I can’t seem to get rid of unpleasant harshness and dryness

MuddyOne possibly, price and colour dependent 🤓 …. And you are in the UK 🤔

MuddyOne - I’ll quote myself again…. :-)

MediumRoastSteam MuddyOne - Interesting. That’s a possibility for sure. But… Logically speaking, it is not as simple. Because the machine should not heat up the longer it stays on idling, and that’s totally unrelated to the offset value. So you might want to tune/review the PID parameters - I mean, the Proportional, Integral and Derivative values. I have no idea how you do that on this new version, sorry.

My theory: You are barking at the wrong tree. Leave the offset alone. Essentially you are saying that your machine temperature target (what you want to set it to) is 8C (or whatever the unit is) lower than the pre-set programmed. If the pre-programmed offset is 12 (just saying that because apparently the factory default is +2, so group being 14C colder than boiler- i.e.: water in the boiler needs to be 108C in order to reach 94C in the group) is within normality. Yet, you are now setting this to -8 (read: boiler water needs to be 98C in order to deliver 94C at the group) - (if that’s what that is) is most likely throwing your PID controller out of the window and it’s erroring like crazy.

https://en.wikipedia.org/wiki/Proportional%E2%80%93integral%E2%80%93derivative_controller

So before you think the offset will solve your problems, think again. If they sent you a brand new control box and that was never configured, it might have some crazy default parameters.

You need to do some research, and find out what good PID values are for your machine. Even if you had to copy them from the old Pro-700. A Google research should give you back what you need, including how to get into the advanced menu of your machine so you can set those up.

MuddyOne

You could jot down and publish all your settings to see if any are obviously wrong.

They will be close to but not identical to these for the synchronika i would imagine. See bottom. I do not have the exact settings for the go.

To enter the advanced PID settings mode on the PID :

Turn your machine off

Hold down BOTH the left and right button on the PID at the same time

While both PID buttons are pressed down, turn the machine on and wait for “F.01” to appear

From here, you are in advanced PID settings mode. You can change your machine to function in Celsius or Fahrenheit, switch between 15 and 20 amp power modes (on applicable machines), change boiler temperature offset, and adjust boiler temperature.

To change a setting, press the left button on the PID until the setting you wish to change is showing. Press the right button on the PID to view that setting’s current value, and while the current value is shown press the right and left buttons to adjust it up and down. To exit advanced PID settings mode and save your settings, simply turn the machine off and back on again.

Its not recommend, changing of the P, I, D, or b settings on any of the machines. Changing those 4 settings will change the way the machines reheat and maintain temperature.

The settings that we recommend changing if you are looking for something a little different are:

The setting for which temperature scale you would like to use, commonly shown in the PID settings as F.01. - C (celsius), and F (Fahrenheit)

The setting to change your machine for running in 15 amp or 20 amp mode (on applicable machines). This setting is commonly shown as F.02

The setting to change the temperature of the coffee boiler, commonly shown in the PID settings as T1.

The setting to change the temperature of the steam boiler, commonly shown in the PID settings as T2.

NOTE: We do not recommend changing P, I, D or b settings. These change the algorithms for reheating and maintaining boiler temperature.

Synchronika for reference

MuddyOne

Was just suggesting jotting down your current settings not changing any. Theres no flag set for" last time advanced menu was accessed!!"

1 you would know if its for some reason garbage settings

2 when it comes back you can see what is then set, if its been changed.

Adrianmsmith To enter the advanced PID settings mode on the PID :

He has a new version. It MIGHT not be the same as the old ones, I don’t know.

No idea I’ve never had to play with the offset on any machine I’ve owned.

Was just a suggestion seen as you were getting flash boiling.

Have you fitted a new board or is it still stock

I presume you can just do a factory reset,

Oh I thought the new board was after my suggestion?

Cuprajake Oh I thought the new board was after my suggestion?

He had a new board fitted a few weeks ago according to what I read. It might’ve been the board was misconfigured. We got our wires crossed, sorry.

MuddyOne - Maybe it’s my perception, but it feels, to me, the shot speeds up significantly halfway through. Maybe it’s not the beans, maybe it’s something else. The fact that you struggle to go past 30s feels strange to me. I really don’t know. Maybe someone with a machine similar to yours could post their video (E61, rotary pump).

Is there a way to do the vids private on YouTube they are really small on my phone

Can I ask dose, grind size, basket and what the gauge on the group says

MuddyOne What do you think?

Think you need a lever machine 🤓😋🤔🫣

How did it taste don’t bother with looks. Even time