Tweet
A replacement machine new for $710 on fleabay looks like a better proposition, i'm not up to messing around with boards and caps.
Thanks folks for the advice
Thanks folks for the advice
-
-
Thanks for this. I will pass on to the bloke who thought the failure to pre infuse might have been caused by electrolytic cap failure.Originally posted by Lyrebird View Post
So you're best guess as to the cause of pre infusion failure is that Breville's pump control scheme is hard on the pump?
-PeterComment
-
That info came from Noidle, he knows far more about these things than I do.Comment
-
Has anyone seen it mentioned what size the blue o-rings are from the steam boiler probes? I have replaced the orange o-rings that are double stacked on the ones that have the little booties. But I have another probe on the steam boiler that is sputtering a little on warm up, and I inspected the o-ring on it is blue and bigger than the 007 size referenced here.Originally posted by pcrussell50 View PostComment
-
That is one I do not have. Having had a BDB since it's USA launch in late 2011 and having been active on the forums since then as well, I can say that failure of those big blue sensor o-rings has been rare. I have not had one fail either... So I when I pulled one out for a look, I failed the community by not measuring it out for size. It just escaped me to do so. Now I wish I had. I will add one more anecdote... Breville has finally replaced my -900 with a brand new -920. Before I ever even plugged it in, I opened it up to put in a brass OPV and pump. It had brand new designed fittings where the PTFE tubes are. No more clips and o-rings. So Breville is trying to keep up with durability issues. But no changes in the area you are having problems with... Where the sensors are.
-PeterComment
-
My bes900 finally gave up on Saturday, no pressure at all. When i press the brew button it just makes a bubbling noise internally and a very slow sound like the pump is barely revolving.
Ordered a new ULKA EP5 pump on ebay for $48 will see if it does the trick.Comment
-
Good luck...Comment
-
The pump would be my best guess, too. Fortunately, it's pretty easy to replace. Might want to have handy a couple of small plastic zip ties because the tubes are secured to the pump with them, and there is a wire bundle you might want to shift out of the way, that is held by zip tie, and you will want to put it back in place when you are done.Originally posted by Janus View Post
Some guys in the -920 thread who sounded pretty knowledgeable were saying how Breville's control scheme for reducing power to the pump for pre infusion is harder on the pump than just letting it run at full power. A worthwhile tradeoff if you ask me, to have that kind of control over pre infusion that we get. Pumps are relatively cheap and easy to change.
-Peter
-PeterComment
-
I've got zip ties ready, hopefully the swap over is pain free.
I tried brewing a coffee with my backup Gaggia classic and had a pretty poor tasting result. Rather than mucking around dialling it in, i've reverted to a stove top percolator which is doing a good job.
Hopefully the solenoid valve is ok, starts getting a bit more expensive at that point, would be a bummer to buy a pump, then a solenoid valve, and then find out it's something busted on a circuit board (which there's no way i can fix).. New BES900/920's can be had on ebay delivered for under $800.Comment
-
I doubt it will be totally pain free but here's a few tips that might make it easier:Originally posted by Janus View Post
Once the circuit board etc. is out of the way, first remove the two screws that attach the pump's upper rubber mount to the chassis. This gives greater maneuverability to remove the OPV. There are access holes in the outer layer of the chassis that you can fit a screwdriver through.
Instead of struggling to unplug the wires with the pump in place, remove the white wire from the steam pump. This will allow the pump to be lifted much higher and give clear access to the connectors.Comment
-
Ok I’ve pretty much got the new pump in, the video tutorial I watched had a new resistor and wires already on the ulka ep5, however I had to reuse the resistor from my old pump.
The crimp connectors on the pump aren’t holding very firmly, might touch some solder to fasten..
One snag, this fell out of the bottom, and I have no idea where it came from. Has a slightly flat section not perfectly round.
Anyone?
Comment
-
No luck with the new pump, machine still doesn’t do any pre infusion and there’s no primary brew pressure either, even though I can hear the pump running.
Makes a lot of bubbling noises and that’s about it.
It trickles a bit of water out, however if I use the blind filter for back-flushing I’m only seeing 1 bar.Comment
-
IMS, that flattened disc goes into one of the four rubber pump mount screw areas. Just adds a little rigidity.
So sorry the new pump didn't work. The repair gurus a few posts up from early August seemed pretty confident that a new pump would work. With mine, my pump would still make primary pressure, but would no longer pre infuse. And changing to a new pump didn't fix it either. In the USA here, Breville offers a "repair or replace" program for $350 USD, which includes post both ways. They fix your machine replace the o-rings, bring the firmware up to date, descale, and several other things, then send it back to you. If they can't fix it, they replace it with a factory refurbished machine. If they don't have any, they replace it with a brand new machine. I won the lottery and got a brand new one. A -920 this time, because I don't think they keep -900's around any more.
Depending on how handy you are, and based on reading the early August posts from the repair gurus, the pump control resides on the main board and one of them provided a schematic. Might have some luck there, as long as it's not all surface mount, (which I don't know because I haven't looked).
Keep us informed. This seems to be happening more and more to those of us with five year or older machines and I have become the default news spreader to some of the USA/CAN forums. And I'd like to put out the results of your issue as well, once it's resolved one way or another.
-PeterComment
-
Thanks Peter, sounds like you had exactly the same issue as me, however I let mine get to the point where the primary stopped too.
Given that Breville declined to repair, but replaced yours, perhaps this isn’t an easy issue to fix. I’m happy to replace basic parts however if there’s an issue on an electrical board I’m not confident I can repair it.
A new solenoid valve which could be another problem potentially is $130, I purchased the machine not working quite cheap and somehow managed to get it working with little more than a jiggle. If I knew for sure what was needed to get it working I might try, however this might be the end of the road for my BES900 unfortunately.Comment
-
Gday everyone, I’m in desperate need of some advice with my BES900.
Recently I had a water leak coming from inside the machine and found it was a busted o’ring on hose going into the main boiler. I replaced the o’ring and turned the machine on to test and it sprayed water for a second before I turned off the machine. The o’ring was not sitting correctly resulting in some water touching some of the electronics inside the machine. Now my machine will not turn on at all, I have no idea if there is some sort of reset I can do or if I have stuffed it. I dried it out and it has been at least 1 week before I have looked at it again. Any help would be much appreciated. Cheers, TylerComment
Comment