Hi All,

I have purchased new Lelit Bianca to replace my 13yo old La Nuova Cuadra HX. It arrived just today, beautiful machine and my happiness was endless until I run it... Unfortunately after doing startup fill procedure for both boilers (almost full tank consumed, filtered with stock Lelit filter), only brew boiler started raising temperature until 203F/95C. I have waited 1h and even longer, turned off and on machine... no luck steam boiler pressure and temperature on LLC did not raise (well, it did raise eventually slowly a bit to 92F/33C most likely just from the heat inside the machine). In effect neither steam or hot water wands providing any water.
The brew boiler has warmed up properly initially, and I was able to pull one shot just fine (and quite delicious in cup, even this was very lousy prepared single !) However when I left the machine for 1-2 hours more also brew boiler temperature started deviating, even to 86C/194F...

Initially I though it could be steam boiler heating element is either disconnected or faulty.... but after I saw brew boiler deviating I started thinking that maybe LLC is to blame.

Anybody experienced anything similar? Any clues? Of course if need be I will send back machine to the dealer, but maybe there is still chance that something can be tweaked / fixed to avoid shipping? Beautiful Bianca has broke my heart!

And here's a vid showing the LLC readouts: Many thanks!
Kuba

Did you check steam boiler safety thermo switch? Maybe it needs reset..

This is for other Lelit machine but may help.
Disconnect from power before attempt to do it!!


https://support.clivecoffee.com/en/leli ... ety-switch

Thank you, I will certainly check this .... wouldn't it power-off whole machine and not just one boiler though?
Any suggestion for reason of brew boiler temperature fluctuation? PID (advanced menu) settings are all at default factory values.

Does the bianca have a toggle switch to turn off the steam boiler? I know my ecm does.

Yes it does but the toggle is by default to make steam. Any anyway I tried in both settings, no change.

Kszmigie wrote:...wouldn't it power-off whole machine and not just one boiler though?

No, most double boiler espresso machines have a over-temperature switch that kills power to just the steam boiler if it overheats.

Prodigy wrote:Does the bianca have a toggle switch to turn off the steam boiler?

It's part of the programming options:


From Clive Coffee Lelit Bianca User Manual

Any update? Did you manage to solve it?

I did contact the seller/service yesterday and they recommended sending back the machine for inspection. So I did not open it to fix steam boiler as its actually not my priority (I steam milk very infrequently) - and major issue is still something I need send back the machine - the brew boiler is stopping heating at random temp e.g. 54C, 69C, 84C and staying there. Thanks for asking!

When I make sure brew boiler is properly heated, the quality of coffee is outstanding, I must say I am stunned at the overall performance and features of Bianca compared to my HX La Nuova Era Cuadra... its not a step up, its 2-3 steps - just need to get problem sorted or exchanged to fully working model.

Cheers!
Kuba

I owe you an update to my status. Sent back the machine (as the vendor suggested) and they found that LLC needs an update. I was pretty suspicious , as for a software engineer the symptoms were far too off just to be outdated software but the machine received back was fixed and working so far!
Thanks for all help, now I just need to learn how to get best out of it.
K.