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No water flow through the group: Breville BES900

SystemSystem
edited September 2012 in Espresso Machines
[color=rgb(51, 51, 51)]No water flow through the group on the BES900 ?

Breville have had some issues with o-rings as used for the main coffee solenoid as in flow and dump path.

The symptoms are "No water flow through the group"  or a  "loss of flow through the group "

As I understand it they have tried a number of batches of o-rings and in an effort to put the problem to rest for once and all.  They have decided to go with a new gasket that covers off on the whole mounting face of the coffee solenoid.

This effects all models and depending on any number of other variables may or may not be evident, but it is a known problem.


I am aware that some have had to have their machine in 3 times already and with any luck; the latest fix will solve this particular issue.


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Comments

  • LacehimLacehim
    Is there a product recall on this issue AM?
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  • shape_shiftershape_shifter
    I haven't noticed either happening with mine 'as yet', I do occasionally do a shot into measurement cup and it's always close to the mark in the time given and of course accounting for other variables. That's ok if need be it will be a great machine for OH to pull apart once the lever gets here, shit where did I put that money tree!!!
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  • pcrussell50pcrussell50
    AM...with a prophylactic eye towards heading this off before it causes me troubles,  I removed and inspected my 3-way valve today.  As my machine is more than a year old (and off warranty being a 900xl), with no warranty to void,  it was time for a look inside. The 3-way of course had o-rings.  All looked quite good with o-rings still supple and clean,  but  Now I'm no stranger to cutting my own gaskets, but I wonder we what Breville is using for gasket material?  Paper automotive? buna-n? Nitrile?  Other?  And what thickness? 1mm?  Perhaps 1.5mm? -Peter
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  • FreshCoffee2FreshCoffee2
    Or you could put it back together with new o rings and wait for it to break before fixing it. Or instead of using / inserting gasket material, you could still use the proper o rings AND try adding a thin (emphasis on *thin*) smear of heat proof silicon to the flat surface of the solenoid base, but so as not to interfere directly with the o rings (just to go up to them) when its all tightened down on refitting..... 
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  • pcrussell50pcrussell50
    Are you a mind reader?  :)  That's pretty much what I did.  Except I re-used my old o-rings.  They were in such good shape, still supple, not dry, not deformed.  And I used a thin layer of dimethyl silicone grease on the flat-to-flat interface between the base of the valve, and machined pad it sits on. In any event, I like to be prepared for all eventualities.  While I'm perfectly happy to keep going on trouble free like the last year has been, I do not take lightly Breville's research into the problem.  If they have figured out something better, I am inclined to try it too.  Although I'm not feeling as if it's an emergency must-do-now kind of thing either as my machine has been working perfectly for my entire 13 months of ownership, and from the look of my particular set of o-rings, it will go another year without o-ring failure. best, peter
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  • UNMUNM
    Anything that uses o-rings AND a gasket is a tad suss to me. They both have their place, but I would take some persuading that both together are required.
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  • conikalconikal
    on 1358682604:
    Anything that uses o-rings AND a gasket is a tad suss to me.
      Did someone suggest using both together ??..i didnt catch that. "O" ring and silicone compound is not unusual.
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