Breville Dual Boiler ball valve detail, pics - Page 11

Need help with equipment usage or want to share your latest discovery?
DaveB
Supporter ♡

Postby DaveB » Mar 15, 2019, 1:42 pm

I've been wondering if turning up the boiler to the max of 185° hastened the leaking of the valve. Mine started leaking at 3 months with the occasional drip, and at around 10 months the dripping increased to approx one every 15-20 seconds or so. More recently it has changed to a constant sputtering which can be heard across the room. The video was shot 5 minutes after unit was turned off:



Anyone else experience this?

I finally called Breville support the other day, and they are sending me a box for return and emailed a pre-paid shipping label. FWIW, units purchased at Costco online are covered under Breville's warranty, aside from the fact that Costco would probably cover it indefinitely in any event.
Von meinem iPhone gesendet

pcrussell50

Postby pcrussell50 » Mar 15, 2019, 3:37 pm

Definitely take advantage of the warranty while it's offered. And do it through Breville. Believe it or not, they do make little changes over time. If you just returned it to Costco, I fear Breville would have less solid info as to exactly what the problem was.

In any event, over the long haul, it appears these valves are user-resealable. Right now, in my current nearly new BDB, I'm using the nastiest looking ooold valve you have ever seen, donated to me by another user who had replaced it, and it's not leaking a drop.

-Peter
LMWDP #553

mrjag

Postby mrjag » Mar 15, 2019, 5:43 pm

DaveB wrote:I've been wondering if turning up the boiler to the max of 185° hastened the leaking of the valve.

I have my steam boiler maxed out without any issues.

pcrussell50

Postby pcrussell50 » replying to mrjag » Mar 15, 2019, 6:06 pm

Time, heat and pressure will always prevail. The good news is, it's an easy fix. Windshield wipers become brittle and streak. Brake pads wear thin. O-rings and PTFE seals eventually leak. No matter the brand. It's all part of espresso life.

-Peter
LMWDP #553

DaveB
Supporter ♡

Postby DaveB » Mar 15, 2019, 7:48 pm

pcrussell50 wrote:Definitely take advantage of the warranty while it's offered. And do it through Breville. Believe it or not, they do make little changes over time. If you just returned it to Costco, I fear Breville would have less solid info as to exactly what the problem was.

Agree 100%. I could easily return the BDB to Costco for full credit, but that seems counterproductive and wasteful; also the more leaky steam valves get sent back to Breville, the sooner they're likely to address what appears to be the only real weakness with the machine.

It's great to now know how easy an out-of-warranty fix is! Thanks to all have contributed efforts toward the cause. The BDB is a keeper!
Von meinem iPhone gesendet

pcrussell50

Postby pcrussell50 » Mar 29, 2019, 5:02 pm

Just a short update on my easily repaired, natty old ball valve from three weeks ago... And? Still going strong. Hasn't leaked a drop. Nice smooth friction on the handle so the seals have sealing pressure against the ball.

Breville Dual Boiler ball valve detail, pics

-Peter
LMWDP #553

Bacek

Postby Bacek » Apr 03, 2019, 1:55 pm

For some time I was planing to disassembly this valve because it was slightly leaking. Your post with pictures was a trigger to do it. But I wanted to do it more gentle way you did.

Everything what is needed is wrench no 14 (metric), Allen hex key 6mm, something to hold the valve (vise, adjustable spanner, wrench 15).
Wrench 13 could be used to open other side of valve, but I don't thing it's needed.

Image

So this is my set of tools, I have used 14, spanner and allen key.

First using 14 and spanner unscrew one side, to be on safe side valve could be warped with thin leather before mounting it in spanner or vise.
My spanner don't have any sharp edges and there was no need to do strong grip in my case so I skiped it.

Image

then using Allen key open second part

Image

and we are ready for cleanup, this is completely dismounted but only left part is required

Image

I have cut silicone gasket (ID 6mm, OD 9mm) to add some additional tension and placed it under Teflon one from one side only.
It's made from silicon cupcake form. It's about 0.6mm thin and probably shouldn't be thicker.

Image

After mounting everything back, valve still looks stunning.

Image

DaveB
Supporter ♡

Postby DaveB » Apr 03, 2019, 2:05 pm

Wow, that pictorial is about as good as it gets. Thanks for posting!
Von meinem iPhone gesendet

Bacek

Postby Bacek » Apr 03, 2019, 2:25 pm

For me scraping whole large part only because some small, few cents worth, piece broke is illogical.

Where are ecco fanatics when they are actually needed. Molding this valve took lot's of energy and producing a seal or actually only descaling valve is inexpensive and environment friendly approach.

Any way originally I thought this part is stainless steel unfortunately not, and part of ball already lost its coating so probably after some time I'll end up swapping it to steel version.

Ok, now it's time to check on hot water valve.

pcrussell50

Postby pcrussell50 » Apr 03, 2019, 2:41 pm

Great pictorial. But two of my four valves would not come apart using the 6mm hex key. The thread locker was too tight. I needed heat from a torch, to break the thread locker.

How did your repair work? Any leaks?

-Peter
LMWDP #553