Breville BES900 Dual Boiler - Owners thread

[mrpcs7]

Loud buzzing noise

During a regular Cleaning Cycle, the machine started making a loud buzzing noise near the end of the cycle, and the pressure dropped to approximately 3 bars. After doing some research, I came across other people who experienced a similar problem and recommended performing an “Extended Cleaning Process”, which was essentially running four 30-second shots with the cleaning disk inserted. After the third “shot”, the buzzing sound stopped and the pressure went back up to 9 bars.


I was then able to successfully brew a proper espresso shot. However, the very next time, the buzzing sound started again. So, I performed another Extended Cleaning Process and, again, after 3 shots, the buzzing went away and the machine worked properly.


However, the buzzing is now back and the pressure has dropped. Any idea what is happening here?


My machine is no longer covered by the written warranty. It is approximately 4-1/2 years old, and I usually make one shot per day.

[dischucker]

Breville BES900 Dual Boiler - Owners thread

I've just searched through this thread but I've not found a satisfying answer... how do I fix a leaking steam wand?

The leak is in the valve I presume, as it emits a gentle hissing noise whenever the machine is turned on and a small dribble of water continuously runs from the end of the wand (30 ml per 20 min roughly - I measured it ;-).

Today I discovered I could stop the leak & hissing noise by lifting the steam handle a few mm up from the fully closed position.

This suggests the handle is now moving past the originally set "off" position. I'll try and take the machine apart and see if I can tighten/adjust/bodge the limit position so it stops at the correct place.

[Coffeejim]

I just bought a breville dual boiler with smart grinder and I have a few questions:

1. Anyone know where to get a naked portafilter and 22gm 3 shot filter basket?

2. Where in Sydney do you buy fresh roasted beans with "roasted on" dates?

3. How often should I backflush the group head?

cheers,

Jim.

[dischucker]

I just bought a breville dual boiler with smart grinder and I have a few questions:

1. Anyone know where to get a naked portafilter and 22gm 3 shot filter basket?

2. Where in Sydney do you buy fresh roasted beans with "roasted on" dates?

3. How often should I backflush the group head?

cheers,

Jim.

Others can probably suggest places in Sydney to get parts & coffee (& see sponsors area of site).

The machine will show a message during warm up saying "clean me" when it thinks you've pulled enough shots to warrant a backflush clean. I usually just do it when prompted like this.

Just keep in mind that it considers any shot longer than 7 seconds to be a "coffee", so if you're like me and run a prewarm shot before and a post-shot clean with a GH brush, then you'll be doing a clean 3x as often as Breville suggests. Which is fine by me.

[Miloolimm]

Hello All,

I'm having a problem with my BES900 which is a bit inconvenient more than anything, but after searching this thread couldn't find any relevant info.

I turn my machine on and it heats up and the temp goes to 93 degrees and I can use it fine. If I leave the machine for 15 minutes or so the temp gauge still shows 93 degrees but I know it isn't. I open the steam wand and water just drips out.

If I turn the machine off then back on the temp gauge will show what the true temperature was, usually somewhere 60-80 degrees depending on how long it had been sitting there turned on. But at this point the temperature will stay at whatever it is showing and slowly start to cool down. I cannot hear the boiler coming back on to heat up. If I open up the hot water supply water flows but there is a bit of a delay as if there is air in the line. After water comes out without interruption the boiler switches back on the machine will get back up to 93 degrees and be good to go.

I've had the machine for a while, it was one of the original shipments when they first came out. It has been back once to have the upgrade, can't remember what went wrong, it was a few years ago.

Any ideas?

Miloolimm

[inorog]

Hey Miloolimm,

I've had a similar one a few months ago - it was forever heating up - and then it wasn't stopping when it was reaching the temperature, it would go over quite often. It would also not sense when the temperature would go down below the limit, so I'd get a cold coffee.

It turned out - it was a temperature sensor which had had it... Replaced it and it has been great ever since.

I think it would be a similar thing in your case.

Ino!~

[inertia8]

My machine seemed to not be doing too well with pressure the past weeks or so, which I'd attributed to a completely new roast/variety of beans.. I kept going finer with the grind to get the extract time up to 37secs or so and still sometimes it would extract in only 20secs or so...

Well today it did not extract at all, it made all the noises, then hissing/pressure relief.. then I noticed water leaking out the back of the machine.. investigation has found the following connection is come apart.. it looks threaded but it's probably all gone brittle now.



Also, not sure what this sticky goop is on the tube in this picture... it's rather icky to touch!



I'm concerned with the colour of the water in the lines, it's a little brown for my liking, hopefully backflushing will fix that, thought it's probably time for a descale, so have decided to just drop it in for repairs and a service rather than do it myself.. whilst confident I could do it, I've got too much on to take on "another project"

[Trappist]

From Post #2871 in the BES900 Owners Thread

With the power cord plugged IN & turned ON at the wall socket.
Machine OFF
Press & hold IN all four buttons simultaneously, Menu, Arrow Down, Arrow Up, Exit. While holding them all down, press the Power button
The LCD will now be in the Service Mode
There will be a single, double or even triple digit displayed. This is the number of shots over 7 secs, divided by 10. So if you had 12 on the LCD, this would mean you have pulled 120 shots longer than 7 secs.

Hi all first post.
I see that the shot counter is a number divided by 10. The post quoted above says divided by 10 so if it had 12 on the LED screen it would be 1.2 yet when doing the calculation the author undertakes it as a multiplication equating to 120 - which does make sense.

I purchased yesterday from the Brisbane Seconds centre a 900/B machine that I was told had cosmetic damage. I saw inside there was a printed sheet stating the machine was refurbished. Gave them a call asking if the machine was refurbished. The chap said no it hasn't been used. They have run about 10 test brews/pours to validate the machine is fit for sale.

I have checked the count number as indicated and it displays the number 264. So am I correct in thinking this machine has had 2640 >7 sec pours? For if that is the case I have been duped. If it is only 264 and the number read out is not a multiple then I think it is not an overly large number of pours and can live with it. But paying $530 for 2640 pours is a second hand machine and not worth the price/risk ratio.

So if I may just confirm 264 on the LED readout = 2640 pours greater than 7 secs?

Thank you for your help.

[Javaphile]

The number displayed equals the number of shots divided by ten. So to get the total number of shots over 7 seconds you take the displayed number and multiply it by 10. So your displayed 264 does indeed mean there has been 2,640 shots over 7 seconds pulled on the machine.


Java "Math, such a wonderful concept" phile

[Trappist]

The number displayed equals the number of shots divided by ten. So to get the total number of shots over 7 seconds you take the displayed number and multiply it by 10. So your displayed 264 does indeed mean there has been 2,640 shots over 7 seconds pulled on the machine.


Java "Math, such a wonderful concept" phile

Thank you for your reply. I will on that basis return the machine.

Very disappointing to be deceived by a retailer. If they have serviced the machine they should therefore know its prior use.

https://www.yelp.com.au/biz/breville...utlet-tingalpa

[LFM60]

Thank you for your reply. I will on that basis return the machine.

Very disappointing to be deceived by a retailer. If they have serviced the machine they should therefore know its prior use.

https://www.yelp.com.au/biz/breville...utlet-tingalpa

Trappist, you could possibly print a copy of this post as evidence to bring with you.
The yelp reviews suggest the staff might need some persuasion to do the right thing.

PS. Welcome to CS.

[BalthazarG]

Hi Trappist, and welcome to Coffee Snobs!

I saw inside there was a printed sheet stating the machine was refurbished. Gave them a call asking if the machine was refurbished. The chap said no it hasn't been used. They have run about 10 test brews/pours to validate the machine is fit for sale. They have run about 10 test brews/pours to validate the machine is fit for sale.

Is there a chance the chap was just ill-informed? Given there was an attachment with the machine clearly stating it was "refurbished", it seems pretty dunderheaded for him to lie about it. Then again, his common sense may not necessarily reflect our common sense.

Now I'm not leaping to conclusions here, or accusing the retailer of being a half-brained goat. Perhaps what he meant to say/should have said was: "Yes it has been refurbished, but only due to being dinged by some careless lout on the way to our shop. Aside from that unfortunate little incident, the machine has no past history or pre-existing owner, and subsequently does not come with any tyre tread".

If it turns out the machine did have a previous owner, then he clearly deceived you about everything, and needs a good spanking.

[inorog]

Aaah - the wonderful world of "plausible deniability": did he really say that, or did he mean something else entirely different, and why not, diametrically opposed to what he really said?

[inorog]

Hi Inertia8,

That looks like one of the OPVs has taken one for the team - you may decide have them both replaced while you're there. Contact your service department and see if you can work out a deal.


Also, the "Icky brown stuff" in the pipe - that's actually just old coffee - that is (if I recall correctly) the back-flush pipe which dumps the water into the tray after you've stopped the pull. A good clean *should* do the trick - but that pipe's an "out only" pipe, it doesn't dump it back anywhere but inside the water tray.

For what it's worth - it looks quite clean inside.

[Dazzler]

Just for laughs, I did a shot count tonight, 8300 shots > 7 sec.
not bad for an 'appliance'