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I have A DeLonghi BCO100IU espresso machine, but when I turn it on for espresso, even with a full boiler, no water comes out of the group head. I am certain this machine works on steam pressure, similar to a Moka pot. I have tried descaling with White vinegar and with descaling solution. Still, no water comes out of the group head.

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    Does it really have a boiler? I assume this machine has a pump and a heater. – MTSan Nov 17 '17 at 7:10
  • The instruction manual that I found online refers to a boiler. – FrenchDavid50 Nov 17 '17 at 10:46
  • @FrencDavid50 I see. Mostly this kind of machines for end users don't have boilers. – MTSan Nov 17 '17 at 15:42

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