DeLonghi EAM 3000 B - Grinder does not start up

Hello,

After umpteen attempts I hope you can help me.
My DeLonghi EAM 3000 B does not want more. More precisely, the grinder.
When I press one of the two buttons for 1 or 2 cups, the LED lights up but the grinder does not start. As if the machine would wait for something.
In test mode, however, I can run this without any problems.
Factory reset also brought no success. Errors are also not displayed.

Must in normal operation still be any condition that the grinder starts?

Anyone ever had similar error?

I guess yes on the control board. Even if I could not determine anything there apparently

Greetings,
Joachim

Hi Joachim,
the manual states 'A few seconds may elapse between energy saving mode and delivery of the first coffee.'
Sounds a bit like it. If it waits for the heating unit to reach brewing temperature again?

Another thought: I think I had a similar effect once when the water quantity know was all the way to min.

Thank you for the advice.

I had forgotten to mention that the preparation with powder works without problems.
Presumably the brewing temperature is also checked and seems to be ok.

Both different amounts of water and strength do not lead to the solution.
In the self-test, both potentiometers also work normally. (LEDs are turned on accordingly depending on the position.

Nothing happens even minutes after pressing one of the buttons. It just lights up the respective green LED.

I absolutely lack the approach which component spins here

You said the grinder works in test mode, my thoughts here:
The button in test mode triggers the grinder somewhat directly.
Whereas during brewing the control board (behind the front panel) compares the coffee knob with an internal value and holds the grinders' relais running until values match.
I would have close look at the control board in the front of the machine.