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TomR

Duetto trips RCD - help!

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I have a 10 year old Duetto that started tripping our RCD when turned on, but only intermittently. 

We sent it to an experienced Alex Duetto technician, who replaced a couple of valves / switches and the brew boiler (he found a small hole) as well as a general descale / flush service ,(parts list below) and  and had it working fine in his workshop

8mm Silicone Group Gasket - £2.99
E61 Group head shower - £2.99
Izzo Duetto BRew Boiler - £98.99
Brew Boiler Element Seal - £1.99
Service Boiler Element Seal - £1.99
Izzo Red Rocker power switch - £4.99
Izzo Boiler MAnometer - £24.99
High Temp Limit Stat - £3.99
Izzo Steam Tube - £5.99

On arrival back with us it still trips our RCD!

It's otherwise in good nick I think - the PID failed and was replaced a year or so ago, so is pretty new.

Any ideas what to do or what might be wrong??

Does anyone know a London based tech who might be able to fix it?

I was planning on selling it once working, but if anyone wants to buy it in its current state they are welcome to make me an offer?  I mostly drink aero press these days

Thanks

Tom

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I think the brew or steam boiler (really called the service boiler) heating element is bad. They use a copper heating element and withhigh limescale water and frequent strong descaling will be more likely to fail. Turn off the service boiler and use it just with the brew boiler, see if it trips and then depending on model switch off the brew boiler and run the service boiler only...see if it trips. If you have a  MKI or MKII I am pretty sure you can do that, with later models I can't remember for sure.

It probably worked fine in his workshop if he had it either on an industrial RCD or no RCD

P.S. Very surprised the brew boiler had a hole in it, were you using commercial descalers a lot or something?

Someone here might send you a lowball offer by pm, my advice would be to get the problem fixed and not accept some stupid offer....

Edited by DavecUK
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Thanks Dave that's very useful. I will experiment later with isolating the boilers.

 

Do you happen to know anyone in SW London / Surrey who could change the element? 

 

Tom

 

 

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You should really do it yourself will just take you longer, I have had the same machine once they run they don't stop. Order from Bella  Barista, plus the seals they put back in are shite you need to use a piece of high grade and  high temp

Edited by Jony

SAGE IS NOT A UPGRADE

 

 

:)

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Thanks Jony

 

I'm keen to have a go if it doesn't need specialist tools. I can't find any online guides on how to do this or what tools are involved.  Is it just a question of removing the bottom panel and unscrewing / disconnecting  the element and replacing?  I can fix bikes - is it a similar level of handiness??

 

Tom

 

 

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Find your fault first.

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SAGE IS NOT A UPGRADE

 

 

:)

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4 hours ago, Jony said:

You should really do it yourself will just take you longer, I have had the same machine once they run they don't stop. Order from Bella  Barista, plus the seals they put back in are shite you need to use a piece of high grade and  high temp

Not quite a DIY job, in addition to opening he would also need a 1-1/2" 38 mm spanner for the element or take it to a "friendly" garage.

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