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Rancilio Midi DE S20 trips circuit breaker
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SClarke
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Joined: 23 Sep 2012
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Location: Stockport
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Posted Sun Sep 23, 2012, 12:55pm
Subject: Rancilio Midi DE S20 trips circuit breaker
 

As the title really, left scratching my head in how to track this down. It's had the elements disconnected and still trips so I presume this means the elements are fine?
It tripped this morning then pulled one cappuccino before tripping again. So really was looking at some advice in how to track down the cause, whilst it's not had a proper refurbishment it's also never seen the work, or hard water that it can take. It's been fine and ran with no issues apart from some loose bits keeping the hot water tap solenoid from closing properly.

I do have the schematics but have some very rudimentary knowledge of a multimeter and don't even know where to start, my guess is we have short that is tripping the circuit breaker but how do I track it if it trips every time it's turned on?
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Nettaiya
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Posted Sun Sep 23, 2012, 1:10pm
Subject: Re: Rancilio Midi DE S20 trips circuit breaker
 

Checked all the wires inside for anything that may be shorting out or a wire that could have had its sheath melted away and exposed?
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SClarke
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Posted Sun Sep 23, 2012, 1:15pm
Subject: Re: Rancilio Midi DE S20 trips circuit breaker
 

It's been fine it's been in use twice daily for about a year. No extras on the circuit, worked fine yesterday. This sees the lightest use ever, now I've got it, but even in when it was commercial it's not done much more than cosmetic damage.

Edit..
Sure I read something else..

Inside looks fine, still think I'll have a closer look, if it's not this. What would be next could solenoids do this etc..
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SClarke
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Posted Mon Sep 24, 2012, 7:07am
Subject: Re: Rancilio Midi DE S20 trips circuit breaker
 

Well looked thoroughly inside, all connections look fine, all wires in pretty good condition. Only thing found case on indicator led was broke disconnected still blew the breakers.
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stefano65
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stefano65
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Posted Mon Sep 24, 2012, 12:50pm
Subject: Re: Rancilio Midi DE S20 trips circuit breaker
 

When exactly the breaker trips?
when strting the shot or when finish it or during?
and for breaker you mean a panel breaker or a GFCI plug?

 
Stefano Cremonesi
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SClarke
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Location: Stockport
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Posted Mon Sep 24, 2012, 11:52pm
Subject: Re: Rancilio Midi DE S20 trips circuit breaker
 

As soon as it's turned on, can't even get a shot.

When it went the second time it had been on long enough for one shot, then went without anything being done. This was having woken to find it had tripped I presume when the timer clicked it on.
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stefano65
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Posted Tue Sep 25, 2012, 9:17am
Subject: Re: Rancilio Midi DE S20 trips circuit breaker
 

GFCI or panel breaker?
in other words ground dispersion or over drawing?

 
Stefano Cremonesi
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frcn
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Posted Tue Sep 25, 2012, 9:41am
Subject: Re: Rancilio Midi DE S20 trips circuit breaker
 

Try it on another circuit. IT could be a bad GFCI or bad breaker. Be sure that it is GFCI protected wherever you test it.
Rotary pump? Could it be a shorted start capacitor? Try disconnecting the pump leads.

 
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stefano65
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stefano65
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Posted Wed Sep 26, 2012, 7:47am
Subject: Re: Rancilio Midi DE S20 trips circuit breaker
 

still not clear
as soon as you flip the main switch or as soon as you start a shot?
option one will eliminate the above GOOD suggestion from Randy
unless of course the autofill is kicking in, which as we know doesn't do that every-time,

basically where I'm trying to take you is
eliminate components failure or look for electrical connection possibly getting wet

 
Stefano Cremonesi
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calblacksmith
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Posted Wed Sep 26, 2012, 11:57am
Subject: Re: Rancilio Midi DE S20 trips circuit breaker
 

As I read the thread, I came to the same thought as Stefhano,
If the pump is shorted out, the breaker will trip any time you try or the machine tries to use the pump, such as filling the boiler when starting or when you start to pull a shot. Timing is important.

 
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