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La Pavoni ERH New Toy

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  • #31
    Re: La Pavoni ERH New Toy

    Slightly off topic but the Hottop thing is very true, my D is a newer model lthan Andys and mine runs 2-3 minutes quicker and Andys nearly runs out of time. So my take on a Hottop D is different to another with the same model.

    Given the 40 years of the Pav (I think) there has been plenty of minor changes along the way.

    BTW No one else go out and buy one of these I like being different

    Off to go practice some more with a little MTE549  8-)

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    • #32
      Re: La Pavoni ERH New Toy

      Sorry for all the questions now Beanflying, but how many shots can you pull on your post mellenium before overheating, if overheating at all?

      I would agree with your earlier postulating that it is all the brass in the group getting hotter and hotter that leads to the burning. After all the water in the boiler is boiling, and the machine relies on that water cooling along the way to the grinds, but as time goes on with mine that cooling does not happen as the group becomes just as hot as the boiler after a few shots.

      I can clearly see how a teflon gasket between boiler and group can keep the group cooler when not pulling shots, but does it do much if you pull shot after shot?

      thanks.

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      • #33
        Re: La Pavoni ERH New Toy

        Pulled 3 back to back doubles into 6 single Lattes including milk steaming. PF and basket rinsed in warm water between pulling shots and I had one of the last pair and didnt seem bitter so I guess it was running ok for temp. Total run time from switch on cold to finish was only about 20-25 minutes I guess so the heat wasnt really a problem I guess. After this sort of session the Pav needs a refill anyway so the steam get bleed off top opened and more water added so this will sort of reset the temp thing.

        Hottest shots have been when I have left the Pav on and made myself 2 coffees over maybe an hour to get the bubblig mentioned earlier. My normal method is switch on make a brew then switrch off, then flick it back on before I make another later so heat buildup is not a problem obviously.

        If you were only to make espressos and leave the Pav on for a few hours you would finish up having to wrap the group in a damp cool towel, run the handle under cold water and wrap the boiler in an ice vest I think

        The key thing is that these machines are not built to be left on but if you do there is a cheat of sorts. Every machine I have either seen, played with or read about seems to have quirks to live with.

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        • #34
          Re: La Pavoni ERH New Toy

          Just been looking at the exploded view diagram of the post millenium...and as a vague memory in my head was describing to me...there is a teflon sleeve inside the group head with the idea that this will assist keeping out the high temp of the group from the brewing process. This is the piece I have heard others say is not as effective as they had hoped.

          Beanflying, is this the teflon piece you were always referring to, or is there also a teflon gasket between the group and the collar it bolts to? Mine simply has a sealing gasket between group and collar.

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          • #35
            Re: La Pavoni ERH New Toy

            Originally posted by 595E5A555D574252555C3B0 link=1241086698/32#32 date=1244101584
            My normal method is switch on make a brew then switrch off, then flick it back on before I make another later so heat buildup is not a problem obviously.

            Yes, of a weekend when I have several coffees in a row I simply pull a shot, turn it off....come back turn it back on to pull a shot and then off again, never letting it get above the temp of the first pull with a little cooling time in between.

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            • #36
              Re: La Pavoni ERH New Toy

              Just had a browse of the exploded view too http://www.lapavoni.com/manualiduso/esploso2.htm I had thought from the descriptions given elsewhere that the teflon was between the group and boiler but it is as you say in the Group itself. All it will accomplish is to lessen the heat transfer to the group handle from the group. Seems there is only a simple Buna Rubber gasket between the Group and the boiler (still better than the earlier ones).

              What was of more interest is the feed pipe from the boiler to the group. My initial thoughts were that the water left in this was getting superheated are most likely correct as due to the shape of it and how it comes from the boiler the top end of this pipe is sitting in the area of the boiler containing the steam so any water in this section will tend to become superheated too. So a simple purge of this wil mean you are getting water from the lower section of the boiler again and in theory cooler shots.

              For anyone interested here is the link to the Pavoni site http://www.lapavoni.com/model.asp?line=domestic&id=13

              Still had a fantastic double from mine this morning with the last of the Aricha #14  8-)

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              • #37
                Re: La Pavoni ERH New Toy

                Thank you beanflying.

                Yes, just enjoyed a fantastic double shot of Wahgi. Am on study vacation at the moment and more study = more coffee so the pavoni is getting a workout.

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                • #38
                  Re: La Pavoni ERH New Toy

                  I read on a vendors website that the Pavoni requires a special screwdriver bit for some screws (apparently the drip tray screw which holds the ABS boiler base on is one).  They sell the specific bit, but Im wondering if this is something that a home user would ever need.  I also dont know if this is for the current models or the pre-millennium ones.  What do Pavoni users know about this?

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                  • #39
                    Re: La Pavoni ERH New Toy

                    It is a Pinned Torx Screw like the pic below. Bits for these fasteners are pretty easy to get at most hardware or Auto shops if you need one

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                    • #40
                      Re: La Pavoni ERH New Toy

                      Thanks, beanflying.  Is this one of those things that should be in every Pavoni owners cleaning and maintenance kit?

                      Comment


                      • #41
                        Re: La Pavoni ERH New Toy

                        The first time it comes out will be the last time  [smiley=evil.gif] it is a NON Stainless fastener in a wet area. Any machine manufacturer who shows so much care elsewhere in materials choice but so little care on an item like this needs a small kicking.

                        Small aside to this between uses I leave the plastic drip tray insert at 90 degrees to allow this area below it to keep free of moisture and corrosion.

                        Item will be replaced with a metric button head (standard allen key)  item. Things like this and the square headed bolt for the Silvia shower screen really make me wonder sometimes  :-/

                        Borrow one of them from someone head to an engineering supplies or dedicated bolt place and buy a stainless one with a standard head and do any others on the machine while you are going  .

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                        • #42
                          Re: La Pavoni ERH New Toy

                          Thanks.

                          Comment


                          • #43
                            Re: La Pavoni ERH New Toy

                            who did you buy your new PRHs through. Im in love, and have to have one.

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                            • #44
                              Re: La Pavoni ERH New Toy

                              Do you mean PRH or ERH?  La Pavoni has several, slightly-different models (http://lapavoni.com/line.asp?line=domestic).

                              Your best bet is an Australian vendor who can provide local service and warranty.  However, if you dont mind a little risk, there are some Internet vendors in Italy.  I just ordered a PRH yesterday from espressocoffeeshop.com.  They were one of the only ones who sold 110v equipment with reasonable shipping to me here in Taiwan.  If Im not mistaken--and I very well may be mistaken--Australia uses the same electrical standard as Italy, so your choices are much wider.  You may be able to order from italiankitchenaids.com, which appears to be much cheaper.

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                              • #45
                                Re: La Pavoni ERH New Toy

                                Thanks SlowRain,

                                but I did mean the PRH, and I have been looking @ offshore online shops as even with shipphing it is cheaper than buying here. but yes there is of course risk. I have also been looking at Oz distributors, and so far their price is almost double that from the UK or Italy.

                                So if i buy the 230V version, is it a matter of just getting a sparky to change the plug? or just use one of those travel converters? I have no idea when it comes to electrical things.

                                sorry this is off-topic now.

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