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Dripping Bianca

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#81 ·
28 minutes ago, DavecUK said:

It's hard to tell from your video but at 1m:06s you focus on a fittin on the steam boiler, is the tube of this one the one showing evidence of leaking, or is it the one to the right of it you focus on later. I think it might be the one you focus on first and if that's the case you need a new safety valve. If it's the other one, that's the vacuum breaker.

You can get yourself oriented by watching my tech tour Video here where I explain the internals of a Bianca (it was the prototype, but most of it is the same).

If the machine is still in warranty, if it's the safety valve, the retailer should send you another free under warranty. If it's the vacuum breaker, you would need to pay for that as it's down to use and if it's gone early, often poor quality water (not necessarily hardness)



The constant boiling sound seems to be coming from the Safety valve, is it normal that the water is flowing from the safety valve constantly? My warranty has unfortunately expired, if it is the safety valve that has failed: can i just change it? Found one here: https://www.bellabarista.co.uk/lelit-bianca-safety-valve.html

Is it easy to change?
Click to expand...
 
#84 · (Edited by Moderator)
@bluealex - It's likely to be the safety valve, a very simple thing to replace. If you want to be doubly sure, remove the hose carefully from the top of the safety valve. Dry the outlet with some kitchen towel.

Turn machine on, steam boiler on. You may get some water coming out of the OPV, so just make sure you plug that or catch any water, just in case.

If steam keeping coming out of it from the top, you know you have a problem there.

Just give Bella Barista a ring and they will send you the right part.

Part: https://www.bellabarista.co.uk/lelit-bianca-safety-valve.html

This is on the Elizabeth. The principle is the same.

 
#86 ·
bluealex said:
i have it set a 132 Celsius, steam pressure just around 2-2.2 bar
Click to expand...
yeah, it shouldn't leak at that pressure, best buy another one and pop it on...clean out the threads of any sealant (unless it's using a copper washer, try not to drop too much into the boiler and wrap the thread with PTFE tape, 5 to 7 turns in the right direction then fit it. You don't need to have it fully tightened when using PTFE, in fact it's more likely to leak if it is.

P.S. Support the boiler really well!
 
#87 ·
I've tested to drop the temp, it still does the same thing. Starts leaking at lower temps when powering on.

i will try to replace the safety valve and see if this fixes the problem.

thank you all for your kind help!

p.s is it safe(ish)? To use the machine until fixed?
 
#89 · (Edited by Moderator)
Hello,

today after about two months i recieved a new safety valve for my bianca. I also ordered a anti vac valve just in case!

the safety valve i recieved is not the same as the one i found online or the current one in my bianca. I ordered the parts from the same store i purchased my bianca and they also do repairs etc.

here is a picture of the valve i got from them. Any experts know if this valve is the same or suitable for my bianca? Its much longer than the current one.

thanks alot!

Rectangle Font Gas Handwriting Auto part
 

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#90 ·
bluealex said:
Hello,

today after about two months i recieved a new safety valve for my bianca. I also ordered a anti vac valve just in case!

the safety valve i recieved is not the same as the one i found online or the current one in my bianca. I ordered the parts from the same store i purchased my bianca and they also do repairs etc.

here is a picture of the valve i got from them. Any experts know if this valve is the same or suitable for my bianca? Its much longer than the current one.

thanks alot!

View attachment 61841
Click to expand...
What's the concern?

A quick google tells me it's just fine.

https://www.bellabarista.co.uk/lelit-bianca-safety-valve.html

https://www.jetblackespresso.com.au/shop/p/safety-valve-pl162t-3bar-1-8-9700050

(I google the part code)
 
#91 ·
#94 ·
Sadly i have been having the same issue lately after around 1 year of owning Bianca,
I tried to remove the VBV tube and i could hear some hissing coming out of it but the outlet kept dripping after removing the tube, so it must be the safety valve? can both valve break at the same time huh?

IMG_1366.MOV

drive.google.com drive.google.com
 
#96 ·
Update: today i got the replacement safety valve...and it was a damn hard job to get some tool to remove it without disassembling half of the machine lol.
( i hope Lelit reconsider the ease maintenance in their future machines) cause everything seems so tightly fitted.
After installing it and after replacing the the o ring for the VBV, everything seems working perfectly.
I'm still baffled how the hell the VBV and safety valve broke at the same time!!

BTW the new safety valve seems a longer version than the previous installed one.
 
#98 ·
I am reviving an old thread and am praying for help :( I think I have the same problem with my lelit bianca v3, there is a slow drip out of the nipple below the group head and it drains my water super fast and fills my drip tray if i have the machine on all day :(. I took some videos and stuff of that start up and then after it gets to heat.. I read up on this thread, so my safety valve is pretty dry during the leak (just by watching it at the top) and the vacuum (vbv?) is super steamy and wet and spurts water both during start up, and now its currently still slightly doing it despite being at heat for a little bit (10 min). What does this mean? is this normal? im not sure :O thank you for any help
 
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kuma
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