Hoping someone can confirm in which direction I should insert the solenoid pins - I expect one is 'up' and one is 'down' - but which is which?

Hello everyone, been a 10y+ long time lurker and finally created HB account (paranoid about spam). Anyways, I think I already know the possible fix, but wanted to run this by all you experts before attempting to fix.

Machine : Isomac Tea HX
Regular backflushing done weekly,...

I'm finishing up a complete refurb on an old Simonelli MAC. But, the auto-fill is overflowing the boiler, and I can't get the fill-probe/controller to turn the pump off.

I jumpered the auto-fill port on controller directly to the incoming ground. I believe this should have...

I have just joined the forum mainly because I am having a problem with my machine - a Rocket R58 that I have owned for about 10 years and hope someone can give me a clue as to solve my problem.

Over the past few months when I pull a shot, the pump pressure has been steadily...

Hello!

I'm currently trying to get an unloved and unserviced 'La Marzocco Linea 2 AV' built in October 2007 to work properly.

After quite a lot of cleaning and checking for blocked pipes, the largest problem that has me stuck at a dead end is that the coffee boiler element...

Urnex Descaler definitely eats chrome. What about their phosphate-free product, Biocaf Descaler? Does anyone have experience with it?
Any other products worth considering? This would be for descaling an HX. I'm worried about descaler coming in contact with chrome parts on the...

GS/3 MP about 3 years old. I noticed some black specs in the tea water recently. Since I'd had a vacuum breaker fail and an o-ring dissolve, I thought it might be residue from that. I drained the steam boiler twice. The first time there were a lot of black flakes in the bucket....

Hi everyone,

My Lelit Bianca has 3 years, and for the past year it's been plumbed in and using a BWT Smart Bestmax 25 filter. The first two years I used the Lelit water softener with a regular 6 months replacement.

A few days ago I took the mushroom off and noticed flaking...

1978 Olympia Club used as a daily driver for around 2 years, with original Pstat.
Pstat has worked flawlessly once up to pressure, (boiler light clicks on every 3-5 minutes for about 15 seconds). Recently It started acting funny and randomly turning on and off at odd times,...

Hello everyone!
I would like to discuss about commercial espresso machines. What is the best machine in terms of reliability and low maintenance costs? Do you have your favorites? Which ones and why?
My personal is FB80 from La Marzocco. Dual boiler, good heat stability, precise...