Question about DeLonghi EAM3400 Espresso Machine

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When I turn on the steam function a steady stream of water comes out fow a few seconds and then diminshes to a few drops when the pumps comes on every few seconds , but no steam comes out nozzle. I ha

The coffee part of the machine still works fine

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This is similar to my Saeco. i only drink black coffee so the steam function is very rarely used. When i went to use it recently got same as your description. this then set a 'blocked' code on computer which meant NO COFFEE! EEEKKK.
I used an old soft drink bottle as a resevoir to operate the machine with covers off so i could see an issues. I started at the filter , blew that out with compressed air. then hoses...do 1 at a time ...tank to filter, filter to pump, pump to heat exchanger, heat exchanger to spout (watch this one as it is steam!)
after a thorough strip and assemble i descaled and was good to go. now i make sure to use steam at least once a month.

Posted on Feb 12, 2014

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Posted on Jan 02, 2017

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Water light is on ,Water tank is full but the light stays on


If the water tank stays full it indicates that the pump cannot function properly.
Before first use, the Sirena pump needs to be 'primed'. This is indicated by the blinking blue 'water' LED. On a new machine (or a refurbished one as in my case), empty the water container first, then
  • remove the plastic water container
  • activate the small spring valve mechanism built into the bottom of the water tank.
    This plastic valve mechanism could initially be hard to depress, because the small metal spring is too strong, or the entire mechanism may be stuck altogether. Exercise this spring and the small valve a few times (ok: 10 times).
  • once the spring-loaded valve moves freely (it becomes easy to depress with your finger), the pump will have no problem activating the spring mechanism and starts sucking water out of the tank:
  • refill with filtered water almost to the top and observe the floating magnet (fill indicator) now in its UP position. You will have to refill the water after a few shots and using steam.
  • Press the ON/OFF button and open the steam knob clockwise all the way until you can hear the pump working and a steady stream of water escapes... onto the floor, or if you're smart, into a small container.
  • Once primed, the pump can operate and in turn, the machine starts heating up.
  • Now you can make your espresso, and even try the steam wand after it shoots out a short stream of water. Once you have steam coming out of the wand, you can start getting serious about making your brew...
I believe that a lot of problems, like failure to heat up, machine doesn't work, etc. are caused by this small spring mechanism being a little hard to operate initially. The Sirena is programmed to operate ONLY if it can extract water out of the tank.

Try it and enjoy the superb cappucino, espresso, etc. -the beautiful Sirena was born in Italy and is a little temperamental, but will be your best friend with a little help in the mechnical department (Think FIAT). By the way: I am a German engineer -no kidding.

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1 Answer

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1 Answer

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1 Answer

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1 Answer

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Did you try to prime the wand by running water through it for 4 seconds? After you do that it should work fine.

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