Breville Dual Boiler - fixing leaks and other maintenance - Page 10

#91: Post by **lancealot** » January 12th, 2020, 11:51 pm

Thanks Bhennessy. I'd be nice to have those codes.

January 13th, 2020, 9:08 am

I found the page - BES920 error codes Here is the text in case the web page goes missing... The site has some good DIY repair info as well - BES920 repair info

THE BES920 records 13 fault conditions and stores them in memory until the machine is reset. These fault flags are useful for diagnosis of failures.

To enter the Fault Log.
1. Turn the machine off on the control panel.
2. Hold the "one cup" and "two cup" button simultaneously for 4 seconds then turn the machine on.
3. Once in the service menu, press the "menu button". This displays the current cup count divided by 10.
4. By pressing the menu key again the user can scroll up the error codes from 1 to 12
5. Reset the error flags my pressing "manual" button when "ErSt" is displayed.

Error Codes

00 Steam Boiler NTC Error
01 Steam boiler NTC Error
02 Coffee boiler NTC Error
03 Coffee boiler NTC Error
04 Group head NTC Error
05 Group head NTC Error
06 No Water In Steam Boiler
07 Water over flow condition in steam boiler
08 Coffee Water Flow Failure
09 No water in Coffee Boiler detected at Boot Up
10 Coffee NTC Over temp
11 Steam NTC Over Temp
12 Goup Head NTC Over Temp

Also
"NTC stands for "Negative Temperature Coefficient". NTC thermistors are resistors with a negative temperature coefficient, which means that the resistance decreases with increasing temperature. They are primarily used as resistive temperature sensors and current-limiting devices."

#93: Post by **lancealot** » January 13th, 2020, 12:13 pm

This is awesome. Thank you.

January 21st, 2020, 5:56 pm

I found this oring clip at Lowes in Canada. Note it is not the exact same size but might work in a pinch - I tried it on my machine. Biggest issue I see is the gauge is slightly smaller so the fit is a bit looser.

It also might help one us of source the correct size clip.

Here is the Hillman site. I wonder if this slightly higher gauge clip would work? Hair pin clip .047 x 19/32

#95: Post by **pcrussell50** » January 21st, 2020, 8:44 pm

bhennessy wrote:I found this oring clip at Lowes in Canada. Note it is not the exact same size but might work in a pinch - I tried it on my machine. Biggest issue I see is the gauge is slightly smaller so the fit is a bit looser.

I found a thinner gauge hairpin clip at the local mom'n'pop hardware store as well. The radii of the bends were close enough though. I clipped the stainless elbow from one of my spare ball valves to the ball valve with it. Looks like it will work. It's primary purpose is to keep the fitting from pulling out, and for that, it will be fine. The thicker gauge might force the fitting into a little more compression of a fresh o-ring.

-Peter

#96: Post by **nindustrial** » January 27th, 2020, 5:11 am

At the risk of a slightly off-topic question, some folks on this thread have mentioned never descaling since they're using a water recipe (potassium bicarbonate variant). Do you still drain the steam boiler every so often (as some other owners have suggested) to remove any mineral build-up, or is this also not really needed since you're using a distilled water recipe? I'm trying to ensure longevity on my new-to-me refurb unit...

#97: Post by **IMAWriter** » January 27th, 2020, 12:11 pm

I'm trying to ensure longevity on my [b wrote:new-to-me refurb unit[/b]...

Dang...so YOU'RE the one keeping me from a refurb????

Congrats! I've been on the list about 5 months. How long did you wait? APOLOGIES to the OP for this off topic transgression.

Nitin, flushing the wand...and the steam boiler is aways good for assuring there is no milk residue. To be safe on your refurb, I'd prolly do a near complete purge of your first steam boiler fill. I'm just guessing...
Enjoy your BDB!!!

January 27th, 2020, 12:15 pm

nindustrial wrote:At the risk of a slightly off-topic question, some folks on this thread have mentioned never descaling since they're using a water recipe (potassium bicarbonate variant). Do you still drain the steam boiler every so often (as some other owners have suggested) to remove any mineral build-up, or is this also not really needed since you're using a distilled water recipe? I'm trying to ensure longevity on my new-to-me refurb unit...

I just posted up what I do about steam boiler draining over in the general BDB owner's thread, "Five+ years on": Breville Dual Boiler, five+ years on

HTH

-Peter

#99: Post by **BaristaBob** » January 31st, 2020, 6:55 am

Well after 3 years and 7 months my machine developed a leak. Heard a sizzle sound after warm up the past two days, so I popped the top. Before this the only r&r I've had to perform was a steam valve replacement along with the o-rings to and from it. This leak was the tube from the steam boiler to the brew boiler. The end at the steam boiler had the two o-rings and the washer, the other end just one o-ring. All went well on the replacement except the little metal sleeve fitting fell into the boiler! Don't have those so went without. Will this little piece of metal hurt anything? Is this going to cause a long term problem for the end of the tube inside the boiler?
Also upon starting up the BDB to check on my job, all went well except one of the electrical connectors on the steam boiler started spritzing water, so I replaced that one...the AFLAS blue 010 o-ring. I did not have one of these, but I had that size in red silicone. Where do you buy these?

#100: Post by **Jake_G** » January 31st, 2020, 7:54 am

You need the insert.

The insert flares the PTFE tube just a bit and holds the brass collar on. Without the insert, the hair pin will hold the collar and the O-rings inside the boiler fitting, but you can grasp the tube and pull it right out!

Aflas O-rings are easy to find on Amazon. I don't have that size on hand, but they should be no problem to acquire. Also, the silicone will last a few hu ears, so there's no harm in using one for now.

Please open her back up and get that insert. Ever dropped a guitar pick into an acoustic/hollow body guitar? Shake, baby, shake!

Cheers!

- Jake