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About ajohn

  • Other groups 2000 Club
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    S. B'ham
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    Too Many
  • Occupation
    Retired design engineer

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  1. I was making the point that I understand the boiler is stainless as well so if the bolt suffered from this problem the boiler will as well. Then later in the thread yet another dig at Dave. He might be thinking whoopee a trip to Italy not boasting. What he does is looks at espresso machines for decent design features. You really expect him to get involved with specifications of items like bungs and gaskets. That area is down to the manufacturer and in this case it seems they got it wrong probably down to minimising the cost of the machine which is the whole idea of it and why it uses some one else's boiler. That I would assume is also used in another brand of espresso machine that has the same problem if the element fails and will also have the same problem if the part becomes unavailable. And as to the parts - do you have them in your hand or are you clairvoyant. John -
  2. Another BES900 video. The part he is replacing has gone. Looks like it's solid metal now attached from below. Their machines do change over time. Only when they need to. The 3 way drain pipe I menioned is securely attached at the far end. Dedicated fitting to take 2 drain pipes held in place with screws. Pipes fastened onto it with cable ties. Long reach screwdriver could reach - a magnetic bit would be a very good idea. Their screws often aren't very magnetic. John -
  3. If the brew boiler doesn't drain after their suggested longer push of the 1 cup button a few things are needed - bonnet stay for the lid. This one is about 35cm long. Follow the manual to descale. A brief push of the one cup moves to the next stage - boiler fill, heating and a 20min descale. Place in a mess. Just had some plastering done were the machine goes. It would be wise to have some BS 007 sized silicone O rings about. The brew boiler is central. The 2 front connections to it are level probes, larger dia and 009 O rings. They seem to use one for negative and the other for positive and sense current flow between them rather than the actual boiler forming one side. Remove one of the rear 2 two clips, left is probably favourite and pull out the pipe. The boiler should then drain. If not something is blocked. The O ring will probably stay in. Rather then simply pushing the pipe back in as I did damaging it prise it out with say a cocktail stick. Best fit new ring really. Fit the ring and push the pipe back in fairly firmly and refit the clip. The rings just slide on. I then moved the pipe up and down gently to make sure it was seated well but probably a waste of time. Looks like they use diameter to seal. A bit of water on the ring might be a good idea. Then tap the one cup button to fill the tank etc. Still not entirely sure why it wouldn't drain. Shouldn't be sludge in the 3 way solenoid now but may be down to airlocks in the 3 way drain pipe to the drip tray. Something else where water sits that will evaporate. I may have rooted it against the ptfe pipe when I cleaned the solenoid so have now switched it to the other side. Not sure if the entire pipe can be pulled out. Sage may have fixed the end in the drip tray some how. There is a lot of attention to detail in them in all sorts of areas - like the stainless spring to make sure the pipe doesn't kink. I'm going to try a straw brush to clean that but just unclipping the pipe from the solenoid may have allowed the boiler to drain wouldn't surprise me actually as I didn't check for water in it. I removed the tie wrap Sage use at the solenoid end and replaced with one of the clips from this kit. Might need other sizes elsewhere https://www.amazon.co.uk/gp/product/B07G2YRL9J/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 This video shows how they used to have to be descaled. Interesting that the triac board is in the same place leaving space to add a grinder later. No need to remove the back panel but the prop is a good idea to prevent straining cables. Some parts of the machine are live when it's plugged into power so be careful with the solenoid and probably the heaters. The red item in the shot above is one side of a heater. I'm not bothered about items being live providing I know where they are. It's pretty obvious which ones may be in this machine. The solenoid connections are insulated so no problems with those - obviously turn off at the socket if that is going to be removed. I find the inside amazing, especially the wiring. Chinese labour must be incredibly cheap. I'd suspect they might update at some point and start using other methods as some of the wiring could be done a hell of a lot quicker. The button wiring reminds me of car dashboard wiring nightmares. John -
  4. I'ts not buzzing any more but may be able to replace it with a Parker. F1 time so off for a while. John -
  5. I'm pretty sure I have found where the fine sludge came from. But also it was due a descale and I noticed that the brew boiler wasn't draining reliably. The solenoid buzz interfered with the last descale. So Initially I stuck to when the machine told me to back flush and when to descale set by the test strip. I decided to back flush more often even though the shower screen I use seems to limit what goes back into the machine. Just seemed to be a good idea. I noticed that after descaling that there was still loud bubbling noises so did 2 on the trot also because I wondered if the brew boiler had really drained on the first one. That cured the bubbling noises and steam was available earlier. More less at the same time brew was ready rather than a bit after. I can't be sure I have always fully drained the brew boiler so in future will empty the drip tray after draining the steam boiler. Or try doing it the other way round as it's easy to see that steam has drained. When their engineers say descale once a month they may be correct. I've seen mention of every 2 months on a USA site. The sludge I cleaned out of the solenoid was very fine and pale in colour and very little of it. It could just be wiped off. Everything in the machine including the solenoid gets pretty hot so any standing water in it will evaporate. I'm going to do a daily clean water back flush with an empty pressurised basket to see if that helps. It took over 12 months to get like this and a lot of shots and heating cycles - something getting up to 1700 of them. B'ham gets very soft water but as a man on here once mentioned they sometimes add water from other sources but anytime i have tested it it's always been low. Need to take some photo's before dealing with a draining a problem brew boiler. John -
  6. At least the "descaler" is unlikely to have caused grief. I don't have the machine so description doesn't mean much to me. I was curious about what tripped as it might give an idea which part may have problems. One thing that might cause it is a heater element failing.You'd really need an insulation tester to check it but if the problem persists try disconnecting the heater connection on the boiler and try it switched on like that. You could also try touching the live to each of the connections in turn to see if that trips the rcd. Either one probably will if it's failed. The machine's earth connections will need to be wired up. Don't blame me if you electrocute yourself but that wont happen with a bit of care and the whole idea of 30ma and a fast trip is to reduce death rates from the mains. I understand these gaggia's are fine with puly descaler - not with some others due to aluminium. John -
  7. https://www.sageappliances.com/uk/en/parts-accessories/parts/sp0020077.html £3,95 John -
  8. A photo showing which and where might help. Did it trip the earth leakage trip also called RCD usually says something like 30ma on it Or the power one that might have a number like 30 on it but amps. What did you descale with? John -
  9. ajohn

    Mattress Help

    I've been using one for over 2 years now. Feels like it has a lot more to go as well. It's softened a little but not much. My wife's side usually lasts longer so at some point I usually do a 180 degree rotate. Don't think they actually mention what's in them. I prefer a firm bed that also supports fairly evenly. It does. John -
  10. I put several kg of beans through the same basket but on a Barista Express. It would appear that the innards of the Bambino are functionally very similar. 3 way and flow meter. No way of knowing what else they may have changed. The BE could brew at 15bar and the grinder on the BE could cope with that easily. Dose was 9.4g if I remember correctly but that is with a very light bean. Can't remember what the razor tool left but always used that as a basis and then increased it very slowly. At some point the puck would stick to the shower screen and 1 or 2/10 g on top of that prevented this from happening. Any more than that weakened the drink. The shot volume didn't alter much while this change was being made because I just pressed the button. It turned out that the default setting of the double button was about right. Brewing at 15bar just at the point where little water was going out of the over pressure valve. Easy to tell on the BE as they dump that water into the drip tray. They might not on the Bambino. Ratio with this bean was over 3. Time somewhat over 30 secs. Don't ask me how much over as I didn't care, only taste matters. I'd guess mid 30's+. Ratio I use on the DB is lower brewing at 9 bar but it needs more coffee. Times much over 30sec on that wreck the taste. The OP used a ratio of 4.5 in the last video. It seems that the Bambino can brew at 15bar but that's just an odd comment from some one. My experience suggest that higher ratios can be used at higher pressures but that seems high to me too. I did use a commercial espresso machine bean on the DB where that wouldn't be entirely out of order but no fresh roasted at all. Can't recollect any fresh on the BE needing that either and always tuned for the taste beans are said to have. Sage reckon 10g max on this basket by the way. Maybe dense and light roasted beans. I will hold more than a commercial single in fact their dose would probably result in a rather wet puck. Pucks may not stick in the same way on a Bambino. Wish they did on the DB as what that does in this area is a pain and the razor tool for is no guide at all. John -
  11. You'll probably find that the bluestar one doesn't come with the plastic bit used to prevent the mess that happens without it. Don't ask me why I know. The rancilio baskets fit Sage portafilters but a 58.5mm tamper doesn't fit those. And don't buy the dual wall Sage single. It has problems on Sage down to it's usable fill height on them. John -
  12. The Sage one should be ok providing it's used on another 58mm portafilter machine. The double holds circa 17g on a Sage but could probably be more like 15 on other machines. Best do a coin test to find out as even on dual wall as Sage call them fill height matters. John -
  13. LOL I'm sure you know what I mean. Drain taps ala sage? I'd say unlikely. John -
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