The General ACS Minima Thread

Thanks for the super quick replies. Does your answer change if the flecks are coming out from both sides/boilers?

mjswooper Not really, are they?

mjswooper - it that chrome plating flaking?

Do you get the same from the hot water tap? Or is that from the group?

mjswooper Googling around has some similar cases, but im still pretty concerned. I had about 5-6x the amount in the photo.

I wrote that article…

MediumRoastSteam

This was from the service boiler, via the tap/hot water. Much the same was out the brew boiler/group head as well.

Whip the mushroom out to check. Quickest way

The boilers are stainless

I discovered flaking chrome on a mushroom in a Minima, picture on the first post in this thread. https://coffeetime.freeflarum.com/d/1016-acs-minima-with-lelit-bianca-flow-contol

Norvin Holy shit that is a lot of chrome flakes. Did the flaking eventually stop? I guess there wasn’t much left eh?

My Minima has been happily making great coffee for a few years now, thanks to help from this forum. This morning I decided to give its regular flush clean.

I put in the blind filter and with 3g of cleaner in it I turned it on for 10 seconds, then let it rest for 20 seconds and turned it on again planning for 10 seconds. However, it blew the house electricity fuse after 3 seconds and I had to reset. Reset done I tried again with the same result.

So, I gave up, thinking it might be related to the perhaps higher pressure of the blind filter. I took out the blind filter and thought I’d run it a few times to clear the cleaning agent from the porta-filter. Once again it blew the fuse in the house fusebox. It now blows as soon as I try to pull any shot, virtually instantly.

Might anyone have any ideas what’s causing the problem and how to fix it. At the moment, apart from the worry of not having a working machine, I’m concerned about a Sunday morning with no coffee!!!.

DavecUK Just did that, and when I took off the cover I found the bolt at the bottom of the portafilter run off had fallen off! I don’t know how that could have happened, might backflushing have caused it do you think?

Reassembled and it’s working. Let joy be unconfined, Sunday morning coffee here we come.

Thanks Dave for the suggestion.

Java_avaJ I found the bolt at the bottom of the portafilter run off

I’m not sure which bolt you mean, do you mean the vent bolt? If so, it could just be vibration from the pump.

DavecUK I guess it will be the vent bolt, it’s a bolt that attaches to the bottom of the tube which points vertically downwards found behind the cover you said to remove.

they will be laser etched

Quick question about storage.

We’re having some building work done which means the Minima will be going into storage for potentially 4 months.

I am thinking I should drain the boilers before boxing it back up.

Is this absolutely necessary, or am I being over-cautious?

Thanks

PortafilterProcrastinator I am thinking I should drain the boilers before boxing it back up.

Is this absolutely necessary, or am I being over-cautious?

Probably not necessary, unless you have one of the newer models with drain taps, where it is very easy to do.

DavecUK Thanks, no drain taps on mine.

I’ll see how we go, how long it’s looking like once it all kicks off and whether I get nervous!

Or simply heat both boilers up fully every month…