Post By TC
Post By pecan
Rancilio Silvia problem
Ive had my silvia since 2005 and love it. It has never missed a beat until now. i left it on while i was away for a day and cooked the element. I replaced the boiler (new element) and it still trips out the earth leakage. I can run it off a circuit breaker no problems. Also when I turn on the water switch to get hot water from the steam wand water also comes out of the group head. Ive checked the wiring, (I took photos before I replaced the boiler), and everything is definitely in the right place.
If anyone has any idea what the problem is I would be stoked to know. I live in a country area and can't find anyone to look at it for me.
tripping the earth leakage means (as you probably know) that the active phase reaches the ground.
Originally Posted by pecan
Typical reasons... water in the circuit or bad insulation.
I would check if there is any visual water inside the machine (but try to avoid electricuting yourself - especially as you are out of the earth tipping protection).
If there is no water in the machine and no bad insulation - I would question quality of new element or the way how it was installed. It looks that water gets inside the element.
No visible water anywhere. I have all the covers off and everything looks fine, have checked and double checked all wiring against my photos and wiring diagram, all good.
I had my electrician check the element it comes up good.
It heats up water fine but trips the earth leakage when the brew, hot water or steam switch is used
Originally Posted by pecan
- trips on steam (no pump involved, just heater)
- trips on hot water (no heater, just pump)
The only common denominator is the switch itself (and some common wires).
Any water on the switch?
Does it trip immediately or after a while?
Any wires that are touching hot parts like boiler?
Could be a dodgy switch? Which of the wires did you have to remove? If any of these were put back incorrectly it would easily create a short circuit somewhere
Check you have not swapped neutral and active on the switches compared to the heater. When you switch anything on you are shorting active to neutral/earth, sure to drop anything off. Like the previous post, juts a bit more descriptive.
Also pls see relevant post from other thread..
Originally Posted by CafeLotta
All wires definitely in there correct place. I have tried it with wires to the element disconnected, it still trips.
What about the water coming out the group when hot water switch turned on? I have cleaned the solenoid valve
I would recommend you take your machine to a tech who can safely repair it. 240V and inexperience are not happy bed partners...
I replaced my Silvia's boiler which solved my tripping the mains earth leakage problem, but your problem sounds a bit more complicated.
I ditto Chris' suggestion, get an electrician to look at it, there may not be any coffee machine technicians your way but there should be an electrician somewhere...?
If you are confident to keep fault finding yourself,...I would disconnect the 3 way valve solenoid, and try again .
Originally Posted by blend52
If water comes out the group with only the hot water switch on then something is suspect about that valve.
If you were to disconnect the power to it, then the hot water and steam functions should still work okay.
Originally Posted by nicovington
This is all good analysis, however, let's take a step backwards. This started when the unit was left on all day. That shouldn't have caused a problem on its own. Did the heating element actually fail, or did the earth leakage trip cause you to THINK the heating element had failed? Maybe something else happened - did it overheat and damage the 3-way valve seals, or short-out the coil windings, or fuse some wires together???
If water comes out of the group head with just the water switch on, then a) the wiring to the 3-way is wrong (you say it is OK), or b) the wiring to the 3-way has fused to other wiring causing it to come on at the wrong time, or c) the seals in the 3-way are shot.
Thanks everyone for your replies. I have bit the bullet and sent the machine off to be repaired. I couldn't stand the thought of not having it over the Xmas break.
Gonzo, I like the way your thinking and was leaning this way myself. My electrician did test the original element and it was shot. I also pulled the solenoid apart and cleaned it and it appeared to be ok to my untrained eye. But I suspect there is something going on with it.
i will post when I have a diagnosis from the tech. Thanks again everyone
Well got my machine back a couple of days before xmas. It now has a new solenoid coil.
It also has a new PID and pressure gauge which I had ordered before the solenoid died. Installed it all on xmas day and now producing the most consistently good shots i've ever had. I've been playing with the temp and am amazed at the difference it makes to the taste
Great outcome! What temp are you running the boiler at?
Still playing with it. At the moment 105 at the start of the shot, it drops to 102 by the end of the shot, 25 sec.
it was preset at 103 and at 105 I'm getting a lot more of the chocolate taste
i also insulated the boiler, top of the group and steam pipe
Wow that seems pretty stable! I use mine around 104-106 and I'm sure its under 100 by the end of a shot.
What did you use to insulate it? I've been looking around for stuff but unable to find an affordable and easy option.
Yeah, mine dips to around 98 by the end of a 25 sec shot. INterested to see what you've done
I used a closed cell silicone foam. I bought it as a pre cut kit with the PID and pressure gauge from a site in the US. This guy was very helpful and even sent me extra pieces of insulation for the top of the boiler as I changed the boiler after he had sent the first lot and the new boiler was slightly different shape. He didn't charge anything for this and did it because he thought it would look better