Question about Saeco Incanto Coffee Maker

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Prime indicator always flashing after 3 seconds (saeco incanto classic)

I have a saeco incanto classic and when using the stream to prime the machine the pump stop after a few seconds and the prime indicator flash althought that hot water is coming **rmally from the stream wand (the same when making expresso). I suspect that one of the two thermostats on the boiler is **t longer working, and that because ** decrease in temperature is detected, the micro processor thinks that ** cold water is coming from the pump. Is this right? and where can I buy these thermostats?

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  • naphtes Mar 10, 2008

    Finally I found the wiring diagram of the machine at
    and what I though to be an electric valve is actually a flowmeter
    so I suspect now that it is the faulting part

  • naphtes Mar 10, 2008

    probably my first message was a little bit unclear,
    after switching on the machine, it perfectly works
    (expresso, or stream wand)
    flow, pressure and temperature are correct
    and after a few seconds it stops and the prime indicator flashes

  • naphtes Mar 10, 2008

    the flowmeter is in the cold water pipe
    between the tank and the pump



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Sounds like thermostats...are shot..will need a model number to help you out.

Posted on Mar 10, 2008

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  • Patrick Michaels
    Patrick Michaels Mar 10, 2008

    hmmm..well..that flow meter only measures rate of the heated product, not it's relative temperature..and you do need a certain pressure to be maintained. are all the seals apparently good on machine? check all the connecting parts, visually

  • Patrick Michaels
    Patrick Michaels Mar 10, 2008

    ahh..well..then..thank you..that does indicate a flow obstruction, and the flow meter, may in fact be the case. what I'm unsure of is whether the flowmeter is in the path of the steam, or simply in parallel, monitoring it. You have the schematic, What does it indicate?

  • Patrick Michaels
    Patrick Michaels Mar 10, 2008

    ok..well..then, that would qualify as a potential obstacle, and can easily jam/clog during operation.

    you may want to see if you can find a part number on that flowmeter, before ordering online, or disassembly.



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