I seem to be getting closer to the bottom of this slowly but surely. I took my unit in to my local espresso repair shop. They are not an Expobar dealer but very knowledgeable. Here's what they suggested.
They thought the steam pressure started to increase. I keep the steam pressure at about 0.75 Bar. Somehow this may have increased and we're not sure why. It could be due to a bad pressure switch (the thing in the circle) but not sure. Once that steam pressure built up, the pressure relief valve would have triggered. This is quite a violent experience and does give a loud bang. That could explain why my son said he heard a loud bang during the night. It could also explain how some of the cups on top of the unit got knocked off. What it doesn't explain is why my son didn't let me know about the loud bang. C'est la vie. Now the unit is filling up with super hot steam. That *could* have melted the hose but not sure. What it could not have done is split the hose on its complete length. That's still a mystery. Another thought he had was that some how, super hot water from the steam boiler may have 'backflushed' into the tube which could also have melted it. He wasn't sure if the Brewtus had some kind of check valve to prevent this from happening. I'll stay tuned. He also had a great suggestion for plumbed in machines. Create a buy a tray which the entire unit sits into. In that tray, drill a drain hole to allow water to escape and feed that to some kind of drain disposal. That way, if anything in the unit does fail, the water simply drains harmlessly away. Unlike flowing onto the floor and causing damage, which ocured to me. -- You received this message because you are subscribed to the Google Groups "Brewtus" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/brewtus. For more options, visit https://groups.google.com/groups/opt_out.
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