I have done a lot of research online and even called Rancilio, all with no luck on any information whatsoever on the error I am receiving. (They just told me it is not the system board that is the problem)
I just got done descaling my machine, got it all up and running. All was well. After a while however my TSC steam wand quit reading the temperature of the milk. After messing around with things (including the circuit board connections) trying to get it to register the temp, I caused an even worse issue. The machine now flashes Out Of Order E04 Probe Open message and the machine will not even heat as it cannot sense the boiler temp. It says machine not ready for a couple of seconds, then shows the time etc as if it were ready, but after pushing any buttons, the error flashes. I know I disconnected the boiler probe wire from the circuit board, but I cant see how that would cause it to stop working all together after hooking everything back up.
I'm not sure if there is some kind of master reset for the machine that isnt listed in the technical or owners manual?
Been fiddling with it off and on for weeks, frustrated, so any help would be greatly appreciated!
Good luck, when it comes to the computers inside these machines, the manufacturer is the first stop. They should have the manuals and guides to repair the machine but may not want to let the information out of their fingers, IDK.
Perhaps the probe wire is shorting out somplace? a bad connection? A broken wire at the connector?
In real life, my name is Wayne P. Anything I post is personal opinion and is only worth as much as anyone else's personal opinion. YMMV!
Feed the newbs, starve the trolls and above all enjoy what you drink!
I have checked all of the wires and connections very closely and have found nothing wrong with them. Because it was working before i disconnected the wire i'm sure the probe is fine. It just stopped sensing or reading the probe for the boiler and the TSC wand.
They definitely did not seem eager to help other than forward me the generic documents that can be found online and point me to a service technician in my area.
I spoke with Rancilio again (who will not allow their reps to speak with an end user). They said the probe is not being read and should be replaced. I will give this a try by purchasing a new probe. Update to come. Still going to have the issue of the TSC wand not reading temperature.
tsruhnke Senior Member Joined: 20 May 2012 Posts: 19 Location: Des Moines Expertise: Pro Barista
Posted Tue May 13, 2014, 3:15pm Subject: Re: Rancilio Classe 8 E04 Error
I also noticed that in the boiler probe calibration settings, it is constantly reading 1.9 bars as the reading. I'm guessing this isnt a real measure, but rather the max measurable and something is stuck reading that high?
Symbols: = New Posts since your last visit = No New Posts since last visit = Newest post
Forum Rules: No profanity, illegal acts or personal attacks will be tolerated in these discussion boards. No commercial posting of any nature will be tolerated; only private sales by private individuals, in the "Buy and Sell" forum. No SEO style postings will be tolerated. SEO related posts will result in immediate ban from CoffeeGeek. No cross posting allowed - do not post your topic to more than one forum, nor repost a topic to the same forum. Who Can Read The Forum? Anyone can read posts in these discussion boards. Who Can Post New Topics? Any registered CoffeeGeek member can post new topics. Who Can Post Replies? Any registered CoffeeGeek member can post replies. Can Photos be posted? Anyone can post photos in their new topics or replies. Who can change or delete posts? Any CoffeeGeek member can edit their own posts. Only moderators can delete posts. Probationary Period: If you are a new signup for CoffeeGeek, you cannot promote, endorse, criticise or otherwise post an unsolicited endorsement for any company, product or service in your first five postings.