 4:17 AM
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                    You should always fill the boiler without having the element on - turn the switch clockwise all the way to the left. Does the pump work, or are you filling the boiler on water line pressure?

                    For the water & steam valves to dispense anything the boiler temp needs to exceed the boiling point - both are fed by boiler pressure, not pump pressure.

                    First things first - does the pump work? If not, check the fuse inside the black box.

                    DO NOT TURN THE ELEMENT ON UNTIL EVERYTHING ELSE CHECKS OUT!

                    Tex

                    --- In BUG-is-Bunn@yahoogroups.com, "Erin" <aerynoustinne@...> wrote:
                    >
                    >
                    > I'm pretty sure water is going in. I'm going to get into it and check the box as suggested.
                    >
                    > We have a direct line hookup and when I turn it on (To fill with the element off) I can hear the water flow into the tank. There's also some slight water flow through the main part, but not to the hot water outlet or the steam valve.
                    >
                    > When the tank heats, I do get steam out of that small valve at the top of the tank.
                    >
                    > How can I ensure that the tank is filling properly without flow through the hot water outlet?
                    >
                    > Detailed suggestions are welcome as I am just learning how to work on this sort of machine in general. My husband is an electrician in training, so I am working with him in order to make sure I am not working unsafely.
                    >
                  • Tex
                    Refer to the article David Mankin wrote simplifying the initial start-up procedure for an ES-1A: http://tinyurl.com/84mhlzc Tex
                    Message 9 of 9 , May 3 10:09 AM
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                      Refer to the article David Mankin wrote simplifying the initial start-up procedure for an ES-1A: http://tinyurl.com/84mhlzc

                      Tex
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