Results 1 to 2 of 2

Thread: Rancilio S10/DE overfilling

  1. #1
    Junior Member
    Join Date
    Mar 2008

    Rancilio S10/DE overfilling

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight

    Ive been very happy with the S10/DE machine I bought a couple of years ago, but now I have a problem with the filler. Even though the boiler is at the MAX mark and the water is touching the sensor the fill valve periodically turns on and off. I can hear it during the night - every few hours is will start clicking on and off a few times. By the morning it is overfull, about 1cm above MAX.

    What is the most probable cause of this fault? Does the sensor metal develop a non-conductive film over time and needs cleaning? Or is it likely to be an electronic fault, possibly noise conducted in from the mains? Is it possible for the valve to open without being activated if it is worn or during a period of high mains pressure. I do have a pressure regulator, but I also know these are useless at regulating pressure when there is no flow. I would appreciate any help in identifying the cause of this.


  2. #2
    Senior Member
    Join Date
    May 2008

    Re: Rancilio S10/DE overfilling

    maybe the probe is scaled up? Id pull it out and clean it up. Might not solve it, but a good place to start I think.

Similar Threads

  1. Boema Single Group Manual fill..... overfilling?
    By OCWEB in forum Brewing Equipment - Pointy End ($1500-$3000)
    Replies: 1
    Last Post: 20th March 2013, 05:04 PM
  2. Rancilio Z9? Rancilio VM 3 bolt (Procon) external pump specs
    By ausdb in forum Brewing Equipment - Extreme Machines ($3000+)
    Replies: 6
    Last Post: 4th June 2012, 01:38 PM
  3. Replies: 15
    Last Post: 13th July 2011, 10:55 PM
  4. Replies: 11
    Last Post: 5th July 2010, 08:46 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts