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Water flow problem when machine gets hot - PLEASE HELP

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  • #16
    Re: Water flow problem when machine gets hot - PLEASE HELP

    Theyre closed until Monday Ill bring it in then.

    From looking at the inside of the machine Im figuring the only adjustments possible are the height of the water sensor and the pressurestat.

    Could lowering the pressure in the boiler help my situation?

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    • #17
      Re: Water flow problem when machine gets hot - PLEASE HELP

      I dismantled the diffuser and shower screen and let them soak in cleaner.

      I then did a few back flushes with the cleaner.

      And now the low flow problem is gone.

      I’m figuring the 3 way valve was stuck or something. Not sure why it would influence the flow only when the machine was hot.

      *** My new problem is low coffee temperature ***

      I know I can increase it by turning the adjustment screw on the Sirai pressurstat but how many turns can I do without damaging it.

      My espresso is around 60°c right now.

      Also how do you measure the deadband of the pressurstat?

      Happy new year everyone and thanks for all the help so far.

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      • #18
        Re: Water flow problem when machine gets hot - PLEASE HELP

        Hi guitarboyled,

        Glad to hear youve sorted the water flow problem out.

        How are you measuring the water temp? I can tell you from experience, its quite difficult to get an accurate temp measurement from the group head. short of buying a scace device for $500, the only other way to reliably measure the temp is to buy a bead type thermocouple and dose the handle as normal then carefully place it on top of the coffee. If there are any leaks around the group seal, then youll probably receive a low reading.

        Does the coffee taste good? If so, ignore any temperature reading youre getting. The fact is, a HX system is more likely to run hot than anything else.

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        • #19
          Re: Water flow problem when machine gets hot - PLEASE HELP

          Happy new year ACoq and thanks for the help

          Everything is perfect right now... Plenty of water and steam.

          I simpy measured the temp of the water in the cup.

          Not trying to get that perfect temp but a hotter espresso would be great.

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          • #20
            Re: Water flow problem when machine gets hot - PLEASE HELP

            Originally posted by 2F3D213C293A2A2731242D2C480 link=1293644753/18#18 date=1294015890
            Not trying to get that perfect temp but a hotter espresso would be great.
            How does the espresso taste boyled?

            Thats the only measurement that is important and if its not hot enough, then maybe you can make yourself a shortish Long Black to pull the temperature up a bit. Extracting espresso with too high a temperature will burn the coffee with the result that it will taste really, really bad in the cup.

            Espresso is what it is, so if you need to modify it in some way to make the drink more pleasurable for you then that needs to be done after the espresso is in the cup or in the case of a Long Black, on top of Hot Water (not boiling) in the cup.

            All the best mate and happy experimenting....

            Mal.

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            • #21
              Re: Water flow problem when machine gets hot - PLEASE HELP

              Originally posted by 1835313D305C0 link=1293644753/19#19 date=1294039599
              How does the espresso taste boyled?


              Mal.

              Mal, how did you ask that with a straight face? ;D

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              • #22
                Re: Water flow problem when machine gets hot - PLEASE HELP

                Originally posted by 6A627A706D090 link=1293644753/20#20 date=1294044853
                Originally posted by 1835313D305C0 link=1293644753/19#19 date=1294039599
                How does the espresso taste boyled?


                Mal.

                Mal, how did you ask that with a straight face?  ;D
                I was thinking the same

                However Mal was more than likely sincere

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                • #23
                  Re: Water flow problem when machine gets hot - PLEASE HELP

                  Of course he was AM,

                  But it begged the question... ;D

                  I was the one who voiced it...

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                  • #24
                    Re: Water flow problem when machine gets hot - PLEASE HELP

                    ;D ;D ;D

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